Giha Song, Sang Ryeol Park, Yujeong Jeong, Jinjeong Lee, Duk-Ju Hwang, Nam-Chon Paek, Seungmin Son
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引用次数: 0
Abstract
Diverse pathogens, including Fusarium fujikuroi and Xanthomonas oryzae pv. oryzae (Xoo), cause significant yield losses in rice (Oryza sativa). The situation is expected to worsen due to rapid climate change. Thus, identifying novel genes conferring innate immunity against these pathogens is crucial for global food security. WRKY transcription factors are involved in various plant processes, including innate immunity. In rice, there are 125 OsWRKYs, with some functions reported. However, the roles of many OsWRKYs in rice immunity remain largely unknown. In this study, we investigate the role of OsWRKY9 in broad-spectrum disease resistance. OsWRKY9 transcripts increased in response to F. fujikuroi and Xoo. The promoter of OsWRKY9 was indirectly activated by OsWRKY65, which confers broad-spectrum resistance to F. fujikuroi and Xoo. Moreover, OsWRKY9-overexpressing transgenic plants exhibited enhanced resistance to both pathogens in a manner similar to transgenic plants overexpressing OsWRKY65. Additionally, OsWRKY9 modulated the expression of various defense-related genes regulated by OsWRKY65. These results indicate that the OsWRKY65-OsWRKY9 module enhances resistance to bakanae disease and bacterial blight.
期刊介绍:
Journal of Plant Biology, an official publication of the Botanical Society of Korea, is an international journal devoted to basic researches in biochemistry, cellular biology, development, ecology, genetics, molecular biology, physiology, and systematics of plants.
The Journal publishes the following categories of paper:
Original articles -- For publication in Journal of Plant Biology the manuscript must provide a significant new contribution to our understanding of plants. All areas of plant biology are welcome. No limit on the length, but a concise presentation is encouraged.
Reviews -- Invited by the EiC.
Brief Communications -- Concise but independent report representing significant contribution to plant science.
The Botanical Society of Korea was founded on November 30, 1957 to promote studies, disseminate and exchange information on the field of plant biology. The first issue of The Korean Journal of Botany, the official publication of the society, was published on April 1, 1958. It was published twice a year, but quarterly from 5th volume in 1962. In 1994, it was renamed to Journal of Plant Biology and published in English since 1996. The journal entered its 50th year of publication in 2007.