Phytohormone production by the arbuscular mycorrhizal fungus Rhizophagus irregularis.

ABSTRACT: Arbuscular mycorrhizal symbiosis is a mutualistic interaction between most land plants and fungi of the glomeromycotina subphylum. The initiation, development and regulation of this symbiosis involve numerous signalling events between and within the symbiotic partners. Among other signals, phytohormones are known to play important roles at various stages of the interaction. During presymbiotic steps, plant roots exude strigolactones which stimulate fungal spore germination and hyphal branching, and promote the initiation of symbiosis. At later stages, different plant hormone classes can act as positive or negative regulators of the interaction. Although the fungus is known to reciprocally emit regulatory signals, its potential contribution to the phytohormonal pool has received little atte

SUBMITTER: Pons S 

PROVIDER: S-EPMC7567356 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature