Chaste plant extract is a promising biostimulant for tomato plants’ growth under salt stress

Ennoury, Abdelhamid; Roussi, Zoulfa; Nhhala, Nada; Zouaoui, Zakia; Benmrid, Bouchra; Krid, Azzouz; Kchikich, Anass; Kabach, Imad; Nhiri, Mohamed

doi:10.1007/s13399-022-03454-5

Cited by 6 publications

(2 citation statements)

References 52 publications

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“…Carbon is also an important component of plant biomass [45], and SS mainly regulates starch synthesis as well as sucrose degradation processes, affecting the carbohydrate level of plants [46]. In this study, we found that the activities of NR, GS, and SS were significantly reduced in tobacco seedlings under salt stress, which also indicated that salt stress inhibited the activities of enzymes related to carbon and nitrogen processes, and reduced nitrogen uptake and utilization as well as carbohydrate synthesis in tobacco seedlings, which is in agreement with the results of previous studies [13,47]. In contrast, exogenous eugenol increased the activities of these enzymes under salt stress and promoted carbon and nitrogen metabolism.…”

Section: Discussionsupporting

confidence: 92%

Exogenous Eugenol Alleviates Salt Stress in Tobacco Seedlings by Regulating the Antioxidant System and Hormone Signaling

Xu,

Wang,

Wang

et al. 2024

IJMS

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Salt stress seriously affects crop growth, leading to a decline in crop quality and yield. Application of exogenous substances to improve the salt tolerance of crops and promote their growth under salt stress has become a widespread and effective means. Eugenol is a small molecule of plant origin with medicinal properties such as antibacterial, antiviral, and antioxidant properties. In this study, tobacco seedlings were placed in Hoagland’s solution containing NaCl in the presence or absence of eugenol, and physiological indices related to stress tolerance were measured along with transcriptome sequencing. The results showed that eugenol improved the growth of tobacco seedlings under salt stress. It promoted carbon and nitrogen metabolism, increased the activities of nitrate reductase (NR), sucrose synthase (SS), and glutamine synthetase (GS) by 31.03, 5.80, and 51.06%. It also activated the enzymatic and non-enzymatic antioxidant systems, reduced the accumulation of reactive oxygen species in the tobacco seedlings, and increased the activities of superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), and ascorbate peroxidase (APX) by 24.38%, 18.22%, 21.60%, and 28.8%, respectively. The content of glutathione (GSH) was increased by 29.49%, and the content of superoxide anion (O2−) and malondialdehyde (MDA) were reduced by 29.83 and 33.86%, respectively. Promoted osmoregulation, the content of Na+ decreased by 34.34, K+ increased by 41.25%, and starch and soluble sugar increased by 7.72% and 25.42%, respectively. It coordinated hormone signaling in seedlings; the content of abscisic acid (ABA) and gibberellic acid 3 (GA3) increased by 51.93% and 266.28%, respectively. The transcriptome data indicated that the differentially expressed genes were mainly enriched in phenylpropanoid biosynthesis, the MAPK signaling pathway, and phytohormone signal transduction pathways. The results of this study revealed the novel role of eugenol in regulating plant resistance and provided a reference for the use of exogenous substances to alleviate salt stress.

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Section: Discussionsupporting

confidence: 92%

Exogenous Eugenol Alleviates Salt Stress in Tobacco Seedlings by Regulating the Antioxidant System and Hormone Signaling

Xu,

Wang,

Wang

et al. 2024

IJMS

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“…In this study, the MDA and H 2 O 2 contents increased levels in the roots and leaves, indicating that NaCl stress induced lipid peroxidation and oxidative damage to wild cucumber. Antioxidant enzymes play a crucial role in protecting cells form oxidative damage [46,47]. Following exposure to NaCl stress, the wild cucumber exhibited heightened activities of antioxidant enzymes, including SOD, POD, APX, and GR.…”

Section: Ros Scavenging Substances Of Wild Cucumber Play Important Ro...mentioning

confidence: 99%

Transcriptomic Analysis of Cucumis hystrix and the Functional Identification of ChTrxh under NaCl Stress

Guo,

Zeng,

et al. 2023

Agronomy

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Salinity is a prominent environmental stressor that significantly impacts plant growth and development. Here, we conducted research on the physiological and transcriptomic mechanism of a wild cucumber, Cucumis hystrix Chakr, under NaCl stress. Physiological data showed that contents of malondialdehyde, peroxide (H2O2), proline, soluble sugar, and activities of antioxidant enzymes of superoxide dismutase, peroxidase, ascorbate peroxidase, and glutathione reductase in wild cucumber plants were increased significantly after NaCl treatment. Transcriptomic analysis revealed that 3509 transcripts were differentially expressed in leaves and 5516 transcripts in roots after NaCl treatment. Numerous genes were related to the signal transduction, transcription factor, ion transport, osmotic metabolism, and reactive oxygen species scavenging. Moreover, the thioredoxin H type gene of Cucumis hystrix Chakr (ChTrxh) was isolated and characterized. Our study demonstrated that the transgenic tobacco plants overexpressing ChTrxh exhibited enhanced tolerance to NaCl stress compared to wild-type plants. These findings contribute valuable insights into the functional characteristics of important genes in wild cucumber under NaCl stress.

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Atriplex halimus water extract: a biochemical composition that enhanced the faba bean plants growth

Ennoury

Roussi

Nhhala

et al. 2023

Physiol Mol Biol Plants

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Chaste plant extract is a promising biostimulant for tomato plants’ growth under salt stress

Cited by 6 publications

References 52 publications

Exogenous Eugenol Alleviates Salt Stress in Tobacco Seedlings by Regulating the Antioxidant System and Hormone Signaling

Exogenous Eugenol Alleviates Salt Stress in Tobacco Seedlings by Regulating the Antioxidant System and Hormone Signaling

Transcriptomic Analysis of Cucumis hystrix and the Functional Identification of ChTrxh under NaCl Stress

Atriplex halimus water extract: a biochemical composition that enhanced the faba bean plants growth

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