LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 21

Search options

  1. Article ; Online: Pioneer Tree

    Bento, Ricardo Aparecido / de Novais, Cândido Barreto / Saggin-Júnior, Orivaldo José / de Oliveira, Luiz Antonio / Sampaio, Paulo de Tarso Barbosa

    Journal of fungi (Basel, Switzerland)

    2023  Volume 9, Issue 5

    Abstract: ... Bellucia ... ...

    Abstract Bellucia imperialis
    Language English
    Publishing date 2023-05-02
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2784229-0
    ISSN 2309-608X ; 2309-608X
    ISSN (online) 2309-608X
    ISSN 2309-608X
    DOI 10.3390/jof9050540
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article: Sewage Sludge Compared with Other Substrates in the Inoculation, Growth, and Tolerance to Water Stress of Samanea saman

    Abaurre, Gustavo Wyse / Alonso, Jorge Makhlouta / Saggin Júnior, Orivaldo José / de Faria, Sergio Miana

    Water. 2021 May 07, v. 13, no. 9

    2021  

    Abstract: This study evaluated the initial growth and tolerance to water stress after planting Samanea saman seedlings produced with different substrates and inoculation patterns. The experiment used a factorial design (3 × 3), with three substrates: standard (67% ...

    Abstract This study evaluated the initial growth and tolerance to water stress after planting Samanea saman seedlings produced with different substrates and inoculation patterns. The experiment used a factorial design (3 × 3), with three substrates: standard (67% subsoil + 33% cattle manure), a commercial substrate (composed mainly of peat), and treated sewage sludge; and three inoculation patterns: control (no inoculation), fertilized (no inoculation + chemical fertilization), and inoculation with nitrogen-fixing bacteria and arbuscular mycorrhizal fungi. The seedlings were planted in plastic pots inside a greenhouse. They received irrigation after planting and were submitted to water deficit for 35 days, followed by rehydration for 31 days. The inoculation promoted higher height and biomass for seedlings produced in the standard substrate. In the sludge, the roots biomass decreased when fertilized or inoculated. Seedlings grown in sludge showed higher height and biomass before planting and at the end of the experiment. Although, after rehydration, the height increment was similar for the sludge and the standard substrate. Seedlings grown with the commercial substrate are not recommended for planting sites subjected to water deficit. The standard substrate with inoculation and the sludge without inoculation or fertilization produced seedlings that showed better recovery and growth after water deficit.
    Keywords Samanea saman ; biomass ; cattle manure ; greenhouses ; irrigation ; nitrogen fixation ; peat ; rehydration ; sewage sludge ; sewage treatment ; subsoil ; vesicular arbuscular mycorrhizae ; water ; water stress
    Language English
    Dates of publication 2021-0507
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2521238-2
    ISSN 2073-4441
    ISSN 2073-4441
    DOI 10.3390/w13091306
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  3. Article: Substrates for the production of Samanea saman (Jacq.) Merr seedlings inoculated with nitrogen-fixing bacteria and arbuscular mycorrhizal fungi

    Abaurre, Gustavo Wyse / Saggin Júnior, Orivaldo José / Schäfer, Gilmar / de Faria, Sergio Miana

    Symbiosis. 2020 Dec., v. 82, no. 3

    2020  

    Abstract: Samanea saman (Jacq.) Merr is a tree species widely used in forest restoration plantations and its symbiosis with nitrogen-fixing bacteria (NFB) and arbuscular mycorrhizal fungi (AMF) can promote seedling formation and establishment and growth in the ... ...

    Abstract Samanea saman (Jacq.) Merr is a tree species widely used in forest restoration plantations and its symbiosis with nitrogen-fixing bacteria (NFB) and arbuscular mycorrhizal fungi (AMF) can promote seedling formation and establishment and growth in the field. The growth of S. saman seedlings inoculated with nitrogen-fixing bacteria and arbuscular mycorrhizal fungi grown on nine different substrates were evaluated in a greenhouse in this study. Seedling growth was promoted in substrates with lower bulk density and pH and higher total porosity, air-filled porosity and available Mg content. The nodulation of NFB was favored in the substrates with more available Mg, and AMF colonization and sporulation was favored in the substrates with a higher percentage of water buffering capacity. Seedlings produced on commercial substrates based on peat and pine bark showed superior growth. The peat-based “Carolina Soil™ electrical conductivity (EC) 0.7” favored nodulation, while the sewage sludge substrates and clayey subsoil mixture plus 10% poultry litter (V:V) promoted mycorrhizal colonization and sporulation.
    Keywords Samanea saman ; bark ; bulk density ; electrical conductivity ; forest restoration ; greenhouses ; nitrogen fixation ; nodulation ; pH ; peat ; porosity ; poultry manure ; seedling growth ; seedlings ; sewage sludge ; sporulation ; subsoil ; trees ; vesicular arbuscular mycorrhizae
    Language English
    Dates of publication 2020-12
    Size p. 157-163.
    Publishing place Springer Netherlands
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2535332-9
    ISSN 1878-7665 ; 0334-5114
    ISSN (online) 1878-7665
    ISSN 0334-5114
    DOI 10.1007/s13199-020-00707-7
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  4. Article ; Online: Arbuscular mycorrhizal fungi community in coffee agroforestry, consortium and monoculture systems.

    Barros, Welluma T / Barreto-Garcia, Patrícia A B / Saggin Júnior, Orivaldo José / Scoriza, Rafael N / Silva, Maicon S DA

    Anais da Academia Brasileira de Ciencias

    2022  Volume 94, Issue 3, Page(s) e20201228

    Abstract: Understanding the effects of different production systems on arbuscular mycorrhizal fungi (AMF) can help to interpret interactions between their components and to define management strategies. As a result, our study was conducted on soils under three ... ...

    Abstract Understanding the effects of different production systems on arbuscular mycorrhizal fungi (AMF) can help to interpret interactions between their components and to define management strategies. As a result, our study was conducted on soils under three coffee production systems (one homogeneous and two heterogeneous) and in a native forest located in the Bahia state, Brazil. This study aimed to answer the following questions: 1) Does the organization and management of the coffee production system affect the occurrence and diversity of AMF?; and 2) Is the seasonality effect similar between systems? To do so, soil samples (0-10 cm depth) were collected at two times of the year (rainy and dry). Number of spores (NS) and average richness did not show differences between the systems, only between seasons. There was a reduction in NS in the dry season (1.4 and 2.7 spores g-1 soil) in relation to the rainy season (3.8 to 12.5 spores g-1 soil). The influence of coffee production systems was observed in the presence and absence of some AMF species. The AMF community was shown to be related to the plant species composition of the system, which was reflected in the dissimilarity of heterogeneous systems in relation to the coffee monoculture system.
    MeSH term(s) Coffee ; Forests ; Fungi ; Mycorrhizae ; Plant Roots/microbiology ; Soil ; Soil Microbiology
    Chemical Substances Coffee ; Soil
    Language English
    Publishing date 2022-06-27
    Publishing country Brazil
    Document type Journal Article
    ZDB-ID 2046885-4
    ISSN 1678-2690 ; 0001-3765
    ISSN (online) 1678-2690
    ISSN 0001-3765
    DOI 10.1590/0001-3765202220201228
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Association of mycoheterotrophic Gentianaceae with specific Glomus lineages.

    Braga, João Gabriel Barbosa / de Novais, Cândido Barreto / Diniz, Priscila Pereira / da Silva Aragão, Osnar Obede / Saggin Júnior, Orivaldo José / da Conceição Jesus, Ederson

    Mycorrhiza

    2023  Volume 33, Issue 4, Page(s) 249–256

    Abstract: Some plant species took an alternative evolutionary pathway in which they lost their photosynthetic capacity to depend exclusively on carbon supplied by arbuscular mycorrhizal fungi (AMF) in an association called mycoheterotrophy. Among them is Voyriella ...

    Abstract Some plant species took an alternative evolutionary pathway in which they lost their photosynthetic capacity to depend exclusively on carbon supplied by arbuscular mycorrhizal fungi (AMF) in an association called mycoheterotrophy. Among them is Voyriella parviflora, a species of the family Gentianaceae, which is found in tropical regions such as the Amazon basin. Here, we assessed the identity of AMF symbionts associated with this species. DNA was isolated from eight Gentianaceae specimens and from litter and surrounding roots of photosynthetic plants. The atp1 gene was amplified by Sanger sequencing to determine the taxonomic affiliation of the mycoheterotrophic plants. A 280 bp region of the 18S rRNA gene of AMF was amplified with primers NS31/AML2 by high-throughput sequencing. The mycoheterotrophic specimens were assigned to V. parviflora with a bootstrap support of 72%. Glomus was the most abundant AMF genus, both in the mycoheterotrophic plants and in the litter and roots of photosynthetic plants. In addition, a few Glomus genotypes were abundantly enriched in the mycoheterotrophic plants, with only a few specimens colonized by Gigaspora, Acaulospora, and Scutellospora in a low proportion. These genotypes formed a cluster within a larger clade, suggesting that V. parviflora shows a preferential association with a narrow Glomus lineage which is not phylogenetically close to a previously identified V. parviflora's associated lineage. Furthermore, detecting fungi from other families suggests that V. parviflora is colonized by other genera, although with low frequency. These findings provide new insights into the association between AMF and mycoheterotrophic species and highlight the importance of considering trap culture-independent approaches in understanding this symbiosis.
    MeSH term(s) Mycorrhizae/genetics ; Phylogeny ; Gentianaceae ; Glomeromycota/genetics ; Biological Evolution ; Plant Roots/microbiology ; Plants/microbiology
    Language English
    Publishing date 2023-07-14
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1087945-6
    ISSN 1432-1890 ; 0940-6360
    ISSN (online) 1432-1890
    ISSN 0940-6360
    DOI 10.1007/s00572-023-01121-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article: Dark Septate Endophytic Fungi Associated with Sugarcane Plants Cultivated in São Paulo, Brazil

    Fors, Rosalba Ortega / Patreze, Camila Maistro / Louro Berbara, Ricardo Luis / Carbone Carneiro, Marco Aurélio / Saggin-Júnior, Orivaldo José

    Diversity. 2020 Sept. 14, v. 12, no. 9

    2020  

    Abstract: Dark septate endophytes (DSEs) constitute a polyphyletic group within the Ascomycota, with global distribution and a wide range of host plant species. The present study evaluated the diversity of DSE in sugarcane roots of the varieties RB867515, RB966928, ...

    Abstract Dark septate endophytes (DSEs) constitute a polyphyletic group within the Ascomycota, with global distribution and a wide range of host plant species. The present study evaluated the diversity of DSE in sugarcane roots of the varieties RB867515, RB966928, and RB92579, and four varieties of not commercialized energy cane. A total of 16 DSE strains were isolated, mostly from the varieties RB966928 and RB867515, with six and five isolates, respectively. Just one of the four energy cane varieties had fungi with DSE appearance. The analyses of the DNA sequences from the internal transcribed spacer (ITS) and the large subunit (LSU), in association with the micromorphology of the isolates, allowed the differentiation of the 16 isolates in at least five species, within the families Periconiaceae, Pleosporaceae, Lentitheciaceae, Vibrisseaceae, and Apiosporaceae and the orders Pleosporales, Helotiales, and Xylariales. The order Pleosporales represented 80% of the isolates, and the species Periconia macrospinosa, with six isolates, accounted for the highest isolation frequency. The results confirm the natural occurrence of the DSE symbiosis in sugarcane varieties and the generalist character of these fungi as some of the detected species have already been reported associated with other host plants, ecosystems, and regions of the world.
    Keywords Apiosporaceae ; Periconia ; Pleosporaceae ; Vibrisseaceae ; Xylariales ; commercialization ; ecosystems ; endophytes ; energy cane ; fungi ; geographical distribution ; host plants ; internal transcribed spacers ; microstructure ; polyphyly ; ribosomal DNA ; roots ; sugarcane ; symbiosis ; Brazil
    Language English
    Dates of publication 2020-0914
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2518137-3
    ISSN 1424-2818
    ISSN 1424-2818
    DOI 10.3390/d12090351
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  7. Article ; Online: Development of a taxon-discriminating molecular marker to trace and quantify a mycorrhizal inoculum in roots and soils of agroecosystems.

    Rodríguez-Yon, Yakelin / Maistro-Patreze, Camila / Saggin-Junior, Orivaldo Jose / Rivera, Ramón Antonio / Quiñones, Madelaine / Haesaert, Geert / van Tuinen, Diederik

    Folia microbiologica

    2021  Volume 66, Issue 3, Page(s) 371–384

    Abstract: Crop inoculation with Glomus cubense isolate (INCAM-4, DAOM-241198) promotes yield in banana, cassava, forages, and others. Yield improvements range from 20 to 80% depending on crops, nutrient supply, and edaphoclimatic conditions. However, it is ... ...

    Abstract Crop inoculation with Glomus cubense isolate (INCAM-4, DAOM-241198) promotes yield in banana, cassava, forages, and others. Yield improvements range from 20 to 80% depending on crops, nutrient supply, and edaphoclimatic conditions. However, it is difficult to connect yield effects with G. cubense abundance in roots due to the lack of an adequate methodology to trace this taxon in the field. It is necessary to establish an accurate evaluation framework of its contribution to root colonization separated from native arbuscular mycorrhizal fungi (AMF). A taxon-discriminating primer set was designed based on the ITS nrDNA marker and two molecular approaches were optimized and validated (endpoint PCR and quantitative real-time PCR) to trace and quantify the G. cubense isolate in root and soil samples under greenhouse and environmental conditions. The detection limit and specificity assays were performed by both approaches. Different 18 AMF taxa were used for endpoint PCR specificity assay, showing that primers specifically amplified the INCAM-4 isolate yielding a 370 bp-PCR product. In the greenhouse, Urochloa brizantha plants inoculated with three isolates (Rhizophagus irregularis, R. clarus, and G. cubense) and environmental root and soil samples were successfully traced and quantified by qPCR. The AMF root colonization reached 41-70% and the spore number 4-128 per g of soil. This study demonstrates for the first time the feasibility to trace and quantify the G. cubense isolate using a taxon-discriminating ITS marker in roots and soils. The validated approaches reveal their potential to be used for the quality control of other mycorrhizal inoculants and their relative quantification in agroecosystems.
    MeSH term(s) Fungi/genetics ; Genetic Markers/genetics ; Glomeromycota/genetics ; Mycorrhizae/genetics ; Plant Roots/microbiology ; Poaceae/microbiology ; Polymerase Chain Reaction ; Soil Microbiology
    Chemical Substances Genetic Markers
    Language English
    Publishing date 2021-02-03
    Publishing country United States
    Document type Journal Article
    ZDB-ID 240503-9
    ISSN 1874-9356 ; 0015-5632
    ISSN (online) 1874-9356
    ISSN 0015-5632
    DOI 10.1007/s12223-020-00844-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article: Aggregation of a Ferruginous Nodular Gleysol in a pasture area in Cuba, under the influence of Arbuscular mycorrhizal fungi associated with hybrid Urochloa

    Barbosa, Marisângela Viana / Fundora, Andy Bernal / Silva, Aline Oliveira / Espinosa, Ramón Rivera / Saggin Júnior, Orivaldo José / Carbone Carneiro, Marco Aurélio

    Soil & tillage research. 2021 Apr., v. 208

    2021  

    Abstract: The objective of this study was to evaluate in the field the influence of different arbuscular mycorrhizal fungi (AMF) inoculated in a pasture area of hybrid Urochloa (cv. CIAT BR 02/1752 “Caymam Pasture”) regarding the stability of aggregates of a ... ...

    Abstract The objective of this study was to evaluate in the field the influence of different arbuscular mycorrhizal fungi (AMF) inoculated in a pasture area of hybrid Urochloa (cv. CIAT BR 02/1752 “Caymam Pasture”) regarding the stability of aggregates of a Ferruginous Nodular Gleysol in Cuba. The experiment was conducted at the Pasture and Forage Experimental Station in Cuba (22°39′58.77″ N and 80°31′06.35″ W), using Urochloa hybrid, inoculated with three strains of AMF EcoMic® (Glomus cubense, Funneliformis mosseae and Rhizoglomus irregularis). The chosen design was in plots subdivided over time, with four treatments: three combined inoculations + non-inoculated treatment and two evaluation times (at 140 and 876 days after sowing). The number of spores, glomalin-related soil protein production, the quantification of total extraradicular mycelia, the structural stability coefficient of the soil (dry and wet) and the Soil Structural Stability Index were all evaluated. Greater stability of the aggregates was verified in dry sieving at 140 and 876 days of cultivation, however, influence of inoculation was only observed at 876 days. On the other hand, less stability was found for aggregates immersed in water. The effect of inoculation on soil aggregates can be associated with glomalin increments at 140 days, which has a cementing and cumulative character in the soil, and the length of mycelia at 876 days, which acts in the entanglement of mineral and organic soil particles, favoring the aggregation. Inoculation with AMF associated with the roots of hybrid Urochloa contributed to the best aggregate stability index at 876 days of cultivation, with an emphasis on the species G. cubense, which also showed greater competitiveness with a greater number of spores over time. Inoculation and/or soil management aimed at increasing the infectious potential of AMF is of great relevance for the formation and stability of soil aggregates in these grazing areas.
    Keywords Gleysols ; Urochloa ; aggregate stability ; glomalin ; hybrids ; mycelium ; pastures ; protein synthesis ; research ; tillage ; vesicular arbuscular mycorrhizae ; Cuba
    Language English
    Dates of publication 2021-04
    Publishing place Elsevier B.V.
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 406698-4
    ISSN 0167-1987
    ISSN 0167-1987
    DOI 10.1016/j.still.2020.104905
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  9. Article: Development of a taxon-discriminating molecular marker to trace and quantify a mycorrhizal inoculum in roots and soils of agroecosystems

    Rodríguez-Yon, Yakelin / Maistro-Patreze, Camila / Saggin-Junior, Orivaldo Jose / Rivera, Ramón Antonio / Quiñones, Madelaine / Haesaert, Geert / van Tuinen, Diederik

    Folia microbiologica. 2021 June, v. 66, no. 3

    2021  

    Abstract: Crop inoculation with Glomus cubense isolate (INCAM-4, DAOM-241198) promotes yield in banana, cassava, forages, and others. Yield improvements range from 20 to 80% depending on crops, nutrient supply, and edaphoclimatic conditions. However, it is ... ...

    Abstract Crop inoculation with Glomus cubense isolate (INCAM-4, DAOM-241198) promotes yield in banana, cassava, forages, and others. Yield improvements range from 20 to 80% depending on crops, nutrient supply, and edaphoclimatic conditions. However, it is difficult to connect yield effects with G. cubense abundance in roots due to the lack of an adequate methodology to trace this taxon in the field. It is necessary to establish an accurate evaluation framework of its contribution to root colonization separated from native arbuscular mycorrhizal fungi (AMF). A taxon-discriminating primer set was designed based on the ITS nrDNA marker and two molecular approaches were optimized and validated (endpoint PCR and quantitative real-time PCR) to trace and quantify the G. cubense isolate in root and soil samples under greenhouse and environmental conditions. The detection limit and specificity assays were performed by both approaches. Different 18 AMF taxa were used for endpoint PCR specificity assay, showing that primers specifically amplified the INCAM-4 isolate yielding a 370 bp-PCR product. In the greenhouse, Urochloa brizantha plants inoculated with three isolates (Rhizophagus irregularis, R. clarus, and G. cubense) and environmental root and soil samples were successfully traced and quantified by qPCR. The AMF root colonization reached 41–70% and the spore number 4–128 per g of soil. This study demonstrates for the first time the feasibility to trace and quantify the G. cubense isolate using a taxon-discriminating ITS marker in roots and soils. The validated approaches reveal their potential to be used for the quality control of other mycorrhizal inoculants and their relative quantification in agroecosystems.
    Keywords Glomus ; Rhizophagus irregularis ; Urochloa brizantha ; agroecosystems ; bananas ; cassava ; detection limit ; genetic markers ; greenhouses ; inoculum ; oligodeoxyribonucleotides ; quality control ; quantitative polymerase chain reaction ; soil ; spores ; vesicular arbuscular mycorrhizae
    Language English
    Dates of publication 2021-06
    Size p. 371-384.
    Publishing place Springer Netherlands
    Document type Article
    ZDB-ID 240503-9
    ISSN 1874-9356 ; 0015-5632
    ISSN (online) 1874-9356
    ISSN 0015-5632
    DOI 10.1007/s12223-020-00844-y
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  10. Article: Arbuscular mycorrhizal fungi and humic substances increased the salinity tolerance of rice plants

    Silva, Hellen Fernanda Oliveira da / Huertas Tavares, Orlando Carlos / Silva, Lucas de Souza da / Zonta, Everaldo / Silva, Eliane Maria Ribeiro da / Saggin Júnior, Orivaldo José / Nobre, Camila Pinheiro / Berbara, Ricardo Luis Louro / García, Andrés Calderín

    Biocatalysis and agricultural biotechnology. 2022 Aug. 23,

    2022  

    Abstract: Salinity induces salt uptake by plant cells, which hinders plant growth and results in decreased agronomic crop yields. Humic substances (HSs) have been shown to be ecological agricultural alternatives to stimulate plant development under both normal and ...

    Abstract Salinity induces salt uptake by plant cells, which hinders plant growth and results in decreased agronomic crop yields. Humic substances (HSs) have been shown to be ecological agricultural alternatives to stimulate plant development under both normal and abiotic stress conditions. At the same time, arbuscular mycorrhizal fungi (AMF) provide nutrients and provide salinity tolerance through the osmotic balance between Na⁺ and K⁺. This study aimed to evaluate the effects of the combination of AMF and HSs on the growth of rice plants under salinity stress. The experiment was carried out in a greenhouse: Pots filled with sand were treated with a nutrient solution (as a control), 40 mg HS L⁻¹ or 200 mM NaCl and inoculated with Acaulospora mellea, Glomus formosanum, Rhizoglomus clarum, or Glomus spp. The HSs and AMF stimulated biomass production and root growth compared to those of uninoculated plants. The leaf P content increased in the presence of HSs and AMF under stress conditions. The sodium concentration was higher in the shoots of plants not treated with HSs than in those of the control plants. The potassium concentration decreased in the shoots under saline conditions. HSs and AMF alone or in combination promoted mycorrhizal colonization, especially that of A. mellea. AMF and HSs stimulated plant growth, improved root morphological characteristics, and increased P accumulation in rice plants under salt-stress conditions. These results support the production of biofertilizers with protective effects for sustainable agriculture.
    Keywords Acaulospora ; Glomus ; agricultural biotechnology ; biocatalysis ; biofertilizers ; biomass production ; greenhouses ; leaves ; nutrient solutions ; plant development ; potassium ; rice ; root growth ; salinity ; salt stress ; salt tolerance ; sand ; sodium ; sustainable agriculture ; vesicular arbuscular mycorrhizae
    Language English
    Dates of publication 2022-0823
    Publishing place Elsevier Ltd
    Document type Article
    Note Pre-press version
    ZDB-ID 2642052-1
    ISSN 1878-8181
    ISSN 1878-8181
    DOI 10.1016/j.bcab.2022.102472
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

To top