Physiological and biochemical responses of plants in saline environment

Salinity affects plant growth and development in various ways through its impact on photosynthesis, water relations and nutrient absorption. Additionally, the biochemical composition of plants is also affected by salinity through changes in the concentration and type of proteins, amino acids, sug...

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Main Authors: Torabi, Masoud, Abd Halim, Mohd Ridzwan, Mokhtarzadeh, Aliakbar, Miri, Yasamin
Other Authors: Roychowdhury, Rajib
Format: Book Section
Published: Lambert Academic Publishing 2013
Online Access:http://psasir.upm.edu.my/id/eprint/31272/
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author Torabi, Masoud
Abd Halim, Mohd Ridzwan
Mokhtarzadeh, Aliakbar
Miri, Yasamin
author2 Roychowdhury, Rajib
author_facet Roychowdhury, Rajib
Torabi, Masoud
Abd Halim, Mohd Ridzwan
Mokhtarzadeh, Aliakbar
Miri, Yasamin
author_sort Torabi, Masoud
building UPM Institutional Repository
collection Online Access
description Salinity affects plant growth and development in various ways through its impact on photosynthesis, water relations and nutrient absorption. Additionally, the biochemical composition of plants is also affected by salinity through changes in the concentration and type of proteins, amino acids, sugars and other carbohydrates. This chapter elucidates with examples the changes that occur in the plant‟s physiological functions and biochemical composition as a result of increased salinity of the plant‟s environment. It is highlighted that the fundamental mechanism of salinity‟s effects on plant function is the increase in the osmotic pressure of the plant‟s environment that inhibits the absorption of water and nutrients. Invariably, salinity inhibits photosynthesis through its effects on stomatal conductance, water and nutrient uptake and decrease in the chlorophyll concentration. Subsequently, higher levels of salinity create an excessive accumulation of salts in plant tissues that causes toxicity. Prolonged salinity will thus reduce plant growth and yield and with increasing severity of salinity, toxic levels of salts that build up in plant tissues will further aggravate the stress. Plants exhibit several mechanisms that can alleviate the deleterious effects of salinity including compartmentalization of ions, synthesis of compatible solutes, induction of plant hormones and alteration of membrane structure.
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format Book Section
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institution Universiti Putra Malaysia
institution_category Local University
last_indexed 2025-11-15T09:10:13Z
publishDate 2013
publisher Lambert Academic Publishing
recordtype eprints
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spelling upm-312722015-02-05T05:23:42Z http://psasir.upm.edu.my/id/eprint/31272/ Physiological and biochemical responses of plants in saline environment Torabi, Masoud Abd Halim, Mohd Ridzwan Mokhtarzadeh, Aliakbar Miri, Yasamin Salinity affects plant growth and development in various ways through its impact on photosynthesis, water relations and nutrient absorption. Additionally, the biochemical composition of plants is also affected by salinity through changes in the concentration and type of proteins, amino acids, sugars and other carbohydrates. This chapter elucidates with examples the changes that occur in the plant‟s physiological functions and biochemical composition as a result of increased salinity of the plant‟s environment. It is highlighted that the fundamental mechanism of salinity‟s effects on plant function is the increase in the osmotic pressure of the plant‟s environment that inhibits the absorption of water and nutrients. Invariably, salinity inhibits photosynthesis through its effects on stomatal conductance, water and nutrient uptake and decrease in the chlorophyll concentration. Subsequently, higher levels of salinity create an excessive accumulation of salts in plant tissues that causes toxicity. Prolonged salinity will thus reduce plant growth and yield and with increasing severity of salinity, toxic levels of salts that build up in plant tissues will further aggravate the stress. Plants exhibit several mechanisms that can alleviate the deleterious effects of salinity including compartmentalization of ions, synthesis of compatible solutes, induction of plant hormones and alteration of membrane structure. Lambert Academic Publishing Roychowdhury, Rajib 2013 Book Section PeerReviewed Torabi, Masoud and Abd Halim, Mohd Ridzwan and Mokhtarzadeh, Aliakbar and Miri, Yasamin (2013) Physiological and biochemical responses of plants in saline environment. In: Crop Biology and Agriculture in Harsh Environments. Lambert Academic Publishing, Saarbrucken, Germany, pp. 47-80. ISBN 9783659376917
spellingShingle Torabi, Masoud
Abd Halim, Mohd Ridzwan
Mokhtarzadeh, Aliakbar
Miri, Yasamin
Physiological and biochemical responses of plants in saline environment
title Physiological and biochemical responses of plants in saline environment
title_full Physiological and biochemical responses of plants in saline environment
title_fullStr Physiological and biochemical responses of plants in saline environment
title_full_unstemmed Physiological and biochemical responses of plants in saline environment
title_short Physiological and biochemical responses of plants in saline environment
title_sort physiological and biochemical responses of plants in saline environment
url http://psasir.upm.edu.my/id/eprint/31272/