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18 results for “Populus euphratica”
Data from: Populus euphratica WRKY1 binds the promoter of PeHA1 to enhance gene expression and salt tolerance
<p>Plasma membrane proton pumps play a crucial role in maintaining ionic homeostasis in salt-resistant <i><span>Populus euphratica</span></i> under saline conditions<i><span>. </span></i>High levels of NaCl (200 mM) induced <i><span>PeHA1</span></i> expression in <i><span>P. euphratica</span></i> roots and leaves. We isolated a 2022-bp promoter fragment upstream of the translational start of <i><span>PeHA1 </span></i>from<i><span> P. euphratica</span></i>. The promoter-reporter construct <i><span>PeHA1-pro</span></i>::<i><span>GUS</span></i> was transferred to tobacco plants, demonstrating that β-glucuronidase activities increased in root, leaf, and stem tissues under salt stress. DNA affinity purification sequencing revealed that PeWRKY1 protein targeted the<i><span> PeHA1</span></i> gene. We assessed the salt-induced transcriptional response of PeWRKY1 and its interaction with <i><span>PeHA1</span></i> in <i><span>P. euphratica</span></i>. PeWRKY1 binding to the <i><span>PeHA1 </span></i>W-box in promoter region was verified by a yeast one-hybrid assay, electrophoretic mobility shift assay, luciferase reporter assay, and virus-induced gene silencing. Transgenic tobacco plants overexpressing <i><span>PeWRKY1</span></i> had improved expression of <i><span>NtHA4, </span></i>which has a cis-acting W-box in the regulatory region, and H<sup><span>+</span></sup> pumping activity in both in vivo and in vitro assays. We conclude that salt stress upregulated <i><span>PeHA1</span></i> transcription due to the binding of PeWRKY1 to the W-box in the promoter region of <i><span>Pe</span></i><i><span>HA1</span></i>. Thus, we conclude that enhanced H<sup><span>+</span></sup> pumping activity enabled salt-stressed plants to retain Na<sup><span>+</span></sup> homeostasis.</p>
Populus euphratica WRKY1 binds the promoter of PeHA1 to enhance gene expression and salt tolerance
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Sex-specific non-structural carbohydrate variation and hydraulics explain differences in drought resistance of Populus euphratica females and males along an aridity gradient
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Phenotypic diversity of <em>Populus euphratica</em> and its environmental drivers in arid ecosystems
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Sex-specific strategies of nutrient resorption associated with leaf economics in Populus euphratica
<p><span>There are differences between sexes in physiological and functional traits and possibly in nutrient resorption, particularly in nutrient-poor environments. However, little is known about the extent of nutrient resorption from fine stems and fine roots, and how nutrient resorption is related to leaf economics in the males and females of dioecious trees.</span></p> <p><span>We investigated nutrient resorption of different organs and explored whether nutrient resorption is associated with nutrient conservation traits of leaves (e.g. leaf thickness, leaf mass per area, LMA) in <em>Populus euphratica</em> females and males in four natural forests along the Tarim River, China.</span></p> <p><span>Both female and male leaves had the highest N resorption efficiency (NRE), then stems and roots last. We found sexual dimorphism in leaf nutrient resorption at Shaya, Luntai, and Yuli forest sites, where <em>P. euphratica</em> males had higher leaf NRE than females, whereas females had a higher leaf P resorption efficiency (PRE). Moreover, the different nutrient resorption strategies were related to leaf economics. <em>P. euphratica</em> males possess a conservation strategy with a higher leaf thickness, LMA, and leaf vein density, which positively correlated with leaf NRE, while females with higher leaf PRE resorbed disproportionately more P for the reproductive investment.</span></p> <p><span><em>P. euphratica</em> males possess a conservation strategy with higher leaf NRE, while females have higher leaf PRE for reproductive investment. Due to sexual spatial segregation across environmental gradients, dioecious plants are especially vulnerable to future climate change. The differences in nutrient uptake and utilization strategies between females and males may result in a situation where one sex is more prone to future climate change than the other one. Such sex-specific nutrient resorption strategies are associated with leaf economics. The present study deepens our understanding of the plant nutrient balance and adaptation strategies under climate change.</span></p>
Covariations and tradeoffs of phosphorus (P) acquisition strategies in dioecious Populus euphratica as affected by soil water availability
<p>1. Dioecious species may be particularly vulnerable to climate change because they often exhibit skewed sex ratios that are reinforced by the physiological and biological specialization of each sex to specific microhabitats. Yet, it is unclear how differences in functional traits between female and male plants lead to sex-specific responses to drought and whether these responses are associated with phosphorus (P) acquisition diverge or converge.</p> <p>2. Here, we measured the morphological and physiological traits of roots, and the functional microorganisms related to P acquisition in <em>Populus euphratica</em> females and males in the rhizosphere under different water availability.</p> <p>3. The specific root length of females was greater than that of males, regardless of soil water availability. Therefore, the P concentration of females was significantly higher than that of males under well-watered conditions. In contrast, the physiological adjustment to drought showed distinct sexual patterns: males significantly increased the foliar manganese concentration and maintained higher acid phosphatase activities in the rhizosphere. Moreover, the arbuscular mycorrhizal hyphal biomass was reduced less in males than in females under water deficiency. Soil water shortage also decreased the α diversity of phosphate solubilizing bacteria (PSB) and changed the co-occurrence network in the rhizosphere of females, but it had little effect on males. Therefore, the favorable physiological processes and effective maintenance of functional microbial homeostasis in the rhizosphere were the reasons that enabled males to reduce P loss in leaves under water deficiency.</p> <p>4. Our study indicated that, within<em> P. euphratica</em> populations, covariations and tradeoffs simultaneously occurred among the three groups (root morphology, physiology, and functional microorganisms) of functional traits evaluated. More generally, the assessment of variations in sex-specific P acquisition strategies may help to understand the causes of sex ratio bias and how <em>P. euphratica</em> males and females mitigate resource shortage.</p>
Covariations and tradeoffs of phosphorus (P) acquisition strategies in dioecious Populus euphratica as affected by soil water availability
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Sex-specific strategies of nutrient resorption associated with leaf economics in Populus euphratica
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Genome-wide analysis of RNAs associated with Populus euphratica Oliv. heterophyll morphogenesis
GEO Series GSE120822. Populus euphratica. 24 samples. Type: Expression profiling by high throughput sequencing; Non-coding RNA profiling by high throughput sequencing.
Genome-wide analysis of RNAs associated with Populus euphratica Oliv. heterophyll morphogenesis [RNA-Seq]
GEO Series GSE120818. Populus euphratica. 12 samples. Type: Expression profiling by high throughput sequencing; Non-coding RNA profiling by high throughput sequencing.
Genome-Wide Identification of ABA Responsive microRNAs in the stem of Populus euphratica
GEO Series GSE107822. Populus euphratica. 9 samples. Type: Non-coding RNA profiling by high throughput sequencing.
Genome-Wide Identification of ABA Responsive microRNAs in the Root of Populus euphratica
GEO Series GSE107802. Populus euphratica. 9 samples. Type: Non-coding RNA profiling by high throughput sequencing.
Genome-wide analysis of RNAs associated with Populus euphratica Oliv. heterophyll morphogenesis [miRNA-Seq]
GEO Series GSE120821. Populus euphratica. 12 samples. Type: Non-coding RNA profiling by high throughput sequencing.
A Genome-Wide Characterization of New and Drought Stress Responsive MicroRNAs in Populus euphratica
GEO Series GSE25747. Populus euphratica. 2 samples. Type: Expression profiling by high throughput sequencing.
Genome-Wide Identification of ABA Responsive microRNAs in the root and stem of Populus euphratica
GEO Series GSE107823. Populus euphratica. 18 samples. Type: Non-coding RNA profiling by high throughput sequencing.
Transcript expression data from Populus euphratica leaves subjected to drought
GEO Series GSE23637. Populus euphratica; Populus sp.. 10 samples. Type: Expression profiling by array.
Transcript expression data from Populus euphratica shoots subjected to salt stress
GEO Series GSE52305. Populus euphratica; Populus sp.. 13 samples. Type: Expression profiling by array.
Transcript expression data from Populus euphratica leaves subjected to infection by Marssonina pathogen
GEO Series GSE23726. Populus deltoides; Populus sp.. 6 samples. Type: Expression profiling by array.
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