title: Ethylene acts as a negative regulator of glucose induced lateral root emergence in Arabidopsis.
abstract: Plants, being sessile organisms, are more exposed to the hazards of constantly changing environmental conditions globally. During the lifetime of a plant, the root system encounters various challenges such as obstacles, pathogens, high salinity, water logging, nutrient scarcity etc. The developmental plasticity of the root system provides brilliant adaptability to plants to counter the changes exerted by both external as well as internal cues and achieve an optimized growth status. Phytohormones are one of the major intrinsic factors regulating all aspects of plant growth and development both independently as well as through complex signal integrations at multiple levels. We have previously shown that glucose (Glc) and brassinosteroid (BR) signalings interact extensively to regulate lateral root (LR) development in Arabidopsis. (1) Auxin efflux as well as influx and downstream signaling components are also involved in Glc-BR regulation of LR emergence. Here, we provide evidence for involvement of ethylene signaling machinery downstream to Glc and BR in regulation of LR emergence.
authors.affiliation: a National Institute of Plant Genome Research ; Aruna Asaf Ali Marg; New Delhi , India.
authors.forename: Manjul
authors.initials: M
authors.lastname: Singh
authors.affiliation: a National Institute of Plant Genome Research ; Aruna Asaf Ali Marg; New Delhi , India.
authors.forename: Aditi
authors.initials: A
authors.lastname: Gupta
authors.affiliation: a National Institute of Plant Genome Research ; Aruna Asaf Ali Marg; New Delhi , India.
authors.forename: Ashverya
authors.initials: A
authors.lastname: Laxmi
mesh_terms: D017360:Arabidopsis / Q000187:drug effects / Q000235:genetics / Q000254:growth & development* / Q000528:radiation effects; D060406:Brassinosteroids / Q000494:pharmacology; D005030:Ethylenes / Q000494:pharmacology*; D018506:Gene Expression Regulation, Plant / Q000187:drug effects / Q000528:radiation effects; D005947:Glucose / Q000494:pharmacology*; D008027:Light; D018517:Plant Roots / Q000187:drug effects / Q000235:genetics / Q000254:growth & development* / Q000528:radiation effects; D015398:Signal Transduction / Q000187:drug effects / Q000528:radiation effects
chemical_list: D060406:Brassinosteroids; D005030:Ethylenes; C036216:ethylene; D005947:Glucose
keywords: arabidopsis; auxin; brassinosteroid; ethylene; glucose; lateral root