Ecophysiological Responses to Stresses in Plants: A General Approach

Abstract

Stress (abiotic and biotic) factors reflect and specify the plant morphology and called as "stress" and have negative effect(s) on growth, development, quality, quantity and can reduce average plant productivity by 65 to 87%, depending on the plants and stage(s) and also give various permanent or temporary damage(s) according to length of exposed period, violence/density, developmental stage, age, etc. Researches have revealed that despite the advanced technology levels the fundamental basis of stress have not been understood comprehensively. Firstly taken response(s) has/have not yet fully understood and secondly any "resistance" or "tolerance level of a variety/species" because of their complex structure(s). But, this point is clear that with the help or assistance of "multi-disciplinary" approaches, it will be able to get promising result(s) in near future. This review focuses some of the ecophysiological responses of plants to biotic and abiotic stresses.

Drought Sensitiveness on Forest Growth in Peninsular Spain and the Balearic Islands

“…In this respect, Zhao et al [24] found that drought is the leading cause of global NPP depletion. The eco-physiological impacts drought causes in vegetation are diverse [25], with some plant responses to drought stress related to stomata regulation, osmotic adjustment, and anti-oxidative defense [26]. However, reduction of photosynthesis is the ultimate impact of drought.…”

Plant Growth-Promoting Rhizobacteria (PGPR) as Biocontrol Agents for Viral Protection

“…Biotic and abiotic stresses badly affect the quantity, quality, and parameters of plant growth grounded on plant stages, where average plant productivity may be minimized between 65 and 87% (Gursoy et al 2012). Different viruses of plants have been reported globally and considered to be very important plant pathogens which are responsible for high economic losses of both quality and productivity of various crops (Balconi et al 2012).…”

The General Transcription Repressor TaDr1 Is Co-expressed With TaVrn1 and TaFT1 in Bread Wheat Under Drought

“…In bread wheat, the TaVrn1 gene was mapped to the long arm of chromosome 5A, tightly linked with the Q gene controlling spike morphology (Kato et al, 1998). The Q gene belongs to the large AP2/ERF family of TF (Konopatskaia et al, 2016), which includes DREB genes responsive to drought and dehydration, and reports have shown that the Q gene is also regulated by drought (Gürsoy et al, 2012). Therefore, flowering time and spike morphology seem to have a shared regulatory framework with TaVrn1 and Q genes, and a strong response to drought.…”