Assessment of biochemical changes in Spinach (Spinacea oleracea L.) subjected to varying water regimes

It is known that leafy vegetables including spinach (Spinacea oleracea L.) contain relatively high amount of water, therefore, their water requirement during the life cycle is comparatively more than the other vegetables. In addition, there is an association between osmoprotection and antioxidants w...

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Main Authors:	Jabeen, Munifa, Akram, Nudrat Aisha, Muhammad Ashraf, Aziz, Aniqa
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2019
Online Access:	http://journalarticle.ukm.my/13311/ http://journalarticle.ukm.my/13311/ http://journalarticle.ukm.my/13311/1/05%20Munifa%20Jabeen.pdf

id	ukm-13311
recordtype	eprints
spelling	ukm-133112019-08-29T21:25:27Z http://journalarticle.ukm.my/13311/ Assessment of biochemical changes in Spinach (Spinacea oleracea L.) subjected to varying water regimes Jabeen, Munifa Akram, Nudrat Aisha Muhammad Ashraf, Aziz, Aniqa It is known that leafy vegetables including spinach (Spinacea oleracea L.) contain relatively high amount of water, therefore, their water requirement during the life cycle is comparatively more than the other vegetables. In addition, there is an association between osmoprotection and antioxidants with reference to drought stress tolerance. Keeping in mind these facts, the present study was conducted to assess the changes in plant growth, osmoprotectants, chlorophyll pigments and activities/levels of antioxidative system in spinach (Spinacea oleracea L.) grown under varying water deficit regimes with 40%, 60%, 80% and 100% field capacity (FC). Imposition of varying water regimes significantly decreased shoot and root fresh and dry weights, shoot plus root lengths, and chlorophyll b contents of spinach plants. Increase in proline, glycinebetaine (GB), total phenolics, ascorbic acid and malondialdehyde (MDA) contents as well as the activities of antioxidant enzymes including superoxide dismutase, peroxidase and catalase were observed in the spinach plants particularly at 40% FC. The most effective level of water stress for elevating the proline, GB and antioxidant levels/activities was observed at 40% FC followed by 60% FC. Hence, the results of this study suggested that upregulation of antioxidants and osmoprotectants is positively associated with the drought tolerance of spinach which depends on the severity of water stress level. These results can be used to narrow the gap between selection of plant species and requirement of irrigated water for the crops grown on dry land areas. Penerbit Universiti Kebangsaan Malaysia 2019-03 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/13311/1/05%20Munifa%20Jabeen.pdf Jabeen, Munifa and Akram, Nudrat Aisha and Muhammad Ashraf, and Aziz, Aniqa (2019) Assessment of biochemical changes in Spinach (Spinacea oleracea L.) subjected to varying water regimes. Sains Malaysiana, 48 (3). pp. 533-541. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid48bil3_2019/KandunganJilid48Bil3_2019.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	It is known that leafy vegetables including spinach (Spinacea oleracea L.) contain relatively high amount of water, therefore, their water requirement during the life cycle is comparatively more than the other vegetables. In addition, there is an association between osmoprotection and antioxidants with reference to drought stress tolerance. Keeping in mind these facts, the present study was conducted to assess the changes in plant growth, osmoprotectants, chlorophyll pigments and activities/levels of antioxidative system in spinach (Spinacea oleracea L.) grown under varying water deficit regimes with 40%, 60%, 80% and 100% field capacity (FC). Imposition of varying water regimes significantly decreased shoot and root fresh and dry weights, shoot plus root lengths, and chlorophyll b contents of spinach plants. Increase in proline, glycinebetaine (GB), total phenolics, ascorbic acid and malondialdehyde (MDA) contents as well as the activities of antioxidant enzymes including superoxide dismutase, peroxidase and catalase were observed in the spinach plants particularly at 40% FC. The most effective level of water stress for elevating the proline, GB and antioxidant levels/activities was observed at 40% FC followed by 60% FC. Hence, the results of this study suggested that upregulation of antioxidants and osmoprotectants is positively associated with the drought tolerance of spinach which depends on the severity of water stress level. These results can be used to narrow the gap between selection of plant species and requirement of irrigated water for the crops grown on dry land areas.
format	Article
author	Jabeen, Munifa Akram, Nudrat Aisha Muhammad Ashraf, Aziz, Aniqa
spellingShingle	Jabeen, Munifa Akram, Nudrat Aisha Muhammad Ashraf, Aziz, Aniqa Assessment of biochemical changes in Spinach (Spinacea oleracea L.) subjected to varying water regimes
author_facet	Jabeen, Munifa Akram, Nudrat Aisha Muhammad Ashraf, Aziz, Aniqa
author_sort	Jabeen, Munifa
title	Assessment of biochemical changes in Spinach (Spinacea oleracea L.) subjected to varying water regimes
title_short	Assessment of biochemical changes in Spinach (Spinacea oleracea L.) subjected to varying water regimes
title_full	Assessment of biochemical changes in Spinach (Spinacea oleracea L.) subjected to varying water regimes
title_fullStr	Assessment of biochemical changes in Spinach (Spinacea oleracea L.) subjected to varying water regimes
title_full_unstemmed	Assessment of biochemical changes in Spinach (Spinacea oleracea L.) subjected to varying water regimes
title_sort	assessment of biochemical changes in spinach (spinacea oleracea l.) subjected to varying water regimes
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2019
url	http://journalarticle.ukm.my/13311/ http://journalarticle.ukm.my/13311/ http://journalarticle.ukm.my/13311/1/05%20Munifa%20Jabeen.pdf
first_indexed	2023-09-18T20:04:34Z
last_indexed	2023-09-18T20:04:34Z
_version_	1777407072152846336

Assessment of biochemical changes in Spinach (Spinacea oleracea L.) subjected to varying water regimes

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