Chitra Shanker The impact of global climate change on crop production has emerged as a major research priority during the past decade. Understanding abiotic stress factors such as temperature and drought tolerance and biotic stress tolerance traits such as insect pest and pathogen resistance in combination with high yield in plants is of paramount importance to counter climate change related adverse effects on t The impact of global climate change on crop production has emerged as a major research priority during the past decade. Understanding abiotic stress factors such as temperature and drought tolerance and biotic stress tolerance traits such as insect pest and pathogen resistance in combination with high yield in plants is of paramount importance to counter climate change related adverse effects on the productivity of crops.
Sylvie Renault, External Editor and Dr. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license http: This article has been cited by other articles in PMC.
Abstract Plants are constantly confronted to both abiotic and biotic stresses that seriously reduce their productivity. Plant responses to these stresses are complex and involve numerous physiological, molecular, and cellular adaptations.
Recent evidence shows that a combination of abiotic and biotic stress can have a positive effect on plant performance by reducing the susceptibility to biotic stress. Such an interaction between both types of stress points to a crosstalk between their respective signaling pathways.
This review aims at giving an insight into cross-tolerance between abiotic and biotic stress, focusing on the molecular level and regulatory pathways.
Introduction Plants have to deal with various and complex types of interactions involving numerous environmental factors. In the course of evolution, they have evolved specific mechanisms allowing them to adapt and survive stressful events.
Exposure of plants to biotic and abiotic stress induces a disruption in plant metabolism implying physiological costs [ 1234 ], and thus leading to a reduction in fitness and ultimately in productivity [ 5 ]. Abiotic stress is one of the most important features of and has a huge impact on growth and, consequently, it is responsible for severe losses in the field.
Moreover, biotic stress is an additional challenge inducing a strong pressure on plants and adding to the damage through pathogen or herbivore attack [ 7891011 ]. A crucial step in plant defense is the timely perception of the stress in order to respond in a rapid and efficient manner.
In recent years, research has mainly concentrated on understanding plant responses to individual abiotic or biotic stresses [ 19202122 ], although the response to simultaneous stresses is bound to lead to a much more complex scenario [ 18 ]. From the perception of the stimulus stress to the final response in cells, plants use various signaling pathways depending on the challenge s.
Research on multiple stresses has been trying to simulate natural conditions, but in the field, conditions are not controlled, and one stress can strongly influence the primary stress defense response of the plants [ 18 ].
Moreover, plants can show different degrees of sensitivity depending on the field condition and the developmental stage of the plant [ 24 ]. Additional factors that can influence an interaction are the intensity of the stress and the plant species.
Various interactions can take place between the defenses induced after perception of the stresses. They depend on the specific combination of stresses and even on the degree of simultaneity [ 152526 ]. It is not clear whether simultaneous stresses are rather antagonistic, synergistic or additive, inducing more or less susceptibility to a specific kind of stress [ 2728 ].
Combination of two stressors can have a negative and additive effect on plants, the second stress being the one that leads to a greater damage [ 29 ]. On the other hand, the combination of stresses can also lead to antagonistic responses in the plants [ 3031 ].
Common beans exposed to drought stress display more symptoms when infected by Macrophomina phaseolina [ 29 ] and treatment of detached tomato leaves with exogenously applied ABA increases the susceptibility of wild type plants to Botrytis cinerea [ 32 ].Recent Advances and Future Perspectives.
Edited by Arun Shanker. Effect of Salinity Stress on Gene Expression in Black Tiger Shrimp Penaeus monodon. By Shekhar S. Mudagandur, Gopikrishna Gopalapillay and Koyadan K.
Vijayan Plant Evolution in Response to Abiotic and Biotic Stressors at “Rear-edge” Range Boundaries. Plant responses to abiotic stresses are very complex phenomena with individual characteristics for various species. Abiotic stresses (e.g. drought, salinity, flooding, cold, heat, UV radiation.
Nov 17, · Multiple factors limit plant growth. Fundamentally, plants require energy (light), water, carbon and mineral nutrients for growth. Abiotic stress is defined as environmental conditions that reduce growth and yield below optimum levels.
In the end, most abiotic stresses affect the plant cells in the same manner as do water stress and temperature stress. Wind stress can either directly damage the plant through sheer force; or, the wind can affect the transpiration of water through the leaf stomata and cause desiccation.
Abiotic stress cause changes in soil-plant-atmosphere continuum and is responsible for reduced yield in several major crops. Therefore, the subject of abiotic stress response in plants - metabolism, productivity and sustainability - is gaining considerable significance in the contemporary world.
Plant survival and growth is critically influenced by abiotic factors including water, wind, and light. But most importantantly (in our experiment) light as it physical alters temperature which directly affects photosynthesis, respiration, transpiration - loss of water and absorption of water and nutrients.