Chitosan suppresses the expression level of WRKY17 on red chili (Capsicum annuum) plant under drought stress

Chili pepper plays a significant role in the global market. However, the production is often impeded by drought stress involving WRKY genes as the defense regulator. Chitosan is considered as a promising alternative fertilizer and defense elicitor. Hence, this study aimed to determine the role of ch...

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Main Authors: Muhammad Abdul Aziz, Rizkita Rachmi Esyanti, Karlia Meitha, Fenny Martha Dwivany, Hany Husnul Chotimah
Format: Article
Language:English
Published: Universitas Gadjah Mada, Yogyakarta 2020-06-01
Series:Indonesian Journal of Biotechnology
Subjects:
Online Access:https://jurnal.ugm.ac.id/ijbiotech/article/view/55016
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author Muhammad Abdul Aziz
Rizkita Rachmi Esyanti
Karlia Meitha
Fenny Martha Dwivany
Hany Husnul Chotimah
author_facet Muhammad Abdul Aziz
Rizkita Rachmi Esyanti
Karlia Meitha
Fenny Martha Dwivany
Hany Husnul Chotimah
author_sort Muhammad Abdul Aziz
collection DOAJ
description Chili pepper plays a significant role in the global market. However, the production is often impeded by drought stress involving WRKY genes as the defense regulator. Chitosan is considered as a promising alternative fertilizer and defense elicitor. Hence, this study aimed to determine the role of chitosan in improving plant growth and survival of red chili pepper against drought stress. At the onset of the generative phase, chili plants were subjected to 1 mg mL‐1 chitosan, 50 percent drought, or chitosan‐drought treatment. Observations were made on several growth parameters, opened stomata, and WRKY gene expression. The results showed that chitosan‐drought treatment decreased plant growth and yielded significantly. The percentage of opened stomata was recorded at 0.56‐fold lower than control. It was followed by the decrease of the relative expression of WRKY17 and WRKY53 genes up to 0.56 and 0.72‐fold lower than control, respectively. Therefore, we suggested that the double treatment of chitosan‐drought might decrease plant growth performance but increase the defense system by suppressing the expression level of the WRKY17 gene. Interestingly, the drought treatment significantly increased WRKY17 expression level up to 7‐fold higher than control. Hence, it was suggested that WRKY17 has a specific role in response to drought stress.
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spelling doaj.art-7e4fadf1d2de425d9ba988042320bbb42023-02-06T02:59:57ZengUniversitas Gadjah Mada, YogyakartaIndonesian Journal of Biotechnology0853-86542089-22412020-06-01251526010.22146/ijbiotech.5501627135Chitosan suppresses the expression level of WRKY17 on red chili (Capsicum annuum) plant under drought stressMuhammad Abdul Aziz0Rizkita Rachmi Esyanti1Karlia Meitha2Fenny Martha Dwivany3Hany Husnul Chotimah41. School of Life Sciences and Technology, Institut Teknologi Bandung, West Java, Indonesia 3. Indonesian Research Institute For Biotechnology and Bioindustry, Jl. Taman Kencana No. 1 Bogor, Indonesia 161281. School of Life Sciences and Technology, Institut Teknologi Bandung, West Java, Indonesia1. School of Life Sciences and Technology, Institut Teknologi Bandung, West Java, Indonesia1. School of Life Sciences and Technology, Institut Teknologi Bandung, West Java, Indonesia 2. Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung, West Java, Indonesia1. School of Life Sciences and Technology, Institut Teknologi Bandung, West Java, IndonesiaChili pepper plays a significant role in the global market. However, the production is often impeded by drought stress involving WRKY genes as the defense regulator. Chitosan is considered as a promising alternative fertilizer and defense elicitor. Hence, this study aimed to determine the role of chitosan in improving plant growth and survival of red chili pepper against drought stress. At the onset of the generative phase, chili plants were subjected to 1 mg mL‐1 chitosan, 50 percent drought, or chitosan‐drought treatment. Observations were made on several growth parameters, opened stomata, and WRKY gene expression. The results showed that chitosan‐drought treatment decreased plant growth and yielded significantly. The percentage of opened stomata was recorded at 0.56‐fold lower than control. It was followed by the decrease of the relative expression of WRKY17 and WRKY53 genes up to 0.56 and 0.72‐fold lower than control, respectively. Therefore, we suggested that the double treatment of chitosan‐drought might decrease plant growth performance but increase the defense system by suppressing the expression level of the WRKY17 gene. Interestingly, the drought treatment significantly increased WRKY17 expression level up to 7‐fold higher than control. Hence, it was suggested that WRKY17 has a specific role in response to drought stress.https://jurnal.ugm.ac.id/ijbiotech/article/view/55016red chilichitosandroughtgrowth performancegene expression
spellingShingle Muhammad Abdul Aziz
Rizkita Rachmi Esyanti
Karlia Meitha
Fenny Martha Dwivany
Hany Husnul Chotimah
Chitosan suppresses the expression level of WRKY17 on red chili (Capsicum annuum) plant under drought stress
Indonesian Journal of Biotechnology
red chili
chitosan
drought
growth performance
gene expression
title Chitosan suppresses the expression level of WRKY17 on red chili (Capsicum annuum) plant under drought stress
title_full Chitosan suppresses the expression level of WRKY17 on red chili (Capsicum annuum) plant under drought stress
title_fullStr Chitosan suppresses the expression level of WRKY17 on red chili (Capsicum annuum) plant under drought stress
title_full_unstemmed Chitosan suppresses the expression level of WRKY17 on red chili (Capsicum annuum) plant under drought stress
title_short Chitosan suppresses the expression level of WRKY17 on red chili (Capsicum annuum) plant under drought stress
title_sort chitosan suppresses the expression level of wrky17 on red chili capsicum annuum plant under drought stress
topic red chili
chitosan
drought
growth performance
gene expression
url https://jurnal.ugm.ac.id/ijbiotech/article/view/55016
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