Defoliation facilitates Leymus chinensis clones spatial expansion into saline-alkali soils under different population densities

Xu, Tongtong; Abdullah, Iram; Akram, Nudrat Aisha; Wang, Ying; Zhang, Li; Feng, Xinyue; Wang, Jian Yong

doi:10.1016/j.flora.2022.152154

Cited by 3 publications

(2 citation statements)

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“…This evidence has been obtained both in field surveys and under controlled conditions, but its fragmentary nature does not allow general conclusions to be drawn. There is no doubt that the strategy of placement of ramets is affected by heterogeneous salinity in field conditions, as shown for Ambrosia psilostachya [265], Hydrocotyle bonariensis [102], Spartina patens and Distichlis spicata [170], Leymus chinensis [201]. It seems that resource allocation between clonal vs. photosynthesizing structures or storage structures is affected by salinity, as shown both in field studies and experiments in controlled conditions.…”

Section: How Salinity Affects Clonal Growth Characteristics?mentioning

confidence: 91%

“…It seems that the species efficiently use clonal integration in order to compensate for the salinity-induced decrease in ramet density with an increase in the biomass of individual ramets. Also, defoliation of L. chinensis plants cultivated in low salinity conditions promoted rhizome elongation and establishment of new ramets, resulting in an expansion into saline-alkali soil patches [201]. Moreover, in a homogeneous environment, leaf clipping resulted in the inhibition of biomass accumulation and rhizome expansion, but such an effect was insignificant for plants grown in soil with saline-alkaline patches [202].…”

Section: Leymus Sppmentioning

confidence: 99%

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Halophytic Clonal Plant Species: Important Functional Aspects for Existence in Heterogeneous Saline Habitats

Ievinsh

2023

Plants

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Plant modularity-related traits are important ecological determinants of vegetation composition, dynamics, and resilience. While simple changes in plant biomass resulting from salt treatments are usually considered a sufficient indicator for resistance vs. susceptibility to salinity, plants with a clonal growth pattern show complex responses to changes in environmental conditions. Due to physiological integration, clonal plants often have adaptive advantages in highly heterogeneous or disturbed habitats. Although halophytes native to various heterogeneous habitats have been extensively studied, no special attention has been paid to the peculiarities of salt tolerance mechanisms of clonal halophytes. Therefore, the aim of the present review is to identify probable and possible halophytic plant species belonging to different types of clonal growth and to analyze available scientific information on responses to salinity in these species. Examples, including halophytes with different types of clonal growth, will be analyzed, such as based on differences in the degree of physiological integration, ramet persistence, rate of clonal expansion, salinity-induced clonality, etc.

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