Genetic evidence for natural product-mediated plant-plant allelopathy in rice (Oryza sativa).

ABSTRACT: • There is controversy as to whether specific natural products play a role in directly mediating antagonistic plant-plant interactions - that is, allelopathy. If proved to exist, such phenomena would hold considerable promise for agronomic improvement of staple food crops such as rice (Oryza sativa). • However, while substantiated by the presence of phytotoxic compounds at potentially relevant concentrations, demonstrating a direct role for specific natural products in allelopathy has been difficult because of the chemical complexity of root and plant litter exudates. This complexity can be bypassed via selective genetic manipulation to ablate production of putative allelopathic compounds, but such an approach previously has not been applied. • The rice diterpenoid momilactones provide an

SUBMITTER: Xu M 

PROVIDER: S-EPMC3257406 | biostudies-literature | 2012 Feb

REPOSITORIES: biostudies-literature