Ethylene signaling via Ethylene Response Factors (ERFs) modifies wood development in hybrid aspen

Ethylene signaling via Ethylene Response Factors (ERFs) modifies wood development in hybrid aspen

Background The phytohormone ethylene (ET) has the potential to regulate secondary growth of plants and wood formation in trees. Application of exogenous ethylene or its in planta precursor, 1-aminocyclopropane-1-carboxylic acid (ACC), to wood forming tissues of hybrid aspen (Populus tremula x Populus tremuloides) enhances xylem growth [1]. In the same study it was demonstrated that stimulation ...

Ethylene response factors in jasmonate signaling and defense response.

Plants are continually exposed to potential pathogens and herbivores and have evolved defenses to counter such opportunistic invasions, including both physical (i.e. waxy cuticles, cell walls) and biochemical (i.e. defense compounds) barriers (for review, see Grennan, 2006). A key component to mounting an effective response, which may involve a change in gene expression, is an efficient signali...

Ethylene enhances water transport in hypoxic aspen.

Water transport was examined in solution culture grown seedlings of aspen (Populus tremuloides) after short-term exposures of roots to exogenous ethylene. Ethylene significantly increased stomatal conductance, root hydraulic conductivity (L(p)), and root oxygen uptake in hypoxic seedlings. Aerated roots that were exposed to ethylene also showed enhanced L(p). An ethylene action inhibitor, silve...

title : Ethylene signaling induces gelatinous layers with typical features of tension 1 wood in hybrid

Derepression of ethylene-stabilized transcription factors (EIN3/EIL1) mediates jasmonate and ethylene signaling synergy in Arabidopsis.

Jasmonate (JA) and ethylene (ET) are two major plant hormones that synergistically regulate plant development and tolerance to necrotrophic fungi. Both JA and ET induce the expression of several pathogenesis-related genes, while blocking either signaling pathway abolishes the induction of these genes by JA and ET alone or in combination. However, the molecular basis of JA/ET coaction and signal...