Publications by authors named "Xin-Li Xia"

Intercellular communication mediated by CLAVATA3/EMBRYO SURROUNDING REGION-RELATED (CLE) peptides and their receptors is crucial for plant development and environmental adaptation. In this study, 45 and 89 were identified in and × , respectively, and, together with the 52 in , the chromosome localization, gene and protein characteristics, collinearity and gene duplication events, cis-acting regulatory elements in promoters and evolutionary relationships of in these three poplar species were analyzed. The of three poplar species were divided into four subfamilies.

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Non-photochemical quenching (NPQ) has been regarded as a safety valve to dissipate excess absorbed light energy not used for photochemistry. However, there exists no general consensus on the photoprotective role of NPQ. In the present study, we quantified the Photosystem II (PSII) photo-susceptibilities (mpi) in the presence of lincomycin, under red light given to five shade-acclimated tree species grown in the field.

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Article Synopsis
  • This study examined various drought-resistant tree species in China and aimed to evaluate their growth and adaptability across different locations in Inner Mongolia.
  • Four specific tree species from multiple provenances were analyzed, and the research used a model to assess their adaptability and stability based on growth and physiological characteristics in varying soil and climate conditions.
  • Results showed that certain tree species thrived better in specific soil types, with particular provenances exhibiting superior growth adaptability, making them suitable for afforestation in similar drought-prone areas.
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Water deficit is a serious environmental factor limiting the growth and productivity of plants worldwide. Improvement of drought tolerance and efficient water use are significant strategies to overcome this dilemma. In this study, a drought-responsive transcription factor, nuclear factor Y subunit B 7 (PdNF-YB7), induced by osmotic stress (PEG6000) and abscisic acid, was isolated from fast-growing poplar clone NE-19 [Populus nigra × (Populus deltoides × Populus nigra)].

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Background: Xanthoceras sorbifolia Bunge is a valuable oilseed tree that has linoleic acid-rich seed oil. Microsomal oleate desaturase (FAD2; EC 1.3.

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Water deficiency causes a dramatic reduction in crop production globally. Breeding crop varieties that are more efficient in their water use is one strategy to overcome this predicament. In this study, a member of the LRR-RLKs family, the Populus nigra × (Populus deltoides × Populus nigra) ERECTA (PdERECTA) gene was cloned.

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The plant-specific GRAS/SCL transcription factors play diverse roles in plant development and stress responses. In this study, a poplar SCL gene, PeSCL7, was functionally characterized in Arabidopsis thaliana, especially with regard to its role in abiotic stress resistance. Expression analysis in poplar revealed that PeSCL7 was induced by drought and high salt stresses, but was repressed by gibberellic acid (GA) treatment in leaves.

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The vacuolar NHX-type Na(+)/H(+) exchangers play a key role in salt tolerance in plants. However, little is known about the Na(+)/H(+) exchangers in the salt-resistant tree, Populus euphratica. In this study, we identified six putative vacuolar Na(+)/H(+) exchanger genes from P.

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The Populus euphratica stress responsive zinc-finger protein gene PSTZ, which encodes a protein including typical Cys(2)/His(2) zinc finger structure, was isolated by reverse transcription-polymerase chain reaction from P. euphratica. Northern hybridization revealed that its expression was induced under drought and salt stress conditions.

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DNA methylation is an important epigenetic modification and multiple factors interact to regulate the establishment and maintenance of DNA methylation in plant genome. Different methylation sites require different cytosine methyltransferases, which contribute to the modification of chromatin structure and mediate epigenetics with chromatin remodeling enzymes and histone modifying factors. DNA glycosylases can remove DNA methylation and alleviate silencing.

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Zinc finger proteins belong to a family of nuclear transcription factors which function is to regulate gene expression in both prokaryotic and eukaryotic cells. A pair of primers was designed after analyzing the conservation of salt-tolerant zinc protein Alfin-1 in such diverse plants as alfalfa and Arabidopsis. The zinc finger protein gene is isolated from total RNA with RT-PCR in aquaculture leaves of Populus euphratica .

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