scholarly journals Plant defense compound triggers mycotoxin synthesis by regulating H2B ub1 and H3K4 me2/3 deposition

2021 ◽  
Author(s):  
Tianling Ma ◽  
Lixin Zhang ◽  
Minhui Wang ◽  
Yiqing Li ◽  
Yunqing Jian ◽  
...  
Keyword(s):  
Plant Defense ◽  
Defense Compound

scholarly journals Biological Efficacy of Cochlioquinone-9, a Natural Plant Defense Compound for White-Backed Planthopper Control in Rice

Biology ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 1273
Author(s):  
Yoon-Hee Jang ◽  
Sopheap Yun ◽  
Jae-Ryoung Park ◽  
Eun-Gyeong Kim ◽  
Byoung-Ju Yun ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Plant Growth ◽  
Plant Defense ◽  
Biological Activities ◽  
Biotic Stresses ◽  
Negative Effect ◽  
Defense Compound ◽  
Global Food ◽  
Insight Into ◽  
Global Food Supply

Rice is exposed to various biotic stresses in the natural environment. The white-backed planthopper (Sogatella furcifera, WBPH) is a pest that causes loss of rice yield and threatens the global food supply. In most cases, pesticides are used to control WBPH. However, excessive use of pesticides increases pesticide resistance to pests and causes environmental pollution. Therefore, it is necessary to develop natural product-based pesticides to control WBPH. Plants produce a variety of secondary metabolites for protection. Secondary metabolites act as a defense against pathogens and pests and are valuable as pesticides and breeding materials. Cochlioquinone is a secondary metabolite that exhibits various biological activities, has a negative effect on the growth and development of insects, and contributes to plant defense. Here, we compared plant growth after treatment with cochlioquinone-9 (cq-9), a quinone family member. cq-9 improved the ability of plants to resist WBPH and had an effect on plant growth. Gene expression analysis revealed that cq-9 interacts with various defense-related genes to confer resistance to WBPH, suggesting that it is related to flavonoid compounds. Overall, this study provides insight into the mechanisms of WBPH resistance and suggests that cq-9 represents an environmentally friendly agent for WBPH control.

New discovery about plant defense: plant-plant communication

2013 ◽  
Vol 36 (10) ◽  
pp. 1120-1124 ◽  
Author(s):  
Su-Fang ZHANG ◽  
Zhen ZHANG ◽  
Hong-Bin WANG ◽  
Xiang-Bo KONG
Keyword(s):  
Plant Defense ◽  
Plant Communication ◽  
New Discovery ◽  
Plant Plant
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