Gray mold caused by is a devastating disease that leads to huge economic losses worldwide. Autophagy is an evolutionarily conserved process that maintains intracellular homeostasis through self-eating. In this study, we identified and characterized the biological function of the autophagy-related protein Atg6 in . Targeted deletion of the gene showed block of autophagy and several phenotypic defects in aspects of mycelial growth, conidiation, sclerotial formation and virulence. All of the phenotypic defects were restored by targeted gene complementation. Taken together, these results suggest that BcAtg6 plays important roles in the regulation of various cellular processes in .
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http://dx.doi.org/10.3389/fmicb.2021.798363 | DOI Listing |
Nat Commun
December 2024
Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, China.
The autophagy pathway regulates the degradation of misfolded proteins caused by heat stress (HS) in the cytoplasm, thereby maintaining cellular homeostasis. Although previous studies have established that autophagy (ATG) genes are transcriptionally upregulated in response to HS, the precise regulation of ATG proteins at the subcellular level remains poorly understood. In this study, we provide compelling evidence for the translocation of key autophagy components, including the ATG1/ATG13 kinase complex (ATG1a, ATG13a), PI3K complex (ATG6, VPS34), and ATG8-PE system (ATG5), to HS-induced stress granules (SGs) in Arabidopsis thaliana.
View Article and Find Full Text PDFBMC Plant Biol
November 2024
Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China.
Background: Autophagy is a conserved cellular process crucial for recycling cytoplasmic components and maintaining cellular homeostasis in eukaryotes. During autophagy, the formation of a protein complex involving AUTOPHAGY-RELATED PROTEIN 6 (ATG6) and phosphatidylinositol 3-kinase is pivotal for recruiting proteins involved in phagophore expansion. However, the intricate molecular mechanism regulating this protein complex in plants remains elusive.
View Article and Find Full Text PDFPLoS Genet
November 2024
Department of Biological Sciences, Konkuk University, Seoul, Republic of Korea.
Fatty acid-binding proteins (FABPs) are small cytoplasmic proteins involved in intracellular lipid transport and bind free fatty acids, cholesterol, and retinoids. FABP3, the major neuronal FABP in the adult brain, is upregulated in the CSF of patients with Alzheimer's disease (AD). However, the precise role of neuronal FABPs in AD pathogenesis remains unclear.
View Article and Find Full Text PDFInt J Biol Macromol
November 2024
Center of Pear Engineering Technology Research, National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Horticulture, Nanjing Agricultural University, Nanjing 210095. Electronic address:
Autophagy is vital for plant defense against pathogens, with ATG6 being a key gene in this process. At present, little has been reported on the potential function and molecular mechanisms of ATG6 mediated pathogen resistance in pear. This study investigates the function of the pear homolog of ATG6 (PbrATG6) in resistance to Botryosphaeria dothidea.
View Article and Find Full Text PDFMol Plant Pathol
October 2024
The Key Laboratory of Plant Immunity, Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China.
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