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  1. Article: The protective role of

    Furone, Francesca / Bellomo, Claudia / Carpinelli, Martina / Nicoletti, Martina / Hewa-Munasinghege, Francesca Natasha / Mordaa, Majed / Mandile, Roberta / Barone, Maria Vittoria / Nanayakkara, Merlin

    Frontiers in medicine

    2023  Volume 10, Page(s) 1085578

    Abstract: Celiac disease (CD) is an autoimmune enteropathy caused by an abnormal immune response to gliadin peptides in genetically predisposed individuals. For people with CD, the only available therapy thus far is the lifelong necessity for a gluten-free diet ( ... ...

    Abstract Celiac disease (CD) is an autoimmune enteropathy caused by an abnormal immune response to gliadin peptides in genetically predisposed individuals. For people with CD, the only available therapy thus far is the lifelong necessity for a gluten-free diet (GFD). Innovative therapies include probiotics and postbiotics as dietary supplements, both of which may benefit the host. Therefore, the present study aimed to investigate the possible beneficial effects of the postbiotic Lactobacillus rhamnosus GG (LGG) in preventing the effects induced by indigested gliadin peptides on the intestinal epithelium. In this study, these effects on the mTOR pathway, autophagic function, and inflammation have been evaluated. Furthermore, in this study, we stimulated the Caco-2 cells with the undigested gliadin peptide (P31-43) and with the crude gliadin peptic-tryptic peptides (PTG) and pretreated the samples with LGG postbiotics (ATCC 53103) (1 × 108). In this study, the effects induced by gliadin before and after pretreatment have also been investigated. The phosphorylation levels of mTOR, p70S6K, and p4EBP-1 were increased after treatment with PTG and P31-43, indicating that the intestinal epithelial cells responded to the gliadin peptides by activating the mTOR pathway. Moreover, in this study, an increase in the phosphorylation of NF-κβ was observed. Pretreatment with LGG postbiotic prevented both the activation of the mTOR pathway and the NF-κβ phosphorylation. In addition, P31-43 reduced LC3II staining, and the postbiotic treatment was able to prevent this reduction. Subsequently, to evaluate the inflammation in a more complex intestinal model, the intestinal organoids derived from celiac disease patient biopsies (GCD-CD) and controls (CTR) were cultured. Stimulation with peptide 31-43 in the CD intestinal organoids induced NF-κβ activation, and pretreatment with LGG postbiotic could prevent it. These data showed that the LGG postbiotic can prevent the P31-43-mediated increase in inflammation in both Caco-2 cells and in intestinal organoids derived from CD patients.
    Language English
    Publishing date 2023-05-04
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2775999-4
    ISSN 2296-858X
    ISSN 2296-858X
    DOI 10.3389/fmed.2023.1085578
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Chronic granulomatous disease. Diagnosis by the dihydrorhodamine assay.

    Sanabria, Diana / Giménez, Vivian / Martínez de Cuéllar, Celia / Carpinelli, Mercedes / Benegas, Sara / Insaurralde, Santiago

    Revista chilena de pediatria

    2020  Volume 91, Issue 1, Page(s) 19–26

    Abstract: Introduction: Chronic granulomatous disease (CGD) is characterized by an alteration of the neutrophil oxidative function. Its inheritance patterns are linked to the X chromosome (X-linked CGD) and autosomal recessive (AR CGD). The dihydrorhodamine (DHR) ...

    Title translation Enfermedad granulomatosa crónica. Diagnóstico mediante el ensayo de dihidrorodamina.
    Abstract Introduction: Chronic granulomatous disease (CGD) is characterized by an alteration of the neutrophil oxidative function. Its inheritance patterns are linked to the X chromosome (X-linked CGD) and autosomal recessive (AR CGD). The dihydrorhodamine (DHR) assay is used for the diagnosis and detection of carriers and provides information on inheritance patterns.
    Objective: To detect CGD cases in chil dren with recurrent infections and to evaluate their female relatives through the DHR assay to iden tify carriers and obtain information about possible inheritance patterns.
    Patients and method: 107 patients (<18 years of age) with clinical suspicion of CGD such as pneumonia, lymphadenopathies, and abscesses were included, referred by physicians from public hospitals between 2014 and 2017. Six female relatives of children with CGD were also included. The DHR assay was performed on all patient samples and the results were expressed as neutrophils stimulation index (SI).
    Results: The median age of patients was 3 years and 62/107 of them were male. The average SI was 39.7±13.8 and a complete shift of DHR was found in 101/107 children. In 2/107 children, no DHR shift was observed (SI=1.0) indicating possible X-linked CGD, and a third child showed a slight DHR shift (SI=4.8) compatible with AR CGD. 5/6 female relatives presented a bimodal pattern, showing a carrier status.
    Conclusions: Three cases of CGD and five female carriers were detected through the DHR assay, being the first time that this technique was used in Paraguay. Information on the most likely inheri tance patterns, two X-linked CGD, and one AR CGD case was also obtained.
    MeSH term(s) Adolescent ; Biomarkers/blood ; Child ; Child, Preschool ; Female ; Flow Cytometry ; Granulomatous Disease, Chronic/blood ; Granulomatous Disease, Chronic/diagnosis ; Granulomatous Disease, Chronic/genetics ; Humans ; Infant ; Inheritance Patterns ; Male ; Rhodamines/blood
    Chemical Substances Biomarkers ; Rhodamines ; dihydrorhodamine 123 (109244-58-8)
    Language Spanish
    Publishing date 2020-01-22
    Publishing country Chile
    Document type Journal Article
    ZDB-ID 954077-5
    ISSN 0717-6228 ; 0034-7396 ; 0370-4106
    ISSN (online) 0717-6228
    ISSN 0034-7396 ; 0370-4106
    DOI 10.32641/rchped.v91i1.986
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Antibody Profile, Gene Expression and Serum Cytokines in At-Risk Infants before the Onset of Celiac Disease.

    Auricchio, Renata / Galatola, Martina / Cielo, Donatella / Rotondo, Roberta / Carbone, Fortunata / Mandile, Roberta / Carpinelli, Martina / Vitale, Serena / Matarese, Giuseppe / Gianfrani, Carmen / Troncone, Riccardo / Auricchio, Salvatore / Greco, Luigi

    International journal of molecular sciences

    2023  Volume 24, Issue 7

    Abstract: Immunological events that precede the development of villous atrophy in celiac disease (CeD) are still not completely understood. We aimed to explore CeD-associated antibody production (anti-native gliadin (AGA), anti-deamidated gliadin (DGP) and anti- ... ...

    Abstract Immunological events that precede the development of villous atrophy in celiac disease (CeD) are still not completely understood. We aimed to explore CeD-associated antibody production (anti-native gliadin (AGA), anti-deamidated gliadin (DGP) and anti-tissue transglutaminase (anti-tTG)) in infants at genetic risk for CeD from the Italian cohorts of the PREVENT-CD and Neocel projects, as well as the relationship between antibody production and systemic inflammation. HLA DQ2 and/or DQ8 infants from families with a CeD case were followed from birth. Out of 220 at-risk children, 182 had not developed CeD by 6 years of age (CTRLs), and 38 developed celiac disease (CeD). The profiles of serum cytokines (INFγ, IL1β, IL2, IL4, IL6, IL10, IL12p70, IL17A and TNFα) and the expression of selected genes (FoxP3, IL10, TGFβ, INFγ, IL4 and IL2) were evaluated in 46 children (20 CeD and 26 CTRLs). Among the 182 healthy CTRLs, 28 (15.3%) produced high levels of AGA-IgA (AGA+CTRLs), and none developed anti-tTG-IgA or DGP-IgA, compared to 2/38 (5.3%) CeD infants (Chi Sq. 5.97,
    MeSH term(s) Child ; Humans ; Infant ; Celiac Disease/genetics ; Gliadin ; Cytokines/genetics ; Interleukin-10 ; Interleukin-2 ; Interleukin-4 ; Transcriptome ; Immunoglobulin G ; Transglutaminases/metabolism ; Autoantibodies ; Immunoglobulin A ; Sensitivity and Specificity
    Chemical Substances Gliadin (9007-90-3) ; Cytokines ; Interleukin-10 (130068-27-8) ; Interleukin-2 ; Interleukin-4 (207137-56-2) ; Immunoglobulin G ; Transglutaminases (EC 2.3.2.13) ; Autoantibodies ; Immunoglobulin A
    Language English
    Publishing date 2023-04-06
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms24076836
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Grainyhead-like Transcription Factors in Craniofacial Development.

    Carpinelli, M R / de Vries, M E / Jane, S M / Dworkin, S

    Journal of dental research

    2017  Volume 96, Issue 11, Page(s) 1200–1209

    Abstract: Craniofacial development in vertebrates involves the coordinated growth, migration, and fusion of several facial prominences during embryogenesis, processes governed by strict genetic and molecular controls. A failure in any of the precise spatiotemporal ...

    Abstract Craniofacial development in vertebrates involves the coordinated growth, migration, and fusion of several facial prominences during embryogenesis, processes governed by strict genetic and molecular controls. A failure in any of the precise spatiotemporal sequences of events leading to prominence fusion often leads to anomalous facial, skull, and jaw formation-conditions termed craniofacial defects (CFDs). Affecting approximately 0.1% to 0.3% of live births, CFDs are a highly heterogeneous class of developmental anomalies, which are often underpinned by genetic mutations. Therefore, identifying novel disease-causing mutations in genes that regulate craniofacial development is a critical prerequisite to develop new preventive or therapeutic measures. The Grainyhead-like ( GRHL) transcription factors are one such gene family, performing evolutionarily conserved roles in craniofacial patterning. The antecedent member of this family, Drosophila grainyhead ( grh), is required for head skeleton development in fruit flies, loss or mutation of Grhl family members in mouse and zebrafish models leads to defects of both maxilla and mandible, and recently, mutations in human GRHL3 have been shown to cause or contribute to both syndromic (Van Der Woude syndrome) and nonsyndromic palatal clefts. In this review, we summarize the current knowledge regarding the craniofacial-specific function of the Grainyhead-like family in multiple model species, identify some of the major target genes regulated by the Grhl transcription factors in craniofacial patterning, and, by examining animal models, draw inferences as to how these data will inform the likely roles of GRHL factors in human CFDs comprising palatal clefting. By understanding the molecular networks regulated by Grhl2 and Grhl3 target genes in other systems, we can propose likely pathways that mediate the effects of these transcription factors in human palatogenesis.
    MeSH term(s) Abnormalities, Multiple/genetics ; Animals ; Cleft Lip/genetics ; Cleft Palate/genetics ; Craniofacial Abnormalities/embryology ; Craniofacial Abnormalities/genetics ; Cysts/genetics ; DNA-Binding Proteins/genetics ; Gene Expression Regulation, Developmental ; Humans ; Lip/abnormalities ; Maxillofacial Development/genetics ; Transcription Factors/genetics
    Chemical Substances DNA-Binding Proteins ; Transcription Factors
    Language English
    Publishing date 2017-10
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 80207-4
    ISSN 1544-0591 ; 0022-0345
    ISSN (online) 1544-0591
    ISSN 0022-0345
    DOI 10.1177/0022034517719264
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: The absolute-log method of quantifying relative competitive ability and niche differentiation

    Carpinelli, M.F

    Weed technology : a journal of the Weed Science Society of America. 2005 Oct-Dec, v. 19, no. 4

    2005  

    Keywords plant competition ; niches ; statistical models
    Language English
    Dates of publication 2005-10
    Size p. 972-978.
    Document type Article
    ZDB-ID 743243-4
    ISSN 1550-2740 ; 0890-037X
    ISSN (online) 1550-2740
    ISSN 0890-037X
    Database NAL-Catalogue (AGRICOLA)

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  6. Article ; Online: Interrogating the Grainyhead-like 2 (Grhl2) genomic locus identifies an enhancer element that regulates palatogenesis in mouse.

    de Vries, Michael / Carpinelli, Marina / Rutland, Emilie / Hatzipantelis, Aaron / Partridge, Darren / Auden, Alana / Anderson, Peter J / De Groef, Bert / Wu, Han / Osterwalder, Marco / Visel, Axel / Jane, Stephen M / Dworkin, Sebastian

    Developmental biology

    2019  Volume 459, Issue 2, Page(s) 194–203

    Abstract: The highly-conserved Grainyhead-like (Grhl) transcription factors are critical regulators of embryogenesis that regulate cellular survival, proliferation, migration and epithelial integrity, especially during the formation of the craniofacial skeleton. ... ...

    Abstract The highly-conserved Grainyhead-like (Grhl) transcription factors are critical regulators of embryogenesis that regulate cellular survival, proliferation, migration and epithelial integrity, especially during the formation of the craniofacial skeleton. Family member Grhl2 is expressed throughout epithelial tissues during development, and loss of Grhl2 function leads to significant defects in neurulation, abdominal wall closure, formation of the face and fusion of the maxilla/palate. Whereas numerous downstream target genes of Grhl2 have been identified, very little is known about how this crucial developmental transcription factor itself is regulated. Here, using in silico and in utero expression analyses and functional deletion in mice, we have identified a novel 2.4 ​kb enhancer element (mm1286) that drives reporter gene expression in a pattern that strongly recapitulates endogenous Grhl2 in the craniofacial primordia, modulates Grhl2 expression in these tissues, and augments Grhl2-mediated closure of the secondary palate. Deletion of this genomic element, in the context of inactivation of one allele of Grhl2 (through generation of double heterozygous Grhl2
    MeSH term(s) Alleles ; Animals ; Enhancer Elements, Genetic/genetics ; Female ; Gene Deletion ; Gene Expression ; Gene Expression Regulation, Developmental ; Genes, Reporter ; Genetic Loci ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Neural Tube/embryology ; Neural Tube Defects/genetics ; Neurulation/genetics ; Palate/embryology ; Transcription Factors/genetics ; Transcription Factors/metabolism
    Chemical Substances Transcription Factors ; grainy head-like 2 protein, mouse
    Language English
    Publishing date 2019-11-26
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 1114-9
    ISSN 1095-564X ; 0012-1606
    ISSN (online) 1095-564X
    ISSN 0012-1606
    DOI 10.1016/j.ydbio.2019.11.015
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  7. Article ; Online: Quantitative phase retrieval with picosecond X-ray pulses from the ATF Inverse Compton Scattering source.

    Endrizzi, M / Gureyev, T E / Delogu, P / Oliva, P / Golosio, B / Carpinelli, M / Pogorelsky, I / Yakimenko, V / Bottigli, U

    Optics express

    2011  Volume 19, Issue 3, Page(s) 2748–2753

    Abstract: Quantitative phase retrieval is experimentally demonstrated using the Inverse Compton Scattering X-ray source available at the Accelerator Test Facility (ATF) in the Brookhaven National Laboratory. Phase-contrast images are collected using in-line ... ...

    Abstract Quantitative phase retrieval is experimentally demonstrated using the Inverse Compton Scattering X-ray source available at the Accelerator Test Facility (ATF) in the Brookhaven National Laboratory. Phase-contrast images are collected using in-line geometry, with a single X-ray pulse of approximate duration of one picosecond. The projected thickness of homogeneous samples of various polymers is recovered quantitatively from the time-averaged intensity of transmitted X-rays. The data are in good agreement with the expectations showing that ATF Inverse Compton Scattering source is suitable for performing phase-sensitive quantitative X-ray imaging on the picosecond scale. The method shows promise for quantitative imaging of fast dynamic phenomena.
    MeSH term(s) Particle Accelerators ; Radiometry/methods ; Scattering, Radiation ; X-Rays
    Language English
    Publishing date 2011-01-31
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1491859-6
    ISSN 1094-4087 ; 1094-4087
    ISSN (online) 1094-4087
    ISSN 1094-4087
    DOI 10.1364/OE.19.002748
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Audio / Video: Creating Weed-Resistant Plant Communities Using Niche-Differentiated Nonnative Species

    Sheley, R.L / Carpinelli, M.F

    Rangeland ecology & management. 2005 Sept., v. 58, no. 5

    2005  

    Abstract: Enhancing desired species establishment and persistence is central to rehabilitating invasive plant-infested rangeland. We hypothesized that nonnative desired species (alfalfa Medicago sativa L., var. Arrow, intermediate wheatgrass Thinopyrum intermedium ...

    Abstract Enhancing desired species establishment and persistence is central to rehabilitating invasive plant-infested rangeland. We hypothesized that nonnative desired species (alfalfa Medicago sativa L., var. Arrow, intermediate wheatgrass Thinopyrum intermedium (Host) Barkworth & D.R. Dewey, and crested wheatgrass Agropyron cristatum (L.) Gaertn., var. Hycrest) increase as desired species richness within seeding mixture increases, and spotted knapweed (Centaurea maculosa Lam.) decrease as desirable species richness increases. We simultaneously tested the degree of niche differentiation among desired species. Experiments consisted of 7 seeding monocultures and combinations. Treatments were monocultures of each desired species (3 plots), all combinations of 2 desirable species (2 250 seeds . m(-2) per species; 3 plots), and 1 plot containing all 3 desirable species (1 500 seeds . m(-2) per species). Monocultures or mixtures were replicated 4 times by seeding each treatment with four background densities of spotted knapweed (1 250, 2 500, 3 750, and 7 500 seeds . m(-2); 7 treatments x 4 background densities = 28 plots). Analysis included regression with the 7 desired species monocultures or mixtures as a fixed effect and spotted knapweed sowing density as a continuous effect. All desired species established had either low or no negative influence on their neighbor, and differed in niche after 7 years of growing in association. Increasing richness of desired species led to increased productivity. Spotted knapweed density and biomass were low across all monocultures and mixtures at the productive site because shade and litter of desired species reduced light availability to the rosette-forming invasive weed. Combining crested wheatgrass and alfalfa provided lower spotted knapweed density and biomass more than did monocultures or grass mixtures because these 2 species appeared to occupy complementary niches. Increased niche occupation by nonnative desirable species may increase resource use and productivity, thus minimizing establishment and dominance of unwanted invasive plants during rehabilitation on arid, marginally productive rangeland sites.
    Keywords rangelands ; range management ; range improvement ; plant establishment ; light ; weed control ; plant communities ; botanical composition ; invasive species ; introduced plants ; Medicago sativa ; alfalfa ; Thinopyrum intermedium subsp. intermedium ; Agropyron cristatum ; forage grasses ; forage crops ; Centaurea stoebe subsp. micranthos ; broadleaf weeds ; ecological function ; functional diversity ; niches ; plant competition ; dry matter accumulation ; plant density ; Montana
    Language English
    Dates of publication 2005-09
    Size p. 480-480.
    Document type Article ; Audio / Video
    Note Summary in Spanish.
    ZDB-ID 2180183-6
    ISSN 1551-5028 ; 1550-7424
    ISSN (online) 1551-5028
    ISSN 1550-7424
    Database NAL-Catalogue (AGRICOLA)

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  9. Article ; Online: Anti-apoptotic gene Bcl2 is required for stapes development and hearing.

    Carpinelli, M R / Wise, A K / Arhatari, B D / Bouillet, P / Manji, S S M / Manning, M G / Cooray, A A / Burt, R A

    Cell death & disease

    2012  Volume 3, Page(s) e362

    Abstract: In this paper we describe novel and specific roles for the apoptotic regulators Bcl2 and Bim in hearing and stapes development. Bcl2 is anti-apoptotic while Bim is pro-apoptotic. Characterization of the auditory systems of mice deficient for these ... ...

    Abstract In this paper we describe novel and specific roles for the apoptotic regulators Bcl2 and Bim in hearing and stapes development. Bcl2 is anti-apoptotic while Bim is pro-apoptotic. Characterization of the auditory systems of mice deficient for these molecules revealed that Bcl2⁻/⁻ mice suffered severe hearing loss. This was conductive in nature and did not affect sensory cells of the inner ear, with cochlear hair cells and neurons present and functional. Bcl2⁻/⁻ mice were found to have a malformed, often monocrural, porous stapes (the small stirrup-shaped bone of the middle ear), but a normally shaped malleus and incus. The deformed stapes was discontinuous with the incus and sometimes fused to the temporal bones. The defect was completely rescued in Bcl2⁻/⁻Bim⁻/⁻ mice and partially rescued in Bcl2⁻/⁻Bim⁺/⁻ mice, which displayed high-frequency hearing loss and thickening of the stapes anterior crus. The Bcl2⁻/⁻ defect arose in utero before or during the cartilage stage of stapes development. These results implicate Bcl2 and Bim in regulating survival of second pharyngeal arch or neural crest cells that give rise to the stapes during embryonic development.
    MeSH term(s) Animals ; Apoptosis Regulatory Proteins/deficiency ; Apoptosis Regulatory Proteins/genetics ; Apoptosis Regulatory Proteins/metabolism ; Bcl-2-Like Protein 11 ; Ear, Middle/diagnostic imaging ; Ear, Middle/pathology ; Embryonic Development ; Genotype ; Hearing Loss, Conductive/metabolism ; Hearing Loss, Conductive/pathology ; Hearing Loss, High-Frequency/metabolism ; Hearing Loss, High-Frequency/pathology ; Membrane Proteins/deficiency ; Membrane Proteins/genetics ; Membrane Proteins/metabolism ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Proto-Oncogene Proteins/deficiency ; Proto-Oncogene Proteins/genetics ; Proto-Oncogene Proteins/metabolism ; Proto-Oncogene Proteins c-bcl-2/deficiency ; Proto-Oncogene Proteins c-bcl-2/genetics ; Proto-Oncogene Proteins c-bcl-2/metabolism ; Radiography ; Stapes/growth & development ; Stapes/metabolism ; Stapes/physiopathology
    Chemical Substances Apoptosis Regulatory Proteins ; Bcl-2-Like Protein 11 ; Bcl2l11 protein, mouse ; Membrane Proteins ; Proto-Oncogene Proteins ; Proto-Oncogene Proteins c-bcl-2
    Language English
    Publishing date 2012-08-09
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2541626-1
    ISSN 2041-4889 ; 2041-4889
    ISSN (online) 2041-4889
    ISSN 2041-4889
    DOI 10.1038/cddis.2012.100
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Audio / Video: Revegetating Russian Knapweed (Acroptilon Repens) Infestations Using Morphologically Diverse Species and Seedbed Preparation

    Mangold, J.M / Poulsen, C.L / Carpinelli, M.F

    Rangeland ecology & management. 2007 July, v. 60, issue no. 4

    2007  

    Abstract: Highly degraded pastures and rangeland dominated by Russian knapweed (Acroptilon repens [L.] DC) are often devoid of desirable plants. Control efforts may be ephemeral because propagules of desirable species are not available to reoccupy niches made ... ...

    Abstract Highly degraded pastures and rangeland dominated by Russian knapweed (Acroptilon repens [L.] DC) are often devoid of desirable plants. Control efforts may be ephemeral because propagules of desirable species are not available to reoccupy niches made available by control procedures. Establishing desirable, competitive plants is essential for enduring management and restoration of Russian knapweed and other weed-infested plant communities. The objective of this study was to investigate the effectiveness of revegetating Russian knapweed-infested pastures with 3 nonnative, morphologically diverse species following 1 of 3 seedbed preparation treatments. In successive years, at 2 similar sites in southeastern Oregon, we sprayed Russian knapweed with glyphosate, then prepared the seedbed by burning, tilling, or leaving untreated. Following seedbed preparation, we seeded a perennial forb (alfalfa [Medicago sativa L.]), a bunchgrass (Siberian wheatgrass [Agropyron fragile {Roth} P. Candargy subsp. sibericum {Willd.} Melderis]), and a sod-forming grass (pubescent wheatgrass [Elytrigia intermedia {Host} Nevski subsp. trichophora {Link} Tvzel]) in monocultures and 2- and 3-species mixtures. We measured Russian knapweed and seeded-species density 1 and 2 years following seeding. The forb-seeding treatment decreased reinvasion of Russia knapweed by 50%-60% at 1 site, but otherwise, seeding treatment had little influence on total seeded-species density or Russian knapweed density. Tilling generally resulted in a 35%-40% reduction in Russian knapweed density compared with the control and resulted in the highest establishment of seeded species. Variability in annual precipitation appeared to influence seeded-species establishment between the sites. Our results suggest shallow tilling (10-15 cm) followed by drill-seeding desirable forbs and grasses may provide the best results when revegetating Russian knapweed infestations. Follow-up management should include strategies to enhance desirable species production while minimizing Russian knapweed reinvasion.
    Keywords Rhaponticum repens ; noxious weeds ; introduced plants ; broadleaf weeds ; invasive species ; land restoration ; seedbed preparation ; functional diversity ; plant morphology ; pastures ; rangelands ; plant establishment ; plant competition ; plant communities ; glyphosate ; Medicago sativa ; forage legumes ; Agropyron fragile ; Thinopyrum intermedium subsp. intermedium ; forage grasses ; forage crops ; botanical composition ; plant density ; Oregon
    Language English
    Dates of publication 2007-07
    Size p. 378-385.
    Document type Article ; Audio / Video
    Note Summary in Spanish.
    ZDB-ID 2180183-6
    ISSN 1551-5028 ; 1550-7424
    ISSN (online) 1551-5028
    ISSN 1550-7424
    DOI 10.2111/1551-5028(2007)60[378:RRKARI]2.0.CO;2
    Database NAL-Catalogue (AGRICOLA)

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