Effects of Shade Stress on Growth and Responsive Mechanisms of Bermudagrass (Cynodon dactylon L.)

Noor, Maryam; Fan, Jibiao; Zhang, Jing-Xue; Zhang, Chuanjie; Sun, Shengnan; Gan, Lu; Yan, Xuebing

doi:10.1007/s00344-023-10920-5

Cited by 3 publications

(2 citation statements)

References 83 publications

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“…Proline has strong hydrophilic ability which has a protective role in cell membrane structure. It also has role in scavenging of singlet oxygen and hydroxyl ion [33]. On other way, proline stimulates the enzymatic antioxidants to remove ROS [34].…”

Section: Discussionmentioning

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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Section: Discussionmentioning

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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“…When exposed to high salinity for an extended period of time and salt continues to build up in the leaves, the photosynthetic machinery suffers permanent damage along with a decrease in ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) activity [81]. Low external water potential, ion imbalance, and particular ion toxicity were the causes of the reduced accumulation of shoot dry matter caused by salt [82].…”

Section: Figure V: About Here Discussionmentioning

confidence: 99%

Silica nanoparticle: Eco-friendly Waste Having Potential for Seed Germination of Wheat (Triticum turgidumL. Var. Sham) Under Salt Stress Conditions

Al-Tabbal

Al-Harahsheh

Al-Zou’by

et al. 2023

Preprint

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The germination, development, and production of directly seeded agricultural products may be impacted by a variety of abiotic stresses. Silica nanoparticle seed priming may be able to reduce these external stressors. Stress brought on by salt has now become a barrier to wheat (Triticum turgidum) farming success. The goal of the current research was to clarify the effectiveness of seed priming with silica nanoparticles in reducing salt-induced stress in wheat plants. In this research, silica nanoparticle at three distinct concentrations—300, 600 and 900 ppm—was used for seed priming either alone or in combination with sodium chloride (2.3 and 4.6 ds/m). The application of silica nanoparticles considerably improved seedling development while salinity stress greatly decreased germination percent and seedling growth. Seed priming significantly increased shoot length (11.53%) , root length (22.76%) , seedling length (17.57%) , shoot weight (35.56%) , root weight (19.14%) , germination stress tolerance index (91.55%), shoot length stress tolerance index (11.58%), root length stress tolerance index (22.6%), shoot weight stress tolerance index (35.54%) and root weight stress tolerance index (18.12%) under high saline treatment (4.6 ds/m). The significance of nano-silica in reducing the detrimental effects of salt stress on wheat seed growth is highlighted by the current investigation. The results showed that silica nanoparticle seed priming could enhance seedling early development under salt stress.

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Response mechanism of Cynodon dactylon to flooding stress based on integrating metabonomics and transcriptomics analysis

Zhao,

Feng,

Shao

et al. 2024

Environmental and Experimental Botany

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Effects of Shade Stress on Growth and Responsive Mechanisms of Bermudagrass (Cynodon dactylon L.)

Cited by 3 publications

References 83 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

Silica nanoparticle: Eco-friendly Waste Having Potential for Seed Germination of Wheat (Triticum turgidumL. Var. Sham) Under Salt Stress Conditions

Response mechanism of Cynodon dactylon to flooding stress based on integrating metabonomics and transcriptomics analysis

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