Salt-Induced Damage is Alleviated by Short-Term Pre-Cold Treatment in Bermudagrass (Cynodon dactylon)

Fan, Jibiao; Xu, Jiawen; Zhang, Weihong; Amee, Maurice; Liu, Dalin; Chen, Liang

doi:10.3390/plants8090347

Cited by 12 publications

(6 citation statements)

References 72 publications

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“…In our study, GR24 could protect the chloroplast function and keep the chlorophyll content in alfalfa at a high level under drought stress. The OJIP transient of alfalfa changed significantly under drought stress, as shown in Figure 1a, which is consistent with bermudagrass's findings (Fan et al, 2019). JIP test analysis also illuminates that a number of energy flux and electron transport parameters, such as TRO/RC and REO/RC, in alfalfa PSII were dramatically transformed.…”

Section: Discussionsupporting

confidence: 90%

GR24 alleviates the adverse effects of drought stress on physiology and photosystem II function in alfalfa (Medicago Sativa L.)

Yang

et al. 2022

Grassland Science

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Drought is a major environmental stress that limits growth and development of plants.Strigolactone, a kind of carotenoid-derived sesquiterpenoid hormone, plays an important role in resisting abiotic stress for plants. In this study, alfalfa (Medicago Sativa L.) WL-712 was sprayed with GR24 (a synthetic strigolactone analog) at the concentration of 0.1 μM for 3 days under drought stress for 1 week. The results showed that GR24 treatment could increase the contents of soluble protein and soluble sugar and decrease the content of malondialdehyde, which negatively affected by drought stress in alfalfa.In addition, GR24 treatment significantly enhanced superoxide dismutase and the activities of peroxidase and catalase in alfalfa. The JIP test analysis also indicated that GR24 could alleviate photosynthesis negatively affected by drought stress. The expressions of genes related to photosynthesis were consistent with the changes of physiological indexes in alfalfa. This study indicated that GR24 could alleviate the adverse effects of drought stress on physiology and photosystem II function in alfalfa leaves.

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Section: Discussionsupporting

confidence: 90%

GR24 alleviates the adverse effects of drought stress on physiology and photosystem II function in alfalfa (Medicago Sativa L.)

Yang

et al. 2022

Grassland Science

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“…Although experiments on the influence of salinity during floods were not conducted, previous studies with physiologically and ecologically relevant species from the Poaceae family show that salinity has no significant effect on survival ability and growth response [13,17,20,22,23,27,28]. This is also consistent with the high salt-stress tolerance of C. dactylon established in a number of studies [40][41][42].…”

Section: Discussionsupporting

confidence: 72%

Flood Resilience, Viability, and Growth Response to Seawater Immersion of Bermudagrass (Cynodon dactylon (L.) Pers.)

Vergiev

2022

Sustainability

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A holistic approach to sustainable coastal zone management assigns the development of nature-based and low-cost strategies for coastal protection during extreme meteorological events. This determines the growing interest in plant species with high salt tolerance, and the study of their flood resilience in order to determine their capacity for flooding and erosion control. Bermudagrass (Cynodon dactylon (L.) Pers.), with its vast rhizome system, has the major characteristic features of useful plant stabilisers of coastal sand dunes. This study aims to define the effects of flooding stress caused by storms on viability, survival ability, and growth response of bermudagrass in flooding simulations in order to define its flooding resilience. C. dactylon showed high resilience and tolerance to salt from seawater during flooding simulations. The Critical Decomposition Time of C. dactylon is estimated at 144 h, which is more than the maximum-duration flood recorded for the Bulgarian Black Sea Coast. Untreated rhizomes showed less viability than those treated with seawater in flooding simulations. Changes in resistance, viability, biomass, and vegetative allocation were more significant, with the water as an influencing factor. The temperature of seawater and duration of submergence had no significant effect. As a median value species between psammophytes from the Poaceae family and the Cyperaceae family, bermudagrass can be used as a model plant in flooding simulations.

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“…Plasma membrane damage and chlorophyll degradation are common salt consequences in turfgrass (Fan et al, 2019;Liu et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

“…Plasma membrane damage and chlorophyll degradation are common salt consequences in turfgrass (Fan et al, 2019; Liu et al, 2016). EL and chlorophyll content were hence used as salt stress indicators in this project.…”

Section: Discussionmentioning

confidence: 99%

Physiological integration between Bermudagrass ramets improves overall salt resistance under heterogeneous salt stress

Yin

et al. 2022

Physiologia Plantarum

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Connected ramets of colonal plants often suffer from different environmental conditions such as light, nutrient, and stress. Colonal Bermudagrass (Cynodon dactylon [L.] Pers.) can form interconnected ramets and this connection facilitates the tolerance to abiotic stress, which is a kind of physiological integration. However, how bermudagrass responds to heterogeneously distributed salt stress needs to be further elucidated. Here, we demonstrated that severance of stolons aggravated the damage of salt‐stressed ramets, displaying higher relative electrolytic leakage (EL), lower content of chlorophyll, higher accumulation of Na+, and serious oxidative damages. This finding implied the positive effects of the physiological integration of bermudagrass on salt tolerance. The unstressed ramets connected with the stressed one were mildly injured, implying the supporting and sacrifice function of the unstressed ramets. Physiological integration did not mediate the translocation of Na+ among ramets, but induced a higher expression of salt overly sensitive (SOS) genes in the stressed ramets, consequently reducing the accumulation of Na+ in leaves and roots. In addition, physiological integration upregulated the genes expression and enzymes activity of catalase (CAT) and peroxidase (POD) in both stressed and unstressed ramets. This granted a stronger antioxidant ability of the whole clonal plants under salt stress. Enhanced Na+ transfer and increased reactive oxygen species (ROS) scavenging are mechanisms that likely contribute to the physiological integration leading to the salt tolerance of bermudagrass.

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Salt-Induced Damage is Alleviated by Short-Term Pre-Cold Treatment in Bermudagrass (Cynodon dactylon)

Cited by 12 publications

References 72 publications

GR24 alleviates the adverse effects of drought stress on physiology and photosystem II function in alfalfa (Medicago Sativa L.)

GR24 alleviates the adverse effects of drought stress on physiology and photosystem II function in alfalfa (Medicago Sativa L.)

Flood Resilience, Viability, and Growth Response to Seawater Immersion of Bermudagrass (Cynodon dactylon (L.) Pers.)

Physiological integration between Bermudagrass ramets improves overall salt resistance under heterogeneous salt stress

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