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Recently, the innovation team of ecological security evaluation and utilization of pest-resistant crops of the Institute of Plant Protection of the Chinese Academy of Agricultural Sciences systematically studied the ecological regulation function of pest-induced plant volatiles (HIPVs) in the process of information exchange between rice plants, and found that the rice volatiles induced by the pest of the dimorphic borer can be perceived and recognized by neighboring rice plants, and the defense preparation can be quickly initiated, and the faster and stronger defense response can be initiated when the neighboring rice is harmed by the dimorphic borer.
The biochemical and molecular mechanisms of pest-induced volatiles regulating the insect-resistant defense response of neighboring rice plants were
revealed.
The findings were published in the cover article New Phytologist
.
The biochemical and molecular mechanisms of pest-induced volatiles regulating the insect-resistant defense response of neighboring rice plants were
revealed.
The findings were published in the cover article New Phytologist
.
In plant-to-plant communication, pest-induced plant volatiles can be identified by neighboring plants and quickly enter the "early warning state", preparing for the subsequent potential pest stress in advance
.
When pests come, plants in an "alert state" show faster reflexes, greater resistance and tolerance
.
This phenomenon has been reported in a variety of plants such as corn, tomato and tea plant, but the specific molecular and biochemical mechanisms need to be further analyzed
.
Rice is an important food crop in China, usually cultivated intensively, so pest-induced volatiles may play an important role in rice plant interaction, but research on pest-induced volatile-mediated information exchange between rice plants has been rarely reported
.
.
When pests come, plants in an "alert state" show faster reflexes, greater resistance and tolerance
.
This phenomenon has been reported in a variety of plants such as corn, tomato and tea plant, but the specific molecular and biochemical mechanisms need to be further analyzed
.
Rice is an important food crop in China, usually cultivated intensively, so pest-induced volatiles may play an important role in rice plant interaction, but research on pest-induced volatile-mediated information exchange between rice plants has been rarely reported
.
The results showed that when rice plants exposed to the volatiles induced by the borer were harmed by the borer, the expression of genes related to the pathway of jasmonic acid and protease inhibitors in the rice plants was significantly upregulated, and the content of jasmonic acid and protease inhibitors was also increased, which significantly inhibited the growth and development
of the larvae of the borer.
In addition, the release of volatiles increased significantly after being harmed by the dimorphic borer, which enhanced the indirect defense response
of neighboring rice plants.
of the larvae of the borer.
In addition, the release of volatiles increased significantly after being harmed by the dimorphic borer, which enhanced the indirect defense response
of neighboring rice plants.
This study systematically reveals the regulation mechanism of direct and indirect insect resistance defense of adjacent rice plants by rice volatiles induced by the pest of the borer, which is helpful for in-depth understanding of the co-evolutionary relationship and mechanism between plants-plants and plant-phytovorous insects, and also provides a theoretical basis
for the formulation of new strategies and technologies for green pest control in paddy fields.
for the formulation of new strategies and technologies for green pest control in paddy fields.
The research was supported
by grants from the National Natural Science Foundation of China and the Science and Technology Innovation Project of the Chinese Academy of Agricultural Sciences.
by grants from the National Natural Science Foundation of China and the Science and Technology Innovation Project of the Chinese Academy of Agricultural Sciences.
Original link: https://doi.
org/10.
1111/nph.
18548
org/10.
1111/nph.
18548
