Publications by authors named "Keyun Feng"
Caffeic acid-3-O-methyltransferase (COMT) serves as the final pivotal enzyme in melatonin biosynthesis and plays a crucial role in governing the synthesis of melatonin in plants. This research used bioinformatics to analyze the phylogenetic relationships, gene structure, and promoter cis-acting elements of the upland cotton COMT gene family members， which it identified as the key gene GhCOMT33D to promote melatonin synthesis and responding to Cd stress. After silencing GhCOMT33D through virus-induced gene silencing (VIGS), cotton seedlings showed less resistance to Cd stress.
View Article and Find Full Text PDFArticle Synopsis
- - The study examines various fertilizer combinations (from no fertilizer to different mixes of chemical and organic fertilizers) and their effects on cotton yield and soil quality over a 10-year period.
- - Results indicated that the combination of 75% chemical and 25% organic fertilizer (M1) produced the highest cotton yield, while the 50% chemical and 50% organic fertilizer (M2) offered the best long-term sustainability in yield.
- - Key soil health indicators, like organic matter and nitrogen levels, improved significantly under the M1 treatment, suggesting effective fertilization strategies are crucial for maintaining soil quality and crop productivity.
Two genomic regions associated with FFBN and HFFBN and a potential regulatory gene (GhE6) of HFFBN were identified through the integration of RTM-GWAS and meta‑QTL analyses. Abstract The first fruit branch node (FFBN) and the height of the first fruit branch node (HFFBN) are two important traits that are related to plant architecture and early maturation in upland cotton. Several studies have been conducted to elucidate the genetic basis of these traits in cotton using biparental and natural populations.
View Article and Find Full Text PDFThe VIM (belonged to E3 ubiquitin ligase) gene family is crucial for plant growth, development, and stress responses, yet their role in salt stress remains unclear. We analyzed phylogenetic relationships, chromosomal localization, conserved motifs, gene structure, cis-acting elements, and gene expression patterns of the VIM gene family in four cotton varieties. Our findings reveal 29, 29, 17, and 14 members in Gossypium hirsutum (G.
View Article and Find Full Text PDFArticle Synopsis
- DNA methylation, a crucial epigenetic modification, is performed by cytosine-5 DNA methyltransferases (C5-MTases), but their roles in cotton have not been systematically studied until now.
- This research identified and categorized 33 C5-MTases from cotton's genomes, revealing conserved motifs and suggesting functional diversity, especially under stress conditions.
- Notably, silencing the GhDMT6 gene significantly affected cotton seedlings' stress resistance, highlighting the importance of C5-MTases in cotton's stress response mechanisms.
Plants experience diverse abiotic stresses, encompassing low or high temperature, drought, water logging and salinity. The challenge of maintaining worldwide crop cultivation and food sustenance becomes particularly serious due to drought and salinity stress. Sustainable agriculture has significant promise with the use of nano-biotechnology.
View Article and Find Full Text PDF[Effects of reduced chemical fertilizer with organic fertilizer application on soil microbial biomass, enzyme activity and cotton yield].
Ying Yong Sheng Tai Xue Bao
January 2020
The effects of 20%-40% fertilizer reduction and different organic fertilizers on soil microbial biomass, enzyme activity and cotton yield were examined for three consecutive years in Hexi area of Gansu, Northwest China. The results showed that compared with single chemical fertilizer application, the abundance of soil bacteria and actinomycetes were significantly increased while that of fungi were decreased with chemical fertilizer reduction combined with organic fertilizer. The abundance of soil bacteria was maximum under the treatment of chemical fertilizer reduction combined with common organic fertilizer and bio-organic fertilizer (COBF), which was 84.
View Article and Find Full Text PDFArticle Synopsis
- Researchers resequenced 419 cotton accessions revealing 3.66 million SNPs, linking them to various fiber-related traits through extensive phenotyping across 12 environments.
- A total of 7,383 SNPs significantly associated with traits like fiber length and strength were found, highlighting previously unknown genes and suggesting targets for future genetic improvement in cotton species.