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Seed priming to alleviate salinity stress in germinating seeds

•Seed germination and seedling growth of crops are the most sensitive stages to salinity.•Seed priming stimulates the pre-germination metabolic processes and provides faster and synchronized germination.•Seed priming could develop different defense mechanisms in seeds against salinity stress.•Kind o... Full description

Journal Title: Journal of plant physiology 2016-03-15, Vol.192, p.38-46
Main Author: Ibrahim, Ehab A
Format: Electronic Article Electronic Article
Language: English
Subjects:
Quelle: Alma/SFX Local Collection
Publisher: Germany: Elsevier GmbH
ID: ISSN: 0176-1617
Link: https://www.ncbi.nlm.nih.gov/pubmed/26812088
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recordid: cdi_proquest_miscellaneous_1773429101
title: Seed priming to alleviate salinity stress in germinating seeds
format: Article
creator:
  • Ibrahim, Ehab A
subjects:
  • Antioxidants - metabolism
  • Crops, Agricultural - drug effects
  • Crops, Agricultural - genetics
  • Crops, Agricultural - growth & development
  • Crops, Agricultural - physiology
  • Germination
  • Germination - drug effects
  • Osmotic Pressure
  • Oxidative Stress - drug effects
  • Physiological aspects
  • Priming agents
  • Salinity
  • Salinity stress
  • Salt-Tolerance - drug effects
  • Seed germination
  • Seed priming
  • Seedlings - drug effects
  • Seedlings - growth & development
  • Seedlings - physiology
  • Seeds
  • Seeds - drug effects
  • Seeds - growth & development
  • Seeds - physiology
  • Sodium Chloride - pharmacology
  • Stress, Physiological
ispartof: Journal of plant physiology, 2016-03-15, Vol.192, p.38-46
description: •Seed germination and seedling growth of crops are the most sensitive stages to salinity.•Seed priming stimulates the pre-germination metabolic processes and provides faster and synchronized germination.•Seed priming could develop different defense mechanisms in seeds against salinity stress.•Kind of priming agents affect salt tolerance in primed seeds. Salinity is one of the major abiotic stresses that affect crop production in arid and semiarid areas. Seed germination and seedling growth are the stages most sensitive to salinity. Salt stress causes adverse physiological and biochemical changes in germinating seeds. It can affect the seed germination and stand establishment through osmotic stress, ion-specific effects and oxidative stress. The salinity delays or prevents the seed germination through various factors, such as a reduction in water availability, changes in the mobilization of stored reserves and affecting the structural organization of proteins. Various techniques can improve emergence and stand establishment under salt conditions. One of the most frequently utilized is seed priming. The process of seed priming involves prior exposure to an abiotic stress, making a seed more resistant to future exposure. Seed priming stimulates the pre-germination metabolic processes and makes the seed ready for radicle protrusion. It increases the antioxidant system activity and the repair of membranes. These changes promote seed vigor during germination and emergence under salinity stress. The aim of this paper is to review the recent literature on the response of plants to seed priming under salinity stress. The mechanism of the effect of salinity on seed germination is discussed and the seed priming process is summarized. Physiological, biochemical and molecular changes induced by priming that lead to seed enhancement are covered. Plants’ responses to some priming agents under salinity stress are reported based on the best available data. For a great number of crops, little information exists and further research is needed.
language: eng
source: Alma/SFX Local Collection
identifier: ISSN: 0176-1617
fulltext: fulltext
issn:
  • 0176-1617
  • 1618-1328
url: Link


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description•Seed germination and seedling growth of crops are the most sensitive stages to salinity.•Seed priming stimulates the pre-germination metabolic processes and provides faster and synchronized germination.•Seed priming could develop different defense mechanisms in seeds against salinity stress.•Kind of priming agents affect salt tolerance in primed seeds. Salinity is one of the major abiotic stresses that affect crop production in arid and semiarid areas. Seed germination and seedling growth are the stages most sensitive to salinity. Salt stress causes adverse physiological and biochemical changes in germinating seeds. It can affect the seed germination and stand establishment through osmotic stress, ion-specific effects and oxidative stress. The salinity delays or prevents the seed germination through various factors, such as a reduction in water availability, changes in the mobilization of stored reserves and affecting the structural organization of proteins. Various techniques can improve emergence and stand establishment under salt conditions. One of the most frequently utilized is seed priming. The process of seed priming involves prior exposure to an abiotic stress, making a seed more resistant to future exposure. Seed priming stimulates the pre-germination metabolic processes and makes the seed ready for radicle protrusion. It increases the antioxidant system activity and the repair of membranes. These changes promote seed vigor during germination and emergence under salinity stress. The aim of this paper is to review the recent literature on the response of plants to seed priming under salinity stress. The mechanism of the effect of salinity on seed germination is discussed and the seed priming process is summarized. Physiological, biochemical and molecular changes induced by priming that lead to seed enhancement are covered. Plants’ responses to some priming agents under salinity stress are reported based on the best available data. For a great number of crops, little information exists and further research is needed.
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subjectAntioxidants - metabolism ; Crops, Agricultural - drug effects ; Crops, Agricultural - genetics ; Crops, Agricultural - growth & development ; Crops, Agricultural - physiology ; Germination ; Germination - drug effects ; Osmotic Pressure ; Oxidative Stress - drug effects ; Physiological aspects ; Priming agents ; Salinity ; Salinity stress ; Salt-Tolerance - drug effects ; Seed germination ; Seed priming ; Seedlings - drug effects ; Seedlings - growth & development ; Seedlings - physiology ; Seeds ; Seeds - drug effects ; Seeds - growth & development ; Seeds - physiology ; Sodium Chloride - pharmacology ; Stress, Physiological
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description•Seed germination and seedling growth of crops are the most sensitive stages to salinity.•Seed priming stimulates the pre-germination metabolic processes and provides faster and synchronized germination.•Seed priming could develop different defense mechanisms in seeds against salinity stress.•Kind of priming agents affect salt tolerance in primed seeds. Salinity is one of the major abiotic stresses that affect crop production in arid and semiarid areas. Seed germination and seedling growth are the stages most sensitive to salinity. Salt stress causes adverse physiological and biochemical changes in germinating seeds. It can affect the seed germination and stand establishment through osmotic stress, ion-specific effects and oxidative stress. The salinity delays or prevents the seed germination through various factors, such as a reduction in water availability, changes in the mobilization of stored reserves and affecting the structural organization of proteins. Various techniques can improve emergence and stand establishment under salt conditions. One of the most frequently utilized is seed priming. The process of seed priming involves prior exposure to an abiotic stress, making a seed more resistant to future exposure. Seed priming stimulates the pre-germination metabolic processes and makes the seed ready for radicle protrusion. It increases the antioxidant system activity and the repair of membranes. These changes promote seed vigor during germination and emergence under salinity stress. The aim of this paper is to review the recent literature on the response of plants to seed priming under salinity stress. The mechanism of the effect of salinity on seed germination is discussed and the seed priming process is summarized. Physiological, biochemical and molecular changes induced by priming that lead to seed enhancement are covered. Plants’ responses to some priming agents under salinity stress are reported based on the best available data. For a great number of crops, little information exists and further research is needed.
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1Crops, Agricultural - drug effects
2Crops, Agricultural - genetics
3Crops, Agricultural - growth & development
4Crops, Agricultural - physiology
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20Seeds - drug effects
21Seeds - growth & development
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abstract•Seed germination and seedling growth of crops are the most sensitive stages to salinity.•Seed priming stimulates the pre-germination metabolic processes and provides faster and synchronized germination.•Seed priming could develop different defense mechanisms in seeds against salinity stress.•Kind of priming agents affect salt tolerance in primed seeds. Salinity is one of the major abiotic stresses that affect crop production in arid and semiarid areas. Seed germination and seedling growth are the stages most sensitive to salinity. Salt stress causes adverse physiological and biochemical changes in germinating seeds. It can affect the seed germination and stand establishment through osmotic stress, ion-specific effects and oxidative stress. The salinity delays or prevents the seed germination through various factors, such as a reduction in water availability, changes in the mobilization of stored reserves and affecting the structural organization of proteins. Various techniques can improve emergence and stand establishment under salt conditions. One of the most frequently utilized is seed priming. The process of seed priming involves prior exposure to an abiotic stress, making a seed more resistant to future exposure. Seed priming stimulates the pre-germination metabolic processes and makes the seed ready for radicle protrusion. It increases the antioxidant system activity and the repair of membranes. These changes promote seed vigor during germination and emergence under salinity stress. The aim of this paper is to review the recent literature on the response of plants to seed priming under salinity stress. The mechanism of the effect of salinity on seed germination is discussed and the seed priming process is summarized. Physiological, biochemical and molecular changes induced by priming that lead to seed enhancement are covered. Plants’ responses to some priming agents under salinity stress are reported based on the best available data. For a great number of crops, little information exists and further research is needed.
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