Physiological and transcriptional evaluation of sweet sorghum seedlings in response to single and combined drought and salinity stress

Wang, Zhiheng; Yu-qing, Wei; Zhao, Yanrong; Wang, Yuejuan; Zou, Fang; Huang, Suli; Yang, Xiuliu; Xu, Zhongwei; Hu, Han

doi:10.1016/j.sajb.2021.11.029

Cited by 14 publications

(9 citation statements)

References 66 publications

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“… Sun et al (2022) found DEGs were involved in tryptophan and α-linolenic acid metabolism, flavonoid and phenylpropanoid biosynthesis and the mitogen-activated protein kinase (MAPK) signalling pathway in Tamarix taklamakanensis seedlings in response to drought stress. In addition, in-depth transcriptomic analyses of Brassica napus ( Xiong et al, 2018 ), durum wheat ( Gullì et al, 2022 ), sweet sorghum ( Wang et al, 2022 ) and Agrostis stolonifera ( Ma et al, 2017 ) under drought stress were performed, and the corresponding drought stress-responsive genes were identified. The volatile substances released by plants through secondary metabolism are also important means by which plants resist adverse conditions.…”

Section: Introductionmentioning

confidence: 99%

Transcriptomic and Metabolomic Analyses Reveal Key Metabolites, Pathways and Candidate Genes in Sophora davidii (Franch.) Skeels Seedlings Under Drought Stress

et al. 2022

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Soil aridification and desertification are particularly prominent in China’s karst areas, severely limiting crop yields and vegetation restoration. Therefore, it is very important to identify naturally drought-tolerant plant species. Sophora davidii (Franch.) Skeels is resistant to drought and soil infertility, is deeply rooted and is an excellent plant material for soil and water conservation. We studied the transcriptomic and metabolomic changes in S. davidii in response to drought stress (CK, control; LD, mild drought stress; MD, moderate drought stress; and SD, severe drought stress). Sophora davidii grew normally under LD and MD stress but was inhibited under SD stress; the malondialdehyde (MDA), hydrogen peroxide (H2O2), soluble sugar, proline, chlorophyll a, chlorophyll b and carotenoid contents and ascorbate peroxidase (APX) activity significantly increased, while the superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) activities and soluble protein content significantly decreased. In the LD/CK, MD/CK and SD/CK comparison groups, there were 318, 734 and 1779 DEGs, respectively, and 100, 168 and 281 differentially accumulated metabolites, respectively. Combined analysis of the transcriptomic and metabolomic data revealed the metabolic regulation of S. davidii in response to drought stress. First, key candidate genes such as PRR7, PRR5, GI, ELF3, PsbQ, PsaK, INV, AMY, E2.4.1.13, E3.2.1.2, NCED, PP2C, PYL, ABF, WRKY33, P5CS, PRODH, AOC3, HPD, GPX, GST, CAT and SOD1 may govern the drought resistance of S. davidii. Second, three metabolites (oxidised glutathione, abscisic acid and phenylalanine) were found to be related to drought tolerance. Third, several key candidate genes and metabolites involved in 10 metabolic pathways were identified, indicating that these metabolic pathways play an important role in the response to drought in S. davidii and possibly other plant species.

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Section: Introductionmentioning

confidence: 99%

Transcriptomic and Metabolomic Analyses Reveal Key Metabolites, Pathways and Candidate Genes in Sophora davidii (Franch.) Skeels Seedlings Under Drought Stress

et al. 2022

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“…Schiattone et al (2017) found that increased salt stress in wild rockets suppressed vegetative growth and thus decreased yield. The study conducted by Wang et al (2022) on sorghum (Sorghum bicolor L. Moench) showed that vegetative development during the seedling stage was not significantly affected by stress alone. However, when the stress period was extended and combined with salt and drought stress, it suppressed chlorophyll content and photosynthetic fluorescence, indicating a negative impact on the plant's photosynthetic capacity.…”

Section: Rocketmentioning

confidence: 99%

Salt and heavy metal stress responses and metal uptake potentials of some leafy vegetables

Nasircilar,

Ulukapi,

Topcuoglu

et al. 2024

Agrosystems Geosci & Env

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Abiotic stress conditions caused by increasing anthropogenic activities over the years necessitate using marginal waters in agricultural irrigation and pose a risk to public health by causing salt stress and heavy metal pollution in the soil. The study exposed rocket (Eruca sativa L.), cress (Lepidium sativum L.), and parsley (Petroselinum crispum Mill.) plants to heavy metals (Zn, Cu, Ni, Pb, Cd, and Cr at rates of 300, 140, 75, 300, 3, and 100 mg kg−1, respectively) and salt stress (3, 6, and 9 dS m−1). Both stress conditions affected plant growth negatively. Biomass losses reaching 88% occurred in the rocket, which was determined to be more sensitive to salt stress than heavy metal stress. In parsley, on the other hand, it was determined that the above‐ground organs were more affected by salt stress, but the negative effect of heavy metal stress on the roots was higher than salt stress. In cress, the cultivars produced different responses to stress factors. The Zeybek cultivar was more affected by salt stress, and Bahargülü was more affected by heavy metal stress. In general, an increase in macro‐ and micronutrients was found under stress conditions. In addition, it was determined that the plants were hyper‐accumulative in terms of lead absorption and were sorted as cress > parsley > rocket in terms of metal uptake. According to these findings, these plants should be grown taking into account the lead values in the soil, and consumers should be aware that they are a group of vegetables that accumulate lead.

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“…Furthermore, three genes (FBA3, DELTA-OAT, and PROC) and 15 transcription factors, related to the biosynthesis of amino acids, were identified in Z. bungeanum leaves under drought conditions (Hu et al, 2022a). Transcription and metabolic level changes under drought conditions have been studied in Seriphidium transiliense (Liu et al, 2022), Panicum miliaceum (Yuan et al, 2022), Carthamus tinctorius (Wei et al, 2020), and sweet sorghum (Wang et al, 2022) and stress-related genes and key metabolic pathways and metabolites were analyzed.…”

Section: Introductionmentioning

confidence: 99%

Integrated physiological, transcriptomic, and metabolomic analyses of drought stress alleviation in Ehretia macrophylla Wall. seedlings by SiO2 NPs (silica nanoparticles)

Chen,

Jiao,

Xie

et al. 2024

Front. Plant Sci.

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With environmental problems such as climate global warming, drought has become one of the major stress factors, because it severely affects the plant growth and development. Silicon dioxide nanoparticles (SiO2 NPs) are crucial for mitigating abiotic stresses suffered by plants in unfavorable environmental conditions and further promoting plant growth, such as drought. This study aimed to investigate the effect of different concentrations of SiO2 NPs on the growth of the Ehretia macrophylla Wall. seedlings under severe drought stress (water content in soil, 30–35%). The treatment was started by starting spraying different concentrations of SiO2 NPs on seedlings of Ehretia macrophyla, which were consistently under normal and severe drought conditions (soil moisture content 30-35%), respectively, at the seedling stage, followed by physiological and biochemical measurements, transcriptomics and metabolomics analyses. SiO2 NPs (100 mg·L−1) treatment reduced malondialdehyde and hydrogen peroxide content and enhanced the activity of antioxidant enzymes under drought stress. Transcriptomic analysis showed that 1451 differentially expressed genes (DEGs) in the leaves of E. macrophylla seedlings were regulated by SiO2 NPs under drought stress, and these genes mainly participate in auxin signal transduction and mitogen-activated protein kinase signaling pathways. This study also found that the metabolism of fatty acids and α-linolenic acids may play a key role in the enhancement of drought tolerance in SiO2 NP-treated E. macrophylla seedlings. Metabolomics studies indicated that the accumulation level of secondary metabolites related to drought tolerance was higher after SiO2 NPs treatment. This study revealed insights into the physiological mechanisms induced by SiO2 NPs for enhancing the drought tolerance of plants.

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Physiological and transcriptional evaluation of sweet sorghum seedlings in response to single and combined drought and salinity stress

Cited by 14 publications

References 66 publications

Transcriptomic and Metabolomic Analyses Reveal Key Metabolites, Pathways and Candidate Genes in Sophora davidii (Franch.) Skeels Seedlings Under Drought Stress

Transcriptomic and Metabolomic Analyses Reveal Key Metabolites, Pathways and Candidate Genes in Sophora davidii (Franch.) Skeels Seedlings Under Drought Stress

Salt and heavy metal stress responses and metal uptake potentials of some leafy vegetables

Integrated physiological, transcriptomic, and metabolomic analyses of drought stress alleviation in Ehretia macrophylla Wall. seedlings by SiO2 NPs (silica nanoparticles)

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