Publications by authors named "Zhixin Xiang"

Background: Upland rice varieties exhibit significant genetic diversity and broad environmental adaptability, making them ideal candidates for identifying consistently expressed stress-responsive genes. F-box proteins typically function as part of the SKP1-CUL1-F-box protein (SCF) ubiquitin ligase complexes to precisely regulate gene expression and protein level, playing essential roles in the modulation of abiotic stress responses. Therefore, utilizing upland rice varieties for screening stress-responsive F-box genes is a highly advantageous approach.

View Article and Find Full Text PDF
Article Synopsis
  • - Identification of serine acetyltransferase (SAT) and O-acetyl serine (thiol) lyase (OASTL) genes in Cardamine hupingshanensis underscores their role in synthesizing selenocysteine (Sec), a crucial compound for plant metabolism under selenium stress.
  • - Through genome-wide analysis, the study categorized the ChSAT and ChOASTL genes into distinct groups, revealing evolutionary patterns and significant expression differences across plant tissues in response to varying selenium levels.
  • - Silencing specific ChSAT and ChOASTL genes via the VIGS system aimed to clarify their roles in selenium metabolism, aiding future research on how plants manage selenium stress.
View Article and Find Full Text PDF

Objective: Schizophrenia is a complex and devastating psychiatric disorder with a strong genetic background. However, much uncertainty still exists about the role of genetic susceptibility in the pathophysiology of schizophrenia. TEA domain transcription factor 1 (TEAD1) is a transcription factor associated with neurodevelopment and has modulating effects on various nervous system diseases.

View Article and Find Full Text PDF

Schizophrenia is a devastating neuropsychiatric disorder affecting 1% of the world population and ranks as one of the disorders providing the most severe burden for society. Schizophrenia etiology remains obscure involving multi-risk factors, such as genetic, environmental, nutritional, and developmental factors. Complex interactions of genetic and environmental factors have been implicated in the etiology of schizophrenia.

View Article and Find Full Text PDF

Hydrogen sulfide (H S) promotes plant tolerance against various environmental cues, and d-cysteine desulfhydrase (DCD) is an enzymatic source of H S to enhance abiotic stress resistance. However, the role of DCD-mediated H S production in root growth under abiotic stress remains to be further elucidated. Here, we report that DCD-mediated H S production alleviates osmotic stress-mediated root growth inhibition by promoting auxin homeostasis.

View Article and Find Full Text PDF

A new flavonoid angelioue (1) together with five known compounds cuminatanol (2), myricetin (3), epigallocatechin (4), taxifolin (5) and dihydromyricetin (6) was isolated from the callus extract of (Hand.-Mazz.) W.

View Article and Find Full Text PDF

As a member of the nuclear receptor (NR) superfamily, pregnane X receptor (PXR; NR1I2) is a ligand-activated transcription factor that plays a crucial role in the metabolism of xenobiotics and endobiotics in mammals. The tissue distribution of PXR is parallel to its function with high expression in the liver and small intestine and moderate expression in the kidney, stomach, skin, and blood-brain barrier, which are organs and tissues in frequent contact with xenobiotics. PXR was first recognized as an exogenous substance receptor regulating metabolizing enzymes and transporters and functioning in detoxification and drug metabolism in the liver.

View Article and Find Full Text PDF

Adventitious rooting is a heritable quantitative trait that is influenced by multiple endogenous and exogenous factors in plants, and one important environmental factor required for efficient adventitious root formation is light signaling. However, the physiological significance and molecular mechanism of light underlying adventitious root formation are still largely unexplored. Here, we report that blue light-induced adventitious root formation is regulated by PIN-FORMED3 (PIN3)-mediated auxin transport in Arabidopsis.

View Article and Find Full Text PDF

Osmotic stress influences root system architecture, and polar auxin transport (PAT) is well established to regulate root growth and development. However, how PAT responds to osmotic stress at the molecular level remains poorly understood. In this study, we explored whether and how the auxin efflux carrier PIN-FORMED3 (PIN3) participates in osmotic stress-induced root growth inhibition in Arabidopsis (Arabidopsis thaliana).

View Article and Find Full Text PDF

Although the key role of methane (CH4) in the induction of cucumber adventitious rooting has been observed previously, the target molecules downstream of the CH4 action are yet to be fully elucidated. Here, we reported that exogenous glutathione (GSH) induced cucumber adventitious root formation; while l-buthionine-sulfoximine (BSO) treatment inhibited it. BSO is a known inhibitor of γ-glutamyl cysteine synthetase (γ-ECS), an enzyme involved in GSH biosynthesis.

View Article and Find Full Text PDF

Previous results have shown that hydrogen sulfide (HS), mainly catalyzed by l-cysteine desulfhydrase (DES) in plants, triggers adventitious rooting. The objective of this study was to test whether HS is involved in methane (CH)-induced adventitious root development in cucumber explants. First, we observed that the activities of DES, endogenous HS production, and thereafter adventitious root development were induced by CH and NaHS (an HS donor).

View Article and Find Full Text PDF

Our previous studies revealed that methane (CH ) induces adventitious rooting in cucumber. However, the corresponding molecular mechanism is still elusive. In this work, we discovered that CH triggered the accumulation of nitric oxide (NO) and thereafter cucumber adventitious rooting, mimicking the inducing effects of sodium nitroprusside (SNP) and NONOate (two NO-releasing compounds).

View Article and Find Full Text PDF