Ethylene inhibitors improve crop productivity by modulating gene expression, antioxidant defense machinery and photosynthetic efficiency of Solanum lycopersicum L. cv. Pusa Ruby grown in controlled salinity stress conditions
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Le résumé fourni par la source
Tomato is an important horticultural crop of global importance but its susceptibility to salinity stress significantly retards growth and thereby its yield. The impact of gaseous hormone, ethylene, accentuates the effect of salinity stress by negatively regulating various growth and developmental processes. Ethylene overproduction and ionic imbalance triggered by salinity stress exhibit upregulation of 1-aminocyclopropane-1-carboxylic acid synthase (ACS) and downregulation of NHX1, SOS1 and HKT1;2 under salinity stress conditions that negatively affect proline content, ROS scavenging machinery, morphometric and physiological attributes. Variation in the proline content, activation of ROS scavenging machinery, affected morphometric and physiological attributes are some discernible points in response to salinity stress induced ethylene production. Therefore, the experiment was designed to study the role of ethylene inhibitors silver nitrate (AgNO3) and cobalt chloride (CoCl2) in mitigating the negative effects of ethylene over production under salinity stress. Tomato seedlings were treated with 0 mM NaCl, 250 mM NaCl and 250 mM NaCl + 100 µM AgNO3, 250 mM NaCl + 100 µM CoCl2 for three days. The gene expression of ACS2, NHX1, SOS1 and HKT1;2, and ACS activity, endogenous ethylene level, Na+ and K+ ions concentration, proline content, antioxidant enzymes activity, photosynthetic efficiency and different morphological and yield parameters were assessed in tomato plants treated with salinity stress, and ethylene inhibitors at 45 DAS and 90 DAS. Results revealed that ethylene inhibitors might be playing the role in minimizing the ethylene and ACC load. The ACS enzyme activity and ethylene content were considerably decreased due to application of AgNO3and CoCl2. Further, the endogenous proline and K+ content, and K+/Na+ ratio were considerably increased in response to ethylene inhibitors treatment. Also, antioxidant enzymesviz., SOD, CAT, APX and GR, growth matrices, photosynthetic efficiency and yield attributes were significantly improved in treated tomato plants (salinity with ethylene inhibitors).
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Ethylene inhibitors improve crop productivity by modulating gene expression, antioxidant defense machinery and photosynthetic efficiency of Solanum lycopersicum L. cv. Pusa Ruby grown in controlled salinity stress conditions
- Date Crossref
- 01/10/2023
- Éditeur
- Elsevier BV
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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University of Delhi pays non établi dans la noticeUniversité ou école supérieure
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Vignan's Foundation for Science Department of Biotechnology pays non établi dans la noticeUniversité ou école supérieure
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Acharya Narendra Deva University of Agriculture and Technology pays non établi dans la noticeUniversité ou école supérieure
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University of Tabuk pays non établi dans la noticeUniversité ou école supérieure
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Grantham Centre for Sustainable Futures pays non établi dans la noticeStructure de recherche
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University of Sheffield pays non établi dans la noticeUniversité ou école supérieure
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Centurion University of Technology and Management Department of Biotechnology pays non établi dans la noticeUniversité ou école supérieure
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Dhanalakshmi Srinivasan Group of Institutions pays non établi dans la noticeUniversité ou école supérieure
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University of Tsukuba Institute of Health and Sport Sciences pays non établi dans la noticeUniversité ou école supérieure
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International Centre for Genetic Engineering and Biotechnology pays non établi dans la noticeStructure de recherche
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Maharshi Dayanand University pays non établi dans la noticeUniversité ou école supérieure
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Zakir Husain Delhi College Department of Botany pays non établi dans la noticeUniversité ou école supérieure
University of Delhi, Department of Biotechnology — Vignan's Foundation for Science et Acharya Narendra Deva University of Agriculture and Technology, avec 9 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.