Interspecific Integration of Chemical Traits in Desert Plant Leaves with Variations in Soil Water and Salinity Habitats

Yang, Jifen; Zhang, Xueni; Song, Danhong; Wang, Yongchang; Tian, Jingye

doi:10.3390/f14101963

Cited by 4 publications

(3 citation statements)

References 69 publications

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“…The characteristics of plant trait networks can reflect the interaction between plants and the environment from a holistic perspective. The nodes represent the plant traits, and the lines between the nodes represent the correlations between the plant traits [37]. The correlations between the plant traits indicate the interactions between the traits [38].…”

Section: Data Analysis Methodsmentioning

confidence: 99%

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Variations in Physiological and Biochemical Characteristics of Kalidium foliatum Leaves and Roots in Two Saline Habitats in Desert Region

Jiang,

Wu,

et al. 2024

Forests

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Salt stress is a key environmental factor that has adverse effects on plant growth and development. High salinity induces a series of structural and functional changes in the morphological and anatomical features. The physiological and biochemical changes in K. foliatum in response to salt stress in natural environments are still unclear. Based on this, this study compared and analyzed the differences in the physiological and biochemical indicators between the leaf and root tissues in high-salt and low-salt habitats, selecting K. foliatum as the research object. The results showed that the chlorophyll contents in the leaves of K. foliatum decreased in the high-salt habitat, while the thicknesses of the upper and lower epidermises, as well as the thicknesses of the palisade tissue, significantly increased. The high-salt environment led to decreases in the N and P contents in the leaves and root tissues of K. foliatum, resulting in changes in the stoichiometric ratio of elements. The concentrations of C, N, and P in the roots of K. foliatum were lower than those in the leaves. The accumulation of Na+ in the K. foliatum roots was greater than that in the leaves, and the roots could promote the transport of sodium ions to the leaves. The contents of starch and soluble sugar in the leaves showed higher proportions in the high-salt habitat than in the low-salt habitat, while the changes in the roots and leaves were the opposite. As the salt content increased, the proline contents in the leaves and roots of K. foliatum significantly increased, and the proline contents in the roots of K. foliatum were lower than those in the leaves. The leaves and roots exhibited higher levels of peroxidase and superoxide enzymes in the high-salinity habitat than in the low-salinity habitat. The superoxide dismutase (SOD) activity of the K. foliatum leaves and catalase (CAT) activity of the roots were the “central traits” in the high-salt habitat. In the low-salt habitat, the leaf malondialdehyde (MDA) and root C/N were the central traits of the leaves and roots, indicating that K. foliatum adapts to changes in salt environments in different ways.

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Section: Data Analysis Methodsmentioning

confidence: 99%

“…A correlation coefficient greater than 0.7 and p < 0.05 was considered to be a significant correlation between traits. The trait with the highest degree represented the "central trait" in the network [37]. Finally, Cytoscape software (Cytoscape 3.9.1) was used to visualize the network of plant functional traits.…”

Section: Data Analysis Methodsmentioning

confidence: 99%

Variations in Physiological and Biochemical Characteristics of Kalidium foliatum Leaves and Roots in Two Saline Habitats in Desert Region

Jiang,

Wu,

et al. 2024

Forests

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“…The adaptability of plants to a drought environment is realized through a series of complex physiological and biochemical mechanisms, including not only the absorption and efficient use of water but also the adjustment of their internal physiological and biochemical traits under drought stress. In order to clarify the adaptation strategies of desert plants in different habitats, Yang et al [6] focused on the interspecific integration of chemical traits in desert plant leaves with variations in soil water and salt habitats and found that the interspecific integration of plant leaf chemical traits in high water-salinity habitats was higher than that in low water-salinity habitats. Trait networks showed that C and Ca were the core leaf chemical traits for desert plant growth.…”

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confidence: 99%

Plant Adaptation to Extreme Environments in Drylands—Series II: Studies from Northwest China

Yang,

Li,

et al. 2024

Forests

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Difference in summer heatwave-induced damage between desert native and urban greening plants in an arid desert region

Li,

Sun,

et al. 2024

PLoS ONE

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Summer heatwaves have caused a distinct mortality between urban greening and native plants. However, there are insufficient studies revealing the underlying mechanisms. We hypothesized that differentiation in hydraulic traits and their integration cause the varied heatwave-induced damages between the two plant types. To prove it, three desert native species and five urban greening species were selected as the experimental objects. Then, the number of damaged individuals caused by summer heatwaves were investigated based on the 100 individuals for each species. The hydraulic traits (including hydraulic transport, photosynthetic and leaf traits) of 3–5 mature individuals were measured for each species. The comparative analysis (independent sample t test and one-way ANOVA) and the collaborative analysis (Pearson correlation and network analysis) were used to reveal the differences in heatwave-induced damage, hydraulic traits and their integration between urban greening and native plants. Our results showed that the heatwave-induced damage to urban greening plants was larger than that to native species. Water potentials of leaf and branch in pre-dawn and midday, P50, leaf dry matter content, net photosynthetic rate, transpiration rate and stomatal conductance of desert native species were significantly lower than those of urban greening plants (P < 0.05), while twig specific hydraulic conductivity, Huber value, wood density, intrinsic water use efficiency and the specific leaf area showed opposite patterns (P < 0.05). Trait integration of desert native species (0.63) was much higher than greening plants (0.24). Our results indicate that artificial urban greening plants are more susceptible to drought stress caused by heatwaves than native desert species. In the context of global climate change, in order to maintain the stability and function of urban ecosystems in extreme climate, the screening of greening plants should start from the perspective of hydraulics and trait integration, and more native species with strong drought adaptability should be planted.

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Interspecific Integration of Chemical Traits in Desert Plant Leaves with Variations in Soil Water and Salinity Habitats

Cited by 4 publications

References 69 publications

Variations in Physiological and Biochemical Characteristics of Kalidium foliatum Leaves and Roots in Two Saline Habitats in Desert Region

Variations in Physiological and Biochemical Characteristics of Kalidium foliatum Leaves and Roots in Two Saline Habitats in Desert Region

Plant Adaptation to Extreme Environments in Drylands—Series II: Studies from Northwest China

Difference in summer heatwave-induced damage between desert native and urban greening plants in an arid desert region

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