Plants repress ROS1 expression to attenuate heat-induced transposon burst.

The active DNA demethylase Repressor of Silencing 1 (ROS1) regulates genomic DNA methylation patterns during plant development. ROS1 expression is promoted by DNA methylation within its promoter region. However, the mechanisms and biological significance of ROS1 regulation under abiotic stresses remain elusive.

The Analysis of the Glycosyltransferase Activity Gene Family in and Functional Verification of Conferring Resistance to Verticillium Wilt.

Glycosyltransferases () play an important role in plant growth and development, as well as responses to biotic and abiotic stresses. However, the function of the family in cotton resistance to Verticillium wilt is limited. In the present study, transcriptome analysis revealed eight upregulated in susceptible cotton varieties and downregulated in resistant cotton varieties during early inoculation, indicating they were involved in regulating the infection of in cotton.

Identification of Mycoviruses in : Potential Biocontrol Agents for Walnut Canker.

Walnut canker is a common disease in the Xinjiang Uygur autonomous region of China, which is caused by . To date, there is no effective control measure for this disease. Infection with mycoviruses has been widely proven to reduce the virulence of plant pathogenic fungi, with some mycoviruses even serving as potential biological control agents for plant diseases.

Identification of Mycoviruses in the Pathogens of Fragrant Pear Valsa Canker from Xinjiang in China.

As a common disease, canker seriously affects the yield and quality of fragrant pear due to the lack of effective control measures. Some fungi have been reported to harbor rich reservoirs of viral resources, and some mycoviruses can be used as biocontrol agents against plant diseases. In this study, 199 isolates were obtained from diseased branches of fragrant pear in the main production areas of Xinjiang.

The MBD-ACD DNA methylation reader complex recruits MICRORCHIDIA6 to regulate ribosomal RNA gene expression in Arabidopsis.

DNA methylation is an important epigenetic mark implicated in selective rRNA gene expression, but the DNA methylation readers and effectors remain largely unknown. Here, we report a protein complex that reads DNA methylation to regulate variant-specific 45S ribosomal RNA (rRNA) gene expression in Arabidopsis (Arabidopsis thaliana). The complex, consisting of METHYL-CpG-BINDING DOMAIN PROTEIN5 (MBD5), MBD6, ALPHA-CRYSTALLIN DOMAIN PROTEIN15.

MBD3 Regulates Male Germ Cell Division and Sperm Fertility in .

DNA methylation plays important roles through the methyl-CpG-binding domain (MBD) to realize epigenetic modifications. Thirteen AtMBD proteins have been identified from the genome, but the functions of some members are unclear. AtMBD3 was found to be highly expressed in pollen and seeds and it preferably binds methylated CG, CHG, and unmethylated DNA sequences.

A novel gene activates the autophagic degradation of wing disc in pea aphid.

Wing dimorphism in insects is an evolutionarily adaptive trait to maximize insect fitness under various environments, by which the population could be balanced between dispersing and reproduction. Most studies concern the regulatory mechanisms underlying the stimulation of wing morph in aphids, but relatively little research addresses the molecular basis of wing loss. Here, we found that, while developing normally in winged-destined pea aphids, the wing disc in wingless-destined aphids degenerated 30-hr postbirth and that this degeneration was due to autophagy rather than apoptosis.

A lncRNA fine-tunes salicylic acid biosynthesis to balance plant immunity and growth.

Constitutive activation of plant immunity is detrimental to plant growth and development. Here, we uncover the role of a long non-coding RNA (lncRNA) in fine-tuning the balance of plant immunity and growth. We find that a lncRNA termed salicylic acid biogenesis controller 1 (SABC1) suppresses immunity and promotes growth in healthy plants.

DEAD-box helicases modulate dicing body formation in .

Eukaryotic cells contain numerous membraneless organelles that are made from liquid droplets of proteins and nucleic acids and that provide spatiotemporal control of various cellular processes. However, the molecular mechanisms underlying the formation and rapid stress-induced alterations of these organelles are relatively uncharacterized. Here, we investigated the roles of DEAD-box helicases in the formation and alteration of membraneless nuclear dicing bodies (D-bodies) in We uncovered that RNA helicase 6 (RH6), RH8, and RH12 are previously unidentified D-body components.