Chili pepper () is an important fruit and spice used globally, but its yield is seriously threatened by anthracnose. is particularly valuable as it carries advantageous disease resistance genes. However, most of the genes remain to be identified. In this study, we identified the -specific gene , which encodes a truncated nucleotide-binding and leucine-rich repeat protein in the anthracnose resistant chili pepper variety PBC80. The transcription of was greater in PBC80 than it was in the susceptible variety An-S after inoculation. In order to investigate the biological function of CbCN, we generated transgenic tobacco lines constitutively expressing . Notably, -overexpressing transgenic plants exhibited enhanced resistance to compared to wild-type plants. Moreover, the expression of pathogenesis-related () genes was remarkably increased in a -overexpressing tobacco plants. In order to confirm these results in chili pepper, we silenced the gene using the virus-induced gene silencing system. The anthracnose resistance and expressions of , , and were significantly reduced in -silenced chili peppers after inoculations. These results indicate that CbCN enhances the innate immunity against anthracnose caused by by regulating defense response genes.
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http://dx.doi.org/10.3390/ijms22147672 | DOI Listing |
Plant Physiol
January 2025
Key Laboratory for Vegetable Biology of Hunan Province, Engineering Research Center for Horticultural Crop Germplasm Creation and New Variety Breeding, Ministry of Education, College of Horticulture, Hunan Agricultural University, Changsha 410125, China.
Carotenoids play indispensable roles in the ripening process of fleshy fruits. Capsanthin is a widely distributed and utilized natural red carotenoid. However, the regulatory genes involved in capsanthin biosynthesis remain insufficient.
View Article and Find Full Text PDFFood Chem
January 2025
College of Food Science and Technology, Zhejiang University of Technology, Deqing 313216, China; Zhejiang Key Laboratory of Green, Low-Carbon and Efficient Development of Marine Fishery Resources, Hangzhou 310014, China; National R&D Branch Center for Pelagic Aquatic Products Processing (Hangzhou), Hangzhou 310014, China. Electronic address:
Odor-induced saltiness enhancement (OISE) is thought to be a unique salt reduction technique which capitalizes on olfactory-gustatory interaction. Volatile compounds of stewed duck obtained from orthonasal (no-treatment) and retronasal (saliva-treatment) pathways and their capacity on OISE were analyzed by GC-O-MS and molecular simulation in order to ascertain the role of odors in duck stewed with chili pepper on saltiness enhancement. Totally 17 unique volatile compounds were identified in retronasal pathways.
View Article and Find Full Text PDFJ Hazard Mater
December 2024
Natural Products Research Center of Guizhou Province, Guiyang, China; Guizhou Medical University Key Laboratory of Chemistry for Natural Products, Guiyang, China. Electronic address:
The eco-stoichiometry of Ca/Cd in soil significantly affects Cd uptake and accumulation by plants in carbonate regions. In this study, the physiological responses and detoxification mechanisms of Capsicum annuum L. (capsicum) were investigated based on the eco-stoichiometric relationship of Ca/Cd in production substrates under varying pH levels (5, 6, and 7).
View Article and Find Full Text PDFNat Prod Res
January 2025
BRIC-Institute of Bioresources and Sustainable Development (Department of Biotechnology, Government of India), Imphal, India.
Capsaicin is the primary bioactive constituent in chillies, responsible for its incomparable pungent taste and many health advantages. In the current study, 32 samples of three different species of ( L., s L.
View Article and Find Full Text PDFPlant Physiol Biochem
January 2025
Department of Life Science (BK21 Program), Chung-Ang University, 84 Heukseok-Ro, Dongjak-Gu, 06974, Seoul, Republic of Korea. Electronic address:
Sucrose nonfermenting-1-related protein kinase 2 (SnRK2) intricately modulates plant responses to abiotic stresses and abscisic acid (ABA) signaling. In pepper genome, five SnRK2 genes with sequence homology to CaSnRK2.6 showed distinct expression patterns across various pepper organs and in response to treatments with ABA, drought, mannitol, and salt.
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