Data/hora: 01/06/2024 11:37:46

Biblioteca(s): | Embrapa Amapá.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | B - 1
Data corrente: | 04/10/2011
Data da última atualização: | 04/10/2011
Autoria: | CANGAHUALA-INOCENTE, G. C.; SILVA, M. F. da; JOHNSON, J.-M.; MANGA, A.; VAN TUINEN, D.; HENRY, C.; LOVATO, P. E.; DUMAS-GAUDOT, E.
Afiliação: | Maguida Fabiana da Silva, CAPF-AP.
Título: | Arbuscular mycorrhizal symbiosis elicits proteome responses opposite of P-starvation in SO4 grapevine rootstock upon root colonisation with two Glomus species.
Ano de publicação: | 2011
Fonte/Imprenta: | Mycorrhiza, Berlin, v. 21, n. 6, p. 471-493, Jan. 2011.
Idioma: | Inglês
Conteúdo: | Although plant biotisation with arbuscular mycorrhizal fungi (AMF) is a promising strategy for improving plant health, a better knowledge regarding the molecular mechanisms involved is required. In this context, we sought to analyse the root proteome of grapevine rootstock Selection Oppenheim 4 (SO4) upon colonisation with two AMF. As expected, AMF colonisation stimulates plant biomass. At the proteome level, changes in protein amounts due to AMF colonisation resulted in 39 differentially accumulated two-dimensional electrophoresis spots in AMF roots relative to control. Out of them, 25 were coidentified in SO4 roots upon colonisation by Glomus irregulare and Glomus mosseae supporting the existence of conserved plant responses to AM symbiosis in a woody perennial species. Among the 18 proteins whose amount was reduced in AMF-colonised roots were proteins involved in glycolysis, protein synthesis and fate, defence and cell rescue, ethylene biosynthesis and purine and pyrimi- dine salvage degradation. The six co-identified proteins whose amount was increased had functions in energy production, signalling, protein synthesis and fate including proteases. Altogether these data confirmed that a part of the accommodation program of AMF previously characterized in annual plants is maintained within roots of the SO4 rootstock cuttings. Nonetheless, particular responses also occurred involving proteins of carbon metabolism, development and root architecture, defence and cell rescue, anthocyanin biosynthesis and P remobilization, previously reported as induced upon P-starvation. This suggests the occurrence of P reprioritization upon AMF colonization in a woody perennial plant species with agronomical interest.
Thesagro: | Fungo; Planta; Praga de planta.
Categoria do assunto: | --
Registro original: | Embrapa Amapá (CPAF-AP)
Exemplares: | CPAF-AP - (15437-1) - UPC - AP - DD -  -  -  - DIS