The response mechanism of parasitic plants after aphids in the south were attacked by aphids.

Studies have shown that when plants are subjected to insect feeding and coercion, insect-resistant systemic signals are generated from the injured site and conducted through the tube bundle, inducing a systematic insect-resistant response from the entire plant.
parasitic plants (especially whole parasitic plants), in order to adapt to parasitic habits, their morphology, physiology and ecological habits are very different from ordinary plants, photosynthesis, root and leaf development and other physiological functions and organ degradation, and the host material exchange-related organs and functions have been strengthened, including the specialization of the inhaler this organ.
the question of how specialplant groups such as parasitic plants respond to insect coercion and whether they can transmit stress signals to the host so that the host can perceive the invasion of parasitic plants, etc., and such problems are of great significance for the analysis of the habits of parasitic plants and the interaction between parasitic plants and hosts.
Recently, Wu Jianqiang, a researcher at the Kunming Plant Research Institute of the Chinese Academy of Sciences, systematically analyzed the response of the parasitic plant and host at the level of plant hormones and transcription groups after the aphids were attacked by aphids after the aphids were attacked by aphids.
experimental demonstration, the systematic signals produced by aphids coercing the silks are conducted in the parasitic system.
the aphids first induced the changes of plant hormones (JA and SA) and then induced the regulation of transcription factors, which were reflected in the changes in the transcription expression of specific functional genes and the accumulation of insect-related secondary metabolites.
at the same time, the team speculated that a highly conservative moving signal (red arrow) was transmitted to the host through a silkvine vine stem, which was widely transmitted in the host's maintenance tube bundle system, inducing significant changes in the host plant hormone and changes in the expression level of transcription groups, and causing the host to develop resistance to insect stress, and the black arrow indicating signals or regulatory pathways.
results showed that aphids induced significant changes in hormones and gene expression in southern molybifyand and host soybean plants at the same time, and subsequent biological function tests showed that the systemic signals produced by aphids coercing the silk could move to the host, and induced the host soybeans to resist insect (ticks and oblique nocturnal) stress.
the study shows that in terms of systematic response to insect coercion, the parasitic plants and hosts after the fusion of the tube bundle form a complete functional system, and when insects feed parasitic plants, they induce the whole parasitic system to produce a systematic insect-resistant response.
these findings provide new insights for enriching parasitic plant cognition and understanding the mechanism of material and signal communication between parasitic plants and hosts.
research by Aphid Myzus persicae feed on the spu plant Cuscuta australis (dodder) defense s disainboth the two the eith and the hashtag and the sauer atha, with PhD student Zhuang Zhifu as the first author of the paper and Author Wu Jianqiang as a newsletter.
the research has been supported by the Chinese Academy of Sciences' strategic leading science and technology special (Class B), the National Natural Science Foundation of China, the Map Partners Group international cooperation projects, etc.
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