Differential variations in total flavonoid content and antioxidant enzymes activities in pea under different salt and drought stresses

Farooq, Muhammad; Ahmad, Rafiq; Shahzad, Muhammad; Sajjad, Yasar; Hassan, Amjad; Shah, Mohammad Maroof; Naz, Saba; Khan, Sabaz Ali

doi:10.1016/j.scienta.2021.110258

Cited by 44 publications

(26 citation statements)

References 78 publications

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“…In the present study, SOD and POD activity in both CK and Mu were significantly increased under drought stresses and recovered to pre-treatment levels, which is in accordance with a previous study (Abid et al, 2018). However, unlike previous reported researches (Farooq et al, 2021), it seemed that CAT failed to play a role in coping with ROS, since only the CAT activity in CK3 significantly decreased (Figure 1). It was reported that exogenous application of some phenolic acid would result in decrease in CAT activity, while other phenolic acids increased antioxidase activities including CAT and SOD (Bhardwaj et al, 2017).…”

Section: Discussionsupporting

confidence: 91%

Different adaptive patterns of wheat with different drought tolerance under drought stresses and rehydration revealed by integrated metabolomic and transcriptomic analysis

Chen

et al. 2022

Front. Plant Sci.

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Wheat as a staple food crop is enduring ever-frequent intermittent and changing drought with the climate change. It is of great significance to highlight the adaptive approaches under such variable conditions at multiple levels to provide a comprehensive understanding of drought tolerance and facilitate the genetic breeding of wheat. Therefore, three wheat lines with different drought tolerance (drought-tolerant mutant Mu > common wheat CK > drought susceptible mutant mu) were analyzed under moderate and severe drought stresses as well as rehydration. Samples were subjected to transcriptomic and metabolomic profiling in combination with physiological and biochemical determination. The moderate drought stress rendered 198 and 115 differentially expressed metabolites (DEMs) in CK and Mu, respectively. The severe drought stress rendered 166, 151 and 137 DEMs in CK, Mu and mu, respectively. The rehydration rendered 150 and 127 DEMs in CK and Mu. 12,557 and 10,402 differentially expressed genes (DEGs) were identified for CK and Mu under moderate drought stress, respectively. 9,893, 7,924, and 9,387 DEGs were identified for CK, Mu, and mu under severe drought stress, respectively. 13,874 and 14,839 were identified in CK and Mu under rehydration, respectively. Metabolomics results showed that amino acid was the most differentially expressed metabolites, followed by phenolic acids. Flavonoids played an important role in drought tolerance. Most enriched pathways under drought included biosynthesis of secondary metabolites, metabolic pathways and photosynthesis. Metabolites and genes involved in osmotic regulation, antioxidase activities, and ABA signaling were more enriched in Mu than in CK and mu. Various drought-responsive genes and metabolites in Mu showed different trends with those in CK and mu. Increased amino acids biosynthetic capability and ROS scavenging ability resulted from higher antioxidase activities and increased flavonoids may be the mechanisms underlying the drought tolerance characteristic of Mu. Recovery from reversible ROS damage and rapid amino acid biosynthesis may contribute to the rapid recovery of Mu. The present study provides new insights for mechanisms of wheat under complex drought conditions.

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Section: Discussionsupporting

confidence: 91%

Different adaptive patterns of wheat with different drought tolerance under drought stresses and rehydration revealed by integrated metabolomic and transcriptomic analysis

Chen

et al. 2022

Front. Plant Sci.

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“…SOD, POD and CAT activities of salt-tolerant cultivars were enhanced more under salt stress than that of sensitive cultivars. However, pea leaves SOD activity showed a significant decline under salt stress [ 47 ]. It may be responsible for the different sensitivity between species to salt stress or oxidative stress [ 42 ].…”

Section: Discussionmentioning

confidence: 99%

Effect of Salt Stress on Growth and Physiological Properties of Asparagus Seedlings

Guo

Ahmad

Zhao

et al. 2022

Plants

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Salt stress could inhibit the growth and development of crops and negatively affect yield and quality. The objective of this study was to investigate the physiological responses of different asparagus cultivars to salt stress. Twenty days old seedlings of salt-tolerant Apollo and salt-sensitive cultivar JL1 were subjected to 0 (CK) and120 mM NaCl stress for 20 d. Their changes in growth, ion contents, antioxidant enzyme activities and gene expression were analyzed. Salt stress significantly inhibited the growth of both cultivars, and JL1 showed a greater decrease than Apollo. The root development of Apollo was promoted by 120 mM NaCl treatment. The Na+ content in roots, stems, and leaves of both cultivars was increased under salt stress, while K+ content and K+/Na+ decreased. The salt-tolerant cultivar Apollo showed less extent of increase in Na+ and decrease in K+ content and kept a relatively high K+/Na+ ratio to compare with JL1. The contents of proline, soluble sugar and protein increased in Apollo, while these substances changed differently in JL1 under salt stress. Activities of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) were gradually increased under salt stress in Apollo, while the corresponding enzyme activities in JL1 were decreased at the late stage of salt stress. The expression of SOD, POD, and Cat genes of both cultivars changed in a similar way to the enzyme activities. Malondialdehyde (MDA) content was increased slightly in Apollo, while increased significantly in JL1. At the late stage of salt stress, Apollo maintained a relatively high K+/Na+, osmotic adjustment ability and antioxidant defense capability, and therefore exhibited higher tolerance to salt stress than that of JL1.

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“…Physiological analysis of plant drought stress responses is the primary way to reveal how stress affects crop growth and yield (Wang et al 2022). Under drought stress, soybean membrane lipid peroxidation was strengthened (Dong et al 2019), and MDA content increased (Gökmen and Ceyhan 2015, Katam et al 2020, Farooq et al 2021. In this experiment, different degrees of drought stress led to an increase in MDA content, and it reached the highest levels under severe drought, causing severe damage to the plant cell membrane.…”

Section: Resultsmentioning

confidence: 81%

Effects of drought stress on flowering soybean physiology under different soil conditions

Zhou¹,

Song²,

Wang³

et al. 2022

PLANT SOIL ENVIRON

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Soybean is highly sensitive to drought stress during its flowering period. Heinong84 (HN84) and Hefeng46 (HF46) were planted in clay loam, silty loam, and sandy clay. We studied the effects of drought stress on the content of membrane lipid peroxides in flowering soybean leaves, the activity of antioxidant enzymes, and the activity of key enzymes of nitrogen metabolism under different soil conditions. Our results showed that soybean had clear physiological responses to drought stress. With increasing drought stress, the malondialdehyde, glutathione reductase, and glutathione peroxidase levels in soybean leaves increased continuously. Superoxide dismutase, peroxidase, glutamine synthase, and glutamate synthase levels increased with drought stress, reaching a maximum under moderate drought stress and then decreased; nitrate reductase activity decreased continuously. Under the condition of sufficient water, the performance of soybean in the three soils is almost the same, but there are differences under drought stress; particularly, soybean grown in clay loam shows the strongest drought resistance. In summary, the physiological state of soybean is easily affected by drought stress, which varies greatly among different cultivars and in different soil types.

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Differential variations in total flavonoid content and antioxidant enzymes activities in pea under different salt and drought stresses

Cited by 44 publications

References 78 publications

Different adaptive patterns of wheat with different drought tolerance under drought stresses and rehydration revealed by integrated metabolomic and transcriptomic analysis

Different adaptive patterns of wheat with different drought tolerance under drought stresses and rehydration revealed by integrated metabolomic and transcriptomic analysis

Effect of Salt Stress on Growth and Physiological Properties of Asparagus Seedlings

Effects of drought stress on flowering soybean physiology under different soil conditions

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