Ectopic expression of ARGOS8 reveals a role for ethylene in root-lodging resistance in maize.

ABSTRACT: Ethylene plays a critical role in many diverse processes in plant development. Recent studies have demonstrated that overexpression of the maize ARGOS8 gene reduces the plant's response to ethylene by decreasing ethylene signaling and enhances grain yield in transgenic maize plants. The objective of this study was to determine the effects of ethylene on the development of nodal roots, which are primarily responsible for root-lodging resistance in maize. Exogenous application of the ethylene precursor 1-aminocyclopropane-1-carboxylic acid (ACC) was found to promote the emergence of nodal roots. Transcriptome analysis of nodal tissues revealed that the expression of genes involved in metabolic processes and cell wall biogenesis was upregulated in response to ACC treatment, supporting the not

SUBMITTER: Shi J 

PROVIDER: S-EPMC7379592 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature