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Article ; Online: Evaluation of Vetiver Volatile Compound Production under Aeroponic-Grown Conditions for the Perfume Industry.

Gavira, Carole / Watteau, Françoise / Lainé, Jean-Marc / Bourgaud, Frédéric / Legendre, Laurent

2022 Volume 27, Issue 6

Abstract: Vetiver ( ...

Abstract	Vetiver (
MeSH term(s)	Chrysopogon/chemistry ; Gas Chromatography-Mass Spectrometry/methods ; Oils, Volatile/chemistry ; Perfume ; Solid Phase Microextraction/methods
Chemical Substances	Oils, Volatile ; Perfume
Language	English
Publishing date	2022-03-17
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	1413402-0
ISSN	1420-3049 ; 1431-5165 ; 1420-3049
ISSN (online)	1420-3049
ISSN	1431-5165 ; 1420-3049
DOI	10.3390/molecules27061942
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Article ; Online: In vitro plant regeneration and Agrobacterium-mediated genetic transformation of a carnivorous plant, Nepenthes mirabilis.

Miguel, Sissi / Michel, Cindy / Biteau, Flore / Hehn, Alain / Bourgaud, Frédéric

Scientific reports

2020 Volume 10, Issue 1, Page(s) 17482

Abstract: In nutrient-poor habitats, carnivorous plants have developed novel feeding strategies based on the capture and digestion of prey and the assimilation of prey-derived nutrients by specialized traps. The Nepenthes genus, comprising nearly 160 species, ... ...

Abstract	In nutrient-poor habitats, carnivorous plants have developed novel feeding strategies based on the capture and digestion of prey and the assimilation of prey-derived nutrients by specialized traps. The Nepenthes genus, comprising nearly 160 species, presents a remarkable pitcher-shaped trap, leading to great interest among biologists, but the species of this genus are listed as threatened. In this work, we developed a protocol for reproducing Nepenthes mirabilis through shoot regeneration from calli. The cultivation of stem segments of N. mirabilis on MS medium containing thidiazuron induced organogenic calli after 10 weeks. Subcultured calli exposed to 6-benzylaminopurine showed shoot regeneration in 3 weeks with considerable yields (143 shoots/g of calli). Excised shoots transferred to medium with indole-3-butyric acid allowed rooting in 4 weeks, and rooted plantlets had a 100% survival rate. Based on this method, we also developed an Agrobacterium-mediated genetic transformation protocol using calli as explants and ipt as a positive method of selection. Twelve weeks post infection, regenerated shoots were observed at the surface of calli. Their transgenic status was confirmed by PCR and RT-PCR. In conclusion, this study provides an efficient method for regenerating Nepenthes and the first protocol for its stable genetic transformation, a new tool for studying carnivory.
MeSH term(s)	Agrobacterium/genetics ; Benzyl Compounds/chemistry ; Biotechnology ; Carnivorous Plant/genetics ; Carnivorous Plant/growth & development ; Caryophyllales/genetics ; Caryophyllales/growth & development ; Indoles/chemistry ; Phenylurea Compounds/chemistry ; Plant Shoots/growth & development ; Plants, Genetically Modified/growth & development ; Purines/chemistry ; Regeneration ; Thiadiazoles/chemistry ; Tissue Culture Techniques ; Transformation, Genetic
Chemical Substances	Benzyl Compounds ; Indoles ; Phenylurea Compounds ; Purines ; Thiadiazoles ; thidiazuron (0091WH7STF) ; indolebutyric acid (061SKE27JP) ; benzylaminopurine (KXG6A989PS)
Language	English
Publishing date	2020-10-15
Publishing country	England
Document type	Journal Article
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-020-74108-7
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Article ; Online: Emerging role of IκBζ in inflammation: Emphasis on psoriasis.

Gautam, Preeti / Maenner, Sylvain / Cailotto, Frédéric / Reboul, Pascal / Labialle, Stéphane / Jouzeau, Jean-Yves / Bourgaud, Frédéric / Moulin, David

Clinical and translational medicine

2022 Volume 12, Issue 10, Page(s) e1032

Abstract: Psoriasis is a chronic inflammatory disorder affecting skin and joints that results from immunological dysfunction such as enhanced IL-23 induced Th-17 differentiation. IkappaB-Zeta (IκBζ) is an atypical transcriptional factor of the IκB protein family ... ...

Abstract	Psoriasis is a chronic inflammatory disorder affecting skin and joints that results from immunological dysfunction such as enhanced IL-23 induced Th-17 differentiation. IkappaB-Zeta (IκBζ) is an atypical transcriptional factor of the IκB protein family since, contrary to the other family members, it positively regulates NF-κB pathway by being exclusively localized into the nucleus. IκBζ deficiency reduces visible manifestations of experimental psoriasis by diminishing expression of psoriasis-associated genes. It is thus tempting to consider IκBζ as a potential therapeutic target for psoriasis as well as for other IL23/IL17-mediated inflammatory diseases. In this review, we will discuss the regulation of expression of NFKBIZ and its protein IκBζ, its downstream targets, its involvement in pathogenesis of multiple disorders with emphasis on psoriasis and evidences supporting that inhibition of IκBζ may be a promising alternative to current therapeutic managements of psoriasis.
MeSH term(s)	Humans ; I-kappa B Proteins/genetics ; I-kappa B Proteins/metabolism ; Inflammation/genetics ; Inflammation/metabolism ; Interleukin-23 ; NF-kappa B/genetics ; NF-kappa B/metabolism ; Psoriasis/genetics ; Psoriasis/metabolism
Chemical Substances	I-kappa B Proteins ; Interleukin-23 ; NF-kappa B ; NFKBIZ protein, human
Language	English
Publishing date	2022-09-28
Publishing country	United States
Document type	Journal Article ; Review ; Research Support, Non-U.S. Gov't
ZDB-ID	2697013-2
ISSN	2001-1326 ; 2001-1326
ISSN (online)	2001-1326
ISSN	2001-1326
DOI	10.1002/ctm2.1032
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Article ; Online: Composition and functional comparison of vetiver root endophytic microbiota originating from different geographic locations that show antagonistic activity towards Fusarium graminearum.

Munakata, Yuka / Gavira, Carole / Genestier, Julie / Bourgaud, Frédéric / Hehn, Alain / Slezack-Deschaumes, Sophie

Microbiological research

2020 Volume 243, Page(s) 126650

Abstract: Given the current trend towards reducing the use of chemical controls in agriculture, microbial resources such as plant endophytes are being intensively investigated for traits that are conducive to plant protection. Among the various important target ... ...

Abstract	Given the current trend towards reducing the use of chemical controls in agriculture, microbial resources such as plant endophytes are being intensively investigated for traits that are conducive to plant protection. Among the various important target pathogens, Fusarium graminearum is a fungal pathogen of cereal crops that is responsible for severe yield losses and mycotoxin contamination in grains. In the present study, we investigated the bacterial endophytic communities from vetiver (Chrysopogon zizanioides (L.) Roberty) roots originating from 5 different geographic locations across Europe and Africa. This study relies on a global 16S metabarcoding approach and the isolation/functional characterization of bacterial isolates. The results we obtained showed that geographical location is a factor that influences the composition and relative abundance of root endophyte communities in vetiver. Three hundred eighty-one bacterial endophytes were isolated and assessed for their in vitro antagonistic activities towards F. graminearum mycelium growth. In total, 46 % of the isolates showed at least 50 % inhibitory activity against F. graminearum. The taxonomic identification of the bioactive isolates revealed that the composition of these functional culturable endophytic communities was influenced by the geographic origins of the roots. The selected communities consisted of 15 genera. Some endophytes in Bacillus, Janthinobacterium, Kosakonia, Microbacterium, Pseudomonas, and Serratia showed strong growth inhibition activity (≥70 %) against F. graminearum and could be candidates for further development as biocontrol agents.
MeSH term(s)	Antibiosis ; Bacteria/classification ; Bacteria/genetics ; Bacteria/isolation & purification ; Bacterial Physiological Phenomena ; Chrysopogon/microbiology ; Endophytes/classification ; Endophytes/genetics ; Endophytes/isolation & purification ; Endophytes/physiology ; Fusarium/growth & development ; Fusarium/physiology ; Microbiota ; Mycelium/growth & development ; Mycelium/physiology ; Phylogeny ; Plant Diseases/microbiology ; Plant Roots/microbiology
Language	English
Publishing date	2020-11-28
Publishing country	Germany
Document type	Journal Article
ZDB-ID	1189614-0
ISSN	1618-0623 ; 0944-5013
ISSN (online)	1618-0623
ISSN	0944-5013
DOI	10.1016/j.micres.2020.126650
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Article ; Online: Nepenthes: State of the art of an inspiring plant for biotechnologists.

Miguel, Sissi / Hehn, Alain / Bourgaud, Frédéric

Journal of biotechnology

2017 Volume 265, Page(s) 109–115

Abstract: Plant carnivory results from the adaptation of plants to their environment. The capture and digestion of preys, followed by their assimilation by the plant is a source of additional nutrients to overcome scarce nutrient in poor soils. Nepenthes are ... ...

Abstract	Plant carnivory results from the adaptation of plants to their environment. The capture and digestion of preys, followed by their assimilation by the plant is a source of additional nutrients to overcome scarce nutrient in poor soils. Nepenthes are highly studied carnivorous plants and have developed a number of ecological traits which have attracted the attention of plant biologists. Multiple adaptive strategies developed by these plants make them a source of inspiration for many applications ranging from therapeutic treatments to biocontrol solution in agriculture. The outstanding tissue organization of the digestive pitcher can help to create new and original materials usable in everyday life. In this review article, we propose a state of the art of the latest studies carried out on these particular plants and we establish a list of potential tracks for their exploitation.
MeSH term(s)	Animals ; Biotechnology ; Carnivory ; Caryophyllales ; Humans ; Pest Control, Biological
Language	English
Publishing date	2017-11-27
Publishing country	Netherlands
Document type	Journal Article ; Review
ZDB-ID	843647-2
ISSN	1873-4863 ; 0168-1656 ; 1389-0352
ISSN (online)	1873-4863
ISSN	0168-1656 ; 1389-0352
DOI	10.1016/j.jbiotec.2017.11.014
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Article ; Online: Identification and Quantification of Coumarins by UHPLC-MS in

Perkowska, Izabela / Siwinska, Joanna / Olry, Alexandre / Grosjean, Jérémy / Hehn, Alain / Bourgaud, Frédéric / Lojkowska, Ewa / Ihnatowicz, Anna

Molecules (Basel, Switzerland)

2021 Volume 26, Issue 6

Abstract: Coumarins are phytochemicals occurring in the plant kingdom, which biosynthesis is induced under various stress factors. They belong to the wide class of specialized metabolites well known for their beneficial properties. Due to their high and wide ... ...

Abstract	Coumarins are phytochemicals occurring in the plant kingdom, which biosynthesis is induced under various stress factors. They belong to the wide class of specialized metabolites well known for their beneficial properties. Due to their high and wide biological activities, coumarins are important not only for the survival of plants in changing environmental conditions, but are of great importance in the pharmaceutical industry and are an active source for drug development. The identification of coumarins from natural sources has been reported for different plant species including a model plant
MeSH term(s)	Arabidopsis/metabolism ; Chromatography, High Pressure Liquid ; Coumarins/analysis ; Coumarins/metabolism ; Mass Spectrometry ; Plant Roots/metabolism
Chemical Substances	Coumarins
Language	English
Publishing date	2021-03-23
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	1413402-0
ISSN	1420-3049 ; 1431-5165 ; 1420-3049
ISSN (online)	1420-3049
ISSN	1431-5165 ; 1420-3049
DOI	10.3390/molecules26061804
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Article: Collagenase and Tyrosinase Inhibitory Effect of Isolated Constituents from the Moss Polytrichum formosum

Marques, Raíssa Volpatto / Guillaumin, Agnès / Abdelwahab, Ahmed B. / Salwinski, Aleksander / Gotfredsen, Charlotte H. / Bourgaud, Frédéric / Enemark-Rasmussen, Kasper / Miguel, Sissi / Simonsen, Henrik Toft

Plants. 2021 June 22, v. 10, no. 7

2021

Abstract: Mosses from the genus Polytrichum have been shown to contain rare benzonaphthoxanthenones compounds, and many of these have been reported to have important biological activities. In this study, extracts from Polytrichum formosum were analyzed in vitro ... ...

Abstract	Mosses from the genus Polytrichum have been shown to contain rare benzonaphthoxanthenones compounds, and many of these have been reported to have important biological activities. In this study, extracts from Polytrichum formosum were analyzed in vitro for their inhibitory properties on collagenase and tyrosinase activity, two important cosmetic target enzymes involved respectively in skin aging and pigmentation. The 70% ethanol extract showed a dose-dependent inhibitory effect against collagenase (IC₅₀ = 4.65 mg/mL). The methanol extract showed a mild inhibitory effect of 44% against tyrosinase at 5.33 mg/mL. Both extracts were investigated to find the constituents having a specific affinity to the enzyme targets collagenase and tyrosinase. The known compounds ohioensin A (1), ohioensin C (3), and communin B (4), together with nor-ohioensin D (2), a new benzonaphthoxanthenone, were isolated from P. formosum. Their structures were determined by mass spectrometry and NMR spectroscopy. Compounds 1 (IC₅₀ = 71.99 µM) and 2 (IC₅₀ = 167.33 µM) showed inhibitory activity against collagenase. Compound 1 also exhibited inhibition of 30% against tyrosinase activity at 200 µM. The binding mode of the active compounds was theoretically generated by an in-silico approach against the 3D structures of collagenase and tyrosinase. These current results present the potential application from the moss P. formosum as a new natural source of collagenase and tyrosinase inhibitors.
Keywords	Polytrichum ; collagenase ; computer simulation ; dose response ; ethanol ; mass spectrometry ; methanol ; mosses and liverworts ; nuclear magnetic resonance spectroscopy ; pigmentation
Language	English
Dates of publication	2021-0622
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article
ZDB-ID	2704341-1
ISSN	2223-7747
ISSN	2223-7747
DOI	10.3390/plants10071271
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Anti-Inflammatory Activity of Bryophytes Extracts in LPS-Stimulated RAW264.7 Murine Macrophages.

Marques, Raíssa Volpatto / Sestito, Stefania Enza / Bourgaud, Frédéric / Miguel, Sissi / Cailotto, Frédéric / Reboul, Pascal / Jouzeau, Jean-Yves / Rahuel-Clermont, Sophie / Boschi-Muller, Sandrine / Simonsen, Henrik Toft / Moulin, David

Molecules (Basel, Switzerland)

2022 Volume 27, Issue 6

Abstract: Bryophytes produce rare and bioactive compounds with a broad range of therapeutic potential, and many species are reported in ethnomedicinal uses. However, only a few studies have investigated their potential as natural anti-inflammatory drug candidate ... ...

Abstract	Bryophytes produce rare and bioactive compounds with a broad range of therapeutic potential, and many species are reported in ethnomedicinal uses. However, only a few studies have investigated their potential as natural anti-inflammatory drug candidate compounds. The present study investigates the anti-inflammatory effects of thirty-two species of bryophytes, including mosses and liverworts, on Raw 264.7 murine macrophages stimulated with lipopolysaccharide (LPS) or recombinant human peroxiredoxin (hPrx1). The 70% ethanol extracts of bryophytes were screened for their potential to reduce the production of nitric oxide (NO), an important pro-inflammatory mediator. Among the analyzed extracts, two moss species significantly inhibited LPS-induced NO production without cytotoxic effects. The bioactive extracts of
MeSH term(s)	Animals ; Anti-Inflammatory Agents/metabolism ; Anti-Inflammatory Agents/pharmacology ; Bryophyta ; Humans ; Lipopolysaccharides/pharmacology ; Macrophages ; Mice ; Plant Extracts/metabolism ; Plant Extracts/pharmacology
Chemical Substances	Anti-Inflammatory Agents ; Lipopolysaccharides ; Plant Extracts
Language	English
Publishing date	2022-03-17
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	1413402-0
ISSN	1420-3049 ; 1431-5165 ; 1420-3049
ISSN (online)	1420-3049
ISSN	1431-5165 ; 1420-3049
DOI	10.3390/molecules27061940
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Article: Convergent evolution leading to the appearance of furanocoumarins in citrus plants

Limones-Mendez, Mariana / Dugrand-Judek, Audray / Villard, Cloé / Coqueret, Victoire / Froelicher, Yann / Bourgaud, Frédéric / Olry, Alexandre / Hehn, Alain

Plant science. 2020 Mar., v. 292

2020

Abstract: Furanocoumarins are defense molecules mainly described in four plant families that are phylogenetically distant. Molecular characterization of the biosynthetic pathway has been started for many years in Apiaceae and Rutaceae. The results obtained thus ... ...

Abstract	Furanocoumarins are defense molecules mainly described in four plant families that are phylogenetically distant. Molecular characterization of the biosynthetic pathway has been started for many years in Apiaceae and Rutaceae. The results obtained thus far in Apiaceae indicated a major role of cytochromes P450 (P450s) in the CYP71 family. In the present work, we describe the importance of another subfamily of P450s, CYP82D, identified by using a deep analysis of the citrus (Rutaceae) genome and microarray database. CYP82D64 is able to hydroxylate xanthotoxin to generate 5-OH-xanthotoxin. Minor and limited amino acid changes in the CYP82D64 coding sequence between Citrus paradisi and Citrus hystrix provide the enzyme in the latter with the ability to hydroxylate herniarin, but with low efficiency. The kinetic constants of the enzyme are consistent with those of other enzymes of this type in plants and indicate that it may be the physiological substrate. The activity of the enzyme is identical to that of CYP71AZ6 identified in parsnip, showing possible evolutionary convergence between these two families of plants. It is highly possible that these molecules are derived from the synthesis of ubiquitous coumarins throughout the plant kingdom.
Keywords	Apiaceae ; Citrus hystrix ; Citrus paradisi ; appearance (quality) ; biochemical pathways ; convergent evolution ; cytochrome P-450 ; databases ; enzyme activity ; enzymes ; genome ; methoxsalen ; microarray technology ; phylogeny ; synthesis
Language	English
Dates of publication	2020-03
Publishing place	Elsevier B.V.
Document type	Article
Note	NAL-light
ZDB-ID	742010-9
ISSN	1873-2259 ; 0168-9452
ISSN (online)	1873-2259
ISSN	0168-9452
DOI	10.1016/j.plantsci.2019.110392
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Article: Collagenase and Tyrosinase Inhibitory Effect of Isolated Constituents from the Moss

Marques, Raíssa Volpatto / Guillaumin, Agnès / Abdelwahab, Ahmed B / Salwinski, Aleksander / Gotfredsen, Charlotte H / Bourgaud, Frédéric / Enemark-Rasmussen, Kasper / Miguel, Sissi / Simonsen, Henrik Toft

Plants (Basel, Switzerland)

2021 Volume 10, Issue 7

Abstract: Mosses from the ... ...

Abstract	Mosses from the genus
Language	English
Publishing date	2021-06-22
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2704341-1
ISSN	2223-7747
ISSN	2223-7747
DOI	10.3390/plants10071271
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