Publications by authors named "Chun Mei Yin"
The arms race between fungal pathogens and plant hosts involves recognition of fungal effectors to induce host immunity. Although various fungal effectors have been identified, the effector functions of ribonucleases are largely unknown. Herein, we identified a ribonuclease secreted by Verticillium dahliae (VdRTX1) that translocates into the plant nucleus to modulate immunity.
View Article and Find Full Text PDFSecreted small cysteine-rich proteins (SCPs) play a critical role in modulating host immunity in plant-pathogen interactions. Bioinformatic analyses showed that the fungal pathogen Verticillium dahliae encodes more than 100 VdSCPs, but their roles in host-pathogen interactions have not been fully characterized. Transient expression of 123 VdSCP-encoding genes in Nicotiana benthamiana identified three candidate genes involved in host-pathogen interactions.
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- Verticillium dahliae is a soil fungus known for causing vascular wilt in various plants and can survive long periods in the soil by forming resilient structures called microsclerotia.
- The VdSho1 protein in V. dahliae serves as an osmosensor for the fungus, playing a crucial role in both penetrating plant tissues and synthesizing melanin; deletion of VdSho1 impairs these functions.
- The study identifies a signaling pathway involving Vst50, Vst11, and Vst7, which regulates VdSho1's role in plant invasion and melanin production, highlighting their importance to the fungus's virulence.
Improving genetic resistance is a preferred method to manage Verticillium wilt of cotton and other hosts. Identifying host resistance is difficult because of the dearth of resistance genes against this pathogen. Previously, a novel candidate gene involved in Verticillium wilt resistance was identified by a genome-wide association study using a panel of Gossypium hirsutum accessions.
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- Verticillium dahliae is a pathogen causing wilts in plants, leading to severe defoliation, with its underlying mechanisms still not fully understood.
- Research involved various methods like genome sequencing and gene analysis, revealing the importance of specific genes (VdDf) in the defoliating strains of V. dahliae.
- Notably, compounds like N-lauroylethanolamine (NAE) are linked to defoliation, suggesting that VdDfs influence the production of secondary metabolites responsible for the defoliation phenotype by affecting hormone sensitivity and plant responses.
Article Synopsis
- * This study identified 30 CRK genes in cotton's genome, with significant clusters found on chromosomes A06 and D06, indicating that gene expansion may have occurred through tandem duplication.
- * Examining gene expression showed that nine specific CRK genes were activated in response to VW infection, and silencing these genes reduced resistance to the disease, highlighting their crucial role in cotton's defense mechanisms.
Effects of rice straw mulching on NO emissions and maize productivity in a rain-fed upland.
Environ Sci Pollut Res Int
March 2018
In the hilly areas of southern China, uplands and paddies are located adjacent to each other. Using rice straw as mulch for upland soil may improve crop production and partially replace chemical fertilizers, which may mitigate NO emissions. A field experiment was conducted to investigate the potential of rice straw mulching for mitigating NO emissions and increasing crop production.
View Article and Find Full Text PDFRice cultivation has been challenged by increasing food demand and water scarcity. We examined the responses of water use, grain yield, and water productivity to various modes of field water managements in Chinese double rice systems. Four treatments were studied in a long-term field experiment (1998-2015): continuous flooding (CF), flooding-midseason drying-flooding (F-D-F), flooding-midseason drying-intermittent irrigation without obvious standing water (F-D-S), and flooding-rain-fed (F-RF).
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- The study aimed to examine how laccase activity relates to the growth of different Ganoderma species and to identify the strains that produce the highest levels of laccase.
- Mycelium was grown on PDA solid medium, and laccase activity was measured using the ABTS+ method, while polysaccharide content was evaluated with a phenol sulfuric acid method.
- Results showed that Ganoderma gibbosum outperformed others in growth and laccase production, achieving maximum activity on the fourth day, indicating it as the best strain for laccase production compared to Ganoderma lucidum.
[Effects of straw mulching on CO2 flux in wintry fallow paddy field].
Ying Yong Sheng Tai Xue Bao
January 2008
This paper studied the effects of straw mulching on the CO2 flux in a wintry fallow paddy field at Taoyuan Agro-ecological Station, Chinese Academy of Sciences. The results showed that the effects of straw mulching mainly exerted in two ways. First, it positively affected soil temperature, making the CO2 flux increased obviously.
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