Physiological response of Solanum nigrum to salt stress

The effects of salt stress (100, 200, 300 mmol/L) on physiological characteristics of Solanum nigrum seedlings were studied by pot experiment. The results showed that the contents of chlorophyll a, chlorophyll b, carotenoids and total chlorophyll in S. nigrum leaves showed a trend of first flattenin...

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Main Authors: Liao Renyan, Zhang Lan
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/09/e3sconf_iaecst20_01140.pdf
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author Liao Renyan
Zhang Lan
author_facet Liao Renyan
Zhang Lan
author_sort Liao Renyan
collection DOAJ
description The effects of salt stress (100, 200, 300 mmol/L) on physiological characteristics of Solanum nigrum seedlings were studied by pot experiment. The results showed that the contents of chlorophyll a, chlorophyll b, carotenoids and total chlorophyll in S. nigrum leaves showed a trend of first flattening and then increasing with the aggravation of salt stress. With the aggravation of salt stress, the net photosynthetic rate, stomatal conductance and intercellular CO2 concentration of S. nigrum decreased gradually, and reached the lowest value when the NaCl concentration was 300 mmol/L. With the increase of NaCl concentration, the SOD activity of S. nigrum leaves decreased gradually. When the concentration of NaCl was 300 mmol/L, the SOD activity of S. nigrum decreased by 53.39% (P < 0.05). The activities of POD, CAT and soluble protein in S. nigrum increased first and then decreased with the increase of NaCl concentration. When the concentration of NaCl was 100 mmol/L, the activities of POD, CAT and the content of soluble protein reached the maximum.
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spelling doaj.art-d783f77038ab4751851205b4830d07562022-12-21T22:43:38ZengEDP SciencesE3S Web of Conferences2267-12422021-01-012330114010.1051/e3sconf/202123301140e3sconf_iaecst20_01140Physiological response of Solanum nigrum to salt stressLiao RenyanZhang LanThe effects of salt stress (100, 200, 300 mmol/L) on physiological characteristics of Solanum nigrum seedlings were studied by pot experiment. The results showed that the contents of chlorophyll a, chlorophyll b, carotenoids and total chlorophyll in S. nigrum leaves showed a trend of first flattening and then increasing with the aggravation of salt stress. With the aggravation of salt stress, the net photosynthetic rate, stomatal conductance and intercellular CO2 concentration of S. nigrum decreased gradually, and reached the lowest value when the NaCl concentration was 300 mmol/L. With the increase of NaCl concentration, the SOD activity of S. nigrum leaves decreased gradually. When the concentration of NaCl was 300 mmol/L, the SOD activity of S. nigrum decreased by 53.39% (P < 0.05). The activities of POD, CAT and soluble protein in S. nigrum increased first and then decreased with the increase of NaCl concentration. When the concentration of NaCl was 100 mmol/L, the activities of POD, CAT and the content of soluble protein reached the maximum.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/09/e3sconf_iaecst20_01140.pdf
spellingShingle Liao Renyan
Zhang Lan
Physiological response of Solanum nigrum to salt stress
E3S Web of Conferences
title Physiological response of Solanum nigrum to salt stress
title_full Physiological response of Solanum nigrum to salt stress
title_fullStr Physiological response of Solanum nigrum to salt stress
title_full_unstemmed Physiological response of Solanum nigrum to salt stress
title_short Physiological response of Solanum nigrum to salt stress
title_sort physiological response of solanum nigrum to salt stress
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/09/e3sconf_iaecst20_01140.pdf
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