Physiological integration for salinity stress alleviation in stoloniferous turfgrass, Zoysia matrella in heterogeneous saline environments

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

“…Na + accumulated significantly less in stressed ramets and whole plants when physiological integration occurred. This finding agrees with previous results in Paspalum paspaloides (Xing et al, 2019) and Zoysia matrella (Sugiura & Takahashi, 2021) and highlights an important mechanism of physiological integration enhancing salt tolerance. Na + is absorbed by the root system and is transported via the vascular system from root to shoot when plants suffer from salt stress (Foster & Miklavcic, 2019).…”

“…This finding may be explained by the strengthened water absorption of unstressed ramets. This strategy induced the transportation of water from unstressed ramets to stressed ramets, thereby diluting Na + and reducing salinity absorption (Narvaez‐Ortiz et al, 2018; Sugiura & Takahashi, 2021).…”

“…Stolon is an important conducting tissue. It was documented that there was no translocation of Na + among ramets (Sugiura & Takahashi, 2021), whereas stolons before growing up to ramets experienced Na + translocation in Zoysia matrella (Sugiura et al, 2017). However, recent studies on an amphibious plant, Paspalum paspaloides , showed that translocation of Na + to other ramets was important for sharing salt injury (Xing et al, 2019).…”

“…Ramets located in favorable conditions can serve as a donor, supporting recipient ramets suffering from stress (Li et al, 2011). Physiological integration is reported to facilitate the performance of ramets located in saline habitats (Narvaez‐Ortiz et al, 2018; Sugiura & Takahashi, 2021; Xing et al, 2019). However, only a few studies focused on the effects of physiological integration on the supporting ramets.…”

Effects of Supplemental Potassium on the Growth, Photosynthetic Characteristics, and Ion Content of Zoysia matrella under Salt Stress

“…They also found that augmenting the content of polyamines could mitigate the oxidative stress and hypertonic damage induced by salt stress [19]. Sugiura et al found that under salt stress, Z. matrella diluted salt by shifting water between stolons, stored salt in brown leaves, and activated the defoliation mechanism of brown leaves to alleviate salt stress [20]. However, with the increase in the degree of soil salinization and the aggravation of saline irrigation problems, the salt damage of zoysiagrass was aggravated.…”