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Título

Volatile compounds emitted by Gram-negative and Gram-positive bacteria and fungi promote growth and starch accumulation through cytokinin regulated processes

AutorBaslam, Marouane CSIC ORCID; Sánchez-López, Ángela María CSIC ORCID ; Diego, Nuria de; Li, Jun CSIC; Baroja-Fernández, Edurne CSIC ORCID CVN ; Bahaji, Abdellatif CSIC ORCID ; Ricarte-Bermejo, Adriana CSIC ORCID ; Sesma, María Teresa CSIC; Muñoz Pérez, Francisco José CSIC ORCID ; Nováck, Ondřej; Spíchal, Lukáš; Doležal, Karel; Pozueta Romero, Javier CSIC ORCID
Fecha de publicación15-sep-2015
CitaciónFresh & glycoprotein symposium (2015)
ResumenIt is known that volatile emissions from some beneficial rhizobacteria promote growth in plants. Here we show that volatile compounds emitted by the plant pathogen Alternaria alternata promote growth and the accumulation of exceptionally high levels of starch in leaves. Analyses of the volatile exometabolome of this species allowed us to identify several volatile compounds that promote plant growth and drastic metabolic changes. In Arabidopsis,this phenomenon (initially designated as MIVOISAP, for Microbial VOIatiles Induced Starch Accumulation Process) was accompanied by enhanced photosynthetic capacity, likely as a consequence of increased levels of plastidic type of cytokinins (CK). The magnitude of the phenomenon was low in mutants impaired in photoreceptors, CK receptors, plastidial NADP-thioredoxin reductase C(NTRC) and plastidic phosphoglucose isomerase. The overall data showed that (a) production of volatiles promoting plant growth is not restricted to beneficial rhizobacterial species, and (b) Arabidopsis MIVOISAP involves complex photocontrolled processes where in photoreceptors, NTRC-mediated changes in redox status of plastidial target proteins, CK production and signaling play important roles.
DescripciónPóster presentado en el Fresh & glycoprotein symposium, celebrado en Japón en septiembre de 2015.
URIhttp://hdl.handle.net/10261/142401
Aparece en las colecciones: (IDAB) Comunicaciones congresos




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