P
Philippe Delavault
Researcher at University of Nantes
Publications - 66
Citations - 2017
Philippe Delavault is an academic researcher from University of Nantes. The author has contributed to research in topics: Orobanche & Parasitic plant. The author has an hindex of 25, co-authored 63 publications receiving 1698 citations.
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Journal ArticleDOI
Structure-Activity Relationship Studies of Strigolactone-Related Molecules for Branching Inhibition in Garden Pea: Molecule Design for Shoot Branching
François-Didier Boyer,Alexandre de Saint Germain,Jean-Paul Pillot,Jean-Bernard Pouvreau,Victor Xiao Chen,Suzanne Ramos,Arnaud Stévenin,Philippe Simier,Philippe Delavault,Jean-Marie Beau,Catherine Rameau +10 more
TL;DR: The synthesis of new SL analogs and the first study of SL structure-activity relationships for their hormonal activity in garden pea are reported, and it is established that the more active analog 23 with a dimethylbutenolide as the D-ring could be used to control the plant architecture without strongly favoring the germination of P. ramosa seeds.
Journal ArticleDOI
Some compatible Rhizobium leguminosarum strains in peas decrease infections when parasitised by Orobanche crenata
TL;DR: The involvement of these enzymes in pea resistance to crenate broomrape induced by the compatible rhizobia is suggested, suggesting management of Orobanche via crop selection based on these enzyme systems is a viable option.
Journal ArticleDOI
Ha-DEF1, a sunflower defensin, induces cell death in Orobanche parasitic plants.
Axel de Zélicourt,Patricia Letousey,Séverine Thoiron,Claire Campion,Philippe Simoneau,Khalil Elmorjani,Didier Marion,Philippe Simier,Philippe Delavault +8 more
TL;DR: Investigation of in vitro antifungal activity of Ha-DEF1 showed a strong inhibition on Saccharomyces cerevisiae growth linked to a membrane permeabilization, and a morphogenetic activity on Alternaria brassicicola germ tube development, as already reported for some other plant defensins.
Journal ArticleDOI
Germination stimulants of Phelipanche ramosa in the rhizosphere of Brassica napus are derived from the glucosinolate pathway.
Bathilde Auger,Jean-Bernard Pouvreau,Karinne Pouponneau,Kaori Yoneyama,Grégory Montiel,Bruno Le Bizec,Koichi Yoneyama,Philippe Delavault,Régine Delourme,Philippe Simier +9 more
TL;DR: Phelipanche ramosa germination was strongly and specifically triggered by isothiocyanates, indicating that 2-PEITC, in particular, plays a key role in the B. napus-P.
Journal ArticleDOI
PrCYP707A1, an ABA catabolic gene, is a key component of Phelipanche ramosa seed germination in response to the strigolactone analogue GR24
Marc-Marie Lechat,Jean-Bernard Pouvreau,Thomas Péron,Mathieu Gauthier,Grégory Montiel,Christophe Véronési,Yasushi Todoroki,Bruno Le Bizec,Fabrice Monteau,David Macherel,Philippe Simier,Séverine Thoiron,Philippe Delavault +12 more
TL;DR: Results demonstrate that P. ramosa seed dormancy release relies on ABA catabolism mediated by the GR24-dependent activation of PrCYP707A1, encoding an ABA 8'-hydroxylase.