The Role of Phyllosphere Bacteria in Improving Cotton Growth and Yield Under Drought Conditions

Cotton is a valuable fiber and cash crop in Telangana, India. This study examines how crop growth and fiber yield are affected by the uneven distribution of rainfall. Cotton phyllosphere bacterial isolates were gathered from the Rangareddy and Warangal Districts of Telangana, and in total, 31 phyllo...

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Autores principales:	S. Sharath, S. Triveni, Y. Nagaraju, P. C. Latha, B. Vidyasagar
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	drought water potential ACC deaminase phyllosphere exopolysaccharides (EPS) Agriculture S Plant culture SB1-1110
Acceso en línea:	https://doaj.org/article/f676b1666dc8479db657ab83de9b9661
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spelling	oai:doaj.org-article:f676b1666dc8479db657ab83de9b96612021-11-12T04:46:02ZThe Role of Phyllosphere Bacteria in Improving Cotton Growth and Yield Under Drought Conditions2673-321810.3389/fagro.2021.680466https://doaj.org/article/f676b1666dc8479db657ab83de9b96612021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fagro.2021.680466/fullhttps://doaj.org/toc/2673-3218Cotton is a valuable fiber and cash crop in Telangana, India. This study examines how crop growth and fiber yield are affected by the uneven distribution of rainfall. Cotton phyllosphere bacterial isolates were gathered from the Rangareddy and Warangal Districts of Telangana, and in total, 31 phyllosphere bacterial isolates were obtained. These isolates were screened for drought tolerance and it was found that fifteen suitable isolates grew at −1.25 Mpa stress level with copious amounts of exopolysaccharides production. These isolates were further screened for ACC deaminase production and we observed 0.13–0.40 mM of α-ketobutyrate per milligram of cellular protein per hour. Five efficient bacterial isolates, namely Pseudomonas stutzeri, Acinetobacter sp., Bacillus mojavensis, Pseudomonas chlororaphis, and Enterobacter asburiae were found to produce ACC deaminase and were able to grow at −1.25 Mpa stress level. The cotton variety ADB-542 (drought susceptible) was treated with drought-tolerant five isolates. Acinetobacter sp. treated seeds had the highest seed germination and seedling vigor of 76.67 and 45.81%, respectively. The nutrient status of inoculated plots was considerably improved. The root length, fresh weight, proline content, and the number of bolls were increased by 28.52, 41.9, 28.78, and 12.99%, respectively, with the inoculation of Acinetobacter sp., to plants at −0.75 Mpa water potential. Overall the performance of cotton was improved significantly with the inoculation of phyllosphere bacteria to seeds; hence they can be recommended for the application of field crops as bio-inoculants.S. SharathS. TriveniY. NagarajuP. C. LathaB. VidyasagarFrontiers Media S.A.articledroughtwater potentialACC deaminasephyllosphereexopolysaccharides (EPS)AgricultureSPlant cultureSB1-1110ENFrontiers in Agronomy, Vol 3 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	drought water potential ACC deaminase phyllosphere exopolysaccharides (EPS) Agriculture S Plant culture SB1-1110
spellingShingle	drought water potential ACC deaminase phyllosphere exopolysaccharides (EPS) Agriculture S Plant culture SB1-1110 S. Sharath S. Triveni Y. Nagaraju P. C. Latha B. Vidyasagar The Role of Phyllosphere Bacteria in Improving Cotton Growth and Yield Under Drought Conditions
description	Cotton is a valuable fiber and cash crop in Telangana, India. This study examines how crop growth and fiber yield are affected by the uneven distribution of rainfall. Cotton phyllosphere bacterial isolates were gathered from the Rangareddy and Warangal Districts of Telangana, and in total, 31 phyllosphere bacterial isolates were obtained. These isolates were screened for drought tolerance and it was found that fifteen suitable isolates grew at −1.25 Mpa stress level with copious amounts of exopolysaccharides production. These isolates were further screened for ACC deaminase production and we observed 0.13–0.40 mM of α-ketobutyrate per milligram of cellular protein per hour. Five efficient bacterial isolates, namely Pseudomonas stutzeri, Acinetobacter sp., Bacillus mojavensis, Pseudomonas chlororaphis, and Enterobacter asburiae were found to produce ACC deaminase and were able to grow at −1.25 Mpa stress level. The cotton variety ADB-542 (drought susceptible) was treated with drought-tolerant five isolates. Acinetobacter sp. treated seeds had the highest seed germination and seedling vigor of 76.67 and 45.81%, respectively. The nutrient status of inoculated plots was considerably improved. The root length, fresh weight, proline content, and the number of bolls were increased by 28.52, 41.9, 28.78, and 12.99%, respectively, with the inoculation of Acinetobacter sp., to plants at −0.75 Mpa water potential. Overall the performance of cotton was improved significantly with the inoculation of phyllosphere bacteria to seeds; hence they can be recommended for the application of field crops as bio-inoculants.
format	article
author	S. Sharath S. Triveni Y. Nagaraju P. C. Latha B. Vidyasagar
author_facet	S. Sharath S. Triveni Y. Nagaraju P. C. Latha B. Vidyasagar
author_sort	S. Sharath
title	The Role of Phyllosphere Bacteria in Improving Cotton Growth and Yield Under Drought Conditions
title_short	The Role of Phyllosphere Bacteria in Improving Cotton Growth and Yield Under Drought Conditions
title_full	The Role of Phyllosphere Bacteria in Improving Cotton Growth and Yield Under Drought Conditions
title_fullStr	The Role of Phyllosphere Bacteria in Improving Cotton Growth and Yield Under Drought Conditions
title_full_unstemmed	The Role of Phyllosphere Bacteria in Improving Cotton Growth and Yield Under Drought Conditions
title_sort	role of phyllosphere bacteria in improving cotton growth and yield under drought conditions
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/f676b1666dc8479db657ab83de9b9661
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The Role of Phyllosphere Bacteria in Improving Cotton Growth and Yield Under Drought Conditions

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