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dc.contributor.authorBasit, Farwa
dc.contributor.authorAkhter Bhat, Javaid
dc.contributor.authorHan, Jiajun
dc.contributor.authorGuan, Yajing
dc.contributor.authorShakoor, Awais
dc.contributor.authorAlansi, Saleh
dc.description.abstractRice is the most important crop for the majority of population across the world with sensitive behavior toward heavy metals such as chromium (Cr) in polluted regions. Although, there is no information on the Cr resistance phenotyping in rice. Herein, two different groups of rice cultivars (normal, and hybrid) were used, each group with 14 different rice cultivars. Firstly, seed germination analysis was conducted by evaluating various seed germination indices to identify the rice cultivars with greatest seed germination vigor. Furthermore, exposure of chromium (Cr) toxicity to 28 different rice varieties (NV1-NV14, HV1-HV14) caused noticeable plant biomass reduction. Subsequently, NV2, NV6, NV10, NV12, NV13 (normal type), HV1, HV4, HV8, and HV9 (hybrid types) were pragmatic as moderately sensitive varieties, while NV3, NV4, NV9, and NV14 (normal type), HV3, HV6, HV7, and HV13 were observed as moderately tolerant. Although, NV7, and HV10 were ranked most sensitive cultivars, and NV11, and HV14 were considered as most tolerant varieties as compared to the other rice (both groups) genotypes. Afterward, Cr induced reduction in chlorophyll pigments were significantly lesser in HV14 relative to NV11, NV7, and especially HV10, and as a result HV14 modulated the total soluble sugar level as well as reduced ROS accumulation, and MDA contents production by stimulating the antioxidant defense mechanism conspicuously which further reduced the electrolyte leakage as well. Our outcomes provide support to explore the Cr tolerance mechanism in cereal crops as well as knowledge about rice breeding with increased tolerance against Cr stress.ca_ES
dc.description.sponsorshipThis research was supported by National Natural Science Foundation of China (No. 32072127), Zhejiang Provincial Natural Science Foundation (No. LY21C130006), Dabeinong Funds for Discipline Development and Talent Training in Zhejiang University, Collaborative Innovation Center for Modern Crop Production co-sponsored by Province and Ministry (CIC-MCP) and Zhenjiang International-joint fund (No. GJ2020010). The authors would like to extend their sincere appreciation to the Researchers Supporting Project Number (RSP-2021/168), King Saud University, Riyadh, Saudi Arabia.ca_ES
dc.relation.isformatofReproducció del document publicat a
dc.relation.ispartofSaudi Journal of Biological Sciences, 2022, vol. 29, núm. 5, p. 3918 - 3928ca_ES
dc.rightscc-by-nc-nd, (c) Basit et al., 2022ca_ES
dc.subjectHydroponic screeningca_ES
dc.subjectOxidative damageca_ES
dc.subjectSeed germinationca_ES
dc.subjectStress toleranceca_ES
dc.subject.otherEstrès oxidatiuca_ES
dc.titleScreening of rice cultivars for Cr-stress response by using the parameters of seed germination, morpho-physiological and antioxidant analysisca_ES

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cc-by-nc-nd, (c) Basit et al., 2022
Except where otherwise noted, this item's license is described as cc-by-nc-nd, (c) Basit et al., 2022