Leaf Cuticular Waxes of Bermudagrass Response to Environment‐Driven Adaptations of Climate Effect Inferred from Latitude and Longitude Gradient in China

Chen, Chen; Chen, Zhao; Chen, Ming‐Hui; Zhang, Jingxue; Wang, Liwen; Yan, Xuebing

doi:10.1002/cbdv.202201104

Cited by 3 publications

(1 citation statement)

References 53 publications

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“…The primers used are listed in table (Table 2). CdACTIN was used as reference gene [26]. Each sample had three biological replicates.…”

Section: Gene Expression Traits Rna Extraction and Gene Expression An...mentioning

confidence: 99%

Assessment of the changes in growth, photosynthetic traits and gene expression in Cynodon dactylon against drought stress

Noor,

Fan,

Kaleem

et al. 2024

BMC Plant Biol

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Drought stress considered a key restrictive factor for a warm-season bermudagrass growth during summers in China. Genotypic variation against drought stress exists among bermudagrass (Cynodon sp.), but the selection of highly drought-tolerant germplasm is important for its growth in limited water regions and for future breeding. Our study aimed to investigate the most tolerant bermudagrass germplasm among thirteen, along latitude and longitudinal gradient under a well-watered and drought stress condition. Current study included high drought-resistant germplasm, “Tianshui” and “Linxiang”, and drought-sensitive cultivars; “Zhengzhou” and “Cixian” under drought treatments along longitude and latitudinal gradients, respectively. Under water deficit conditions, the tolerant genotypes showed over-expression of a dehydrin gene cdDHN4, antioxidant genes Cu/ZnSOD and APX which leads to higher antioxidant activities to scavenge the excessive reactive oxygen species and minimizing the membrane damage. It helps in maintenance of cell membrane permeability and osmotic adjustment by producing organic osmolytes. Proline an osmolyte has the ability to keep osmotic water potential and water use efficiency high via stomatal conductance and maintain transpiration rate. It leads to optimum CO2 assimilation rate, high chlorophyll contents for photosynthesis and elongation of leaf mesophyll, palisade and thick spongy cells. Consequently, it results in elongation of leaf length, stolon and internode length; plant height and deep rooting system. The CdDHN4 gene highly expressed in “Tianshui” and “Youxian”, Cu/ZnSOD gene in “Tianshui” and “Linxiang” and APX gene in “Shanxian” and “Linxiang”. The genotypes “Zhongshan” and “Xiaochang” showed no gene expression under water deficit conditions. Our results indicate that turfgrass show morphological modifications firstly when subjected to drought stress; however the gene expression is directly associated and crucial for drought tolerance in bermudagrass. Hence, current research has provided excellent germplasm of drought tolerant bermudagrass for physiological and molecular study and future breeding.

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“…The primers used are listed in table (Table 2). CdACTIN was used as reference gene [26]. Each sample had three biological replicates.…”

Section: Gene Expression Traits Rna Extraction and Gene Expression An...mentioning

confidence: 99%

Assessment of the changes in growth, photosynthetic traits and gene expression in Cynodon dactylon against drought stress

Noor,

Fan,

Kaleem

et al. 2024

BMC Plant Biol

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Evaluation of different bermudagrass germplasm at physiological and molecular level under shade along longitudinal and latitudinal gradients

Noor,

Kaleem,

Akhtar

et al. 2024

BMC Plant Biol

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Responses of turfgrass to shade vary in individual species, and the degree and quality of low light; therefore, the selection of low light tolerant cultivars of turfgrass is important and beneficial for turf management rather than other practices. The stolons of thirteen bermudagrass genotypes were planted with two treatments and three replications of each treatment to establish for one month in the Yangzhou University Jiangsu China greenhouse. The established plants were transferred outside of the greenhouse, and 50% shading was applied to them with a black net. After 30 days of stress treatment, the morpho-physiological and biochemical analyses were performed. The expression of genes such as HEMA, HY5, PIF4, and Cu/ZnSOD was assessed. Cynodon dactylon is a C4, and perennial that grows as lawn grass and is used as forage. Based on different indicator measurements, the most shade-tolerant germplasm was L01 and L06 along the longitudes and L09 and L10 along the latitudes. At the same time, L02 and L08 were more susceptible, respectively. However, germplasm showed greater tolerance in higher latitudes while longitudinal plants showed less stress response. The current study aimed (1) to screen out the most shade-tolerant Cynodon dactylon genotype among 13 along longitudinal and latitudinal gradients in China. (2) to examine morpho-physiological indicators of different bermudagrassgenotypes; (3) to evaluate if and how differences in various indicators of bermudagrass correlated with geographic region. This study will significantly advance the use of Cynodon germplasm in breeding, genomics, management, nomenclature, and phylogeographical study. It will decisively define whether natural selection and migration can drive evolutionary responses for populations to adapt to their new environments effectively.

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Progress and prospects of bermudagrass research in the last decade

Fan,

Xiang,

Zhang

et al. 2024

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Leaf Cuticular Waxes of Bermudagrass Response to Environment‐Driven Adaptations of Climate Effect Inferred from Latitude and Longitude Gradient in China

Cited by 3 publications

References 53 publications

Assessment of the changes in growth, photosynthetic traits and gene expression in Cynodon dactylon against drought stress

Assessment of the changes in growth, photosynthetic traits and gene expression in Cynodon dactylon against drought stress

Evaluation of different bermudagrass germplasm at physiological and molecular level under shade along longitudinal and latitudinal gradients

Progress and prospects of bermudagrass research in the last decade

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