男友太凶猛1v1高h,大地资源在线资源免费观看 ,人妻少妇精品视频二区,极度sm残忍bdsm变态

Global EditionASIA 中文雙語Fran?ais
China
Home / China / Innovation

Study reveals how plants identify 'beneficial friend'

By ZHOU WENTING in Shanghai | China Daily | Updated: 2025-01-24 09:16
Share
Share - WeChat

Scientists in Shanghai have unraveled how plants distinguish between beneficial and harmful microbes in soil at the molecular level, a discovery that could significantly impact green agriculture and global food security.

Plants host a variety of microorganisms in their root systems. While symbiotic fungi establish mutually beneficial relationships with plants and aid in absorbing essential nutrients from the soil, pathogens deplete these nutrients, leading to reduced crop yields and plant death.

By understanding how plants differentiate between "friend" and "foe", researchers aim to develop crop cultivation methods that reduce the need for environmentally harmful fertilizers, maintain yields and enhance resilience.

Researchers at the Chinese Academy of Sciences' Center for Excellence in Molecular Plant Sciences in Shanghai identified LysM receptor kinases on plant cell membranes as key in detecting molecular signals from microbes. These signals trigger either symbiotic or immune responses. The team's findings, published in international journals from 2015 to 2024, have shed light on this complex mechanism.

However, the abundance of LysM receptor kinases in flowering plants and their overlapping functions complicate the understanding of how plants precisely distinguish between microbes. To address this, the scientists turned to Marchantia paleacea, also known as a common spleen moss, an early land plant with a simpler genome and fewer LysM receptors, making it an ideal model for their study.

The research identified two LysM receptor kinases in common spleen moss — MpaLYR and Mpa-CERK1 — that act as sensors to distinguish between symbiotic and pathogenic microbes and activate distinct responses.

Under low-phosphorus conditions, the researchers found plants release a hormone that prompts symbiotic fungi to secrete large quantities of short-chain chitin oligomers. These molecules are recognized by MpaLYR, triggering symbiotic responses while inhibiting immune responses to long-chain chitin oligomers from pathogenic fungi.

"This process is like a teacher taking roll call in a classroom," said Wang Ertao, a lead researcher on the team. "Only symbiotic fungi respond to the hormone and release symbiotic signals, attracting them to the plant to aid in the absorption of water and nutrients like phosphorus and nitrogen."

This dynamic balance between symbiosis and immunity allows plants to adapt to diverse environments, acquire nutrients through symbiosis and maintain effective defenses against pathogens.

The findings, published Friday on the website of the journal Cell, open new possibilities for improving crop growth efficiency. Scientists can now enhance plant secretion of strigolactones (the hormone) to attract symbiotic fungi over pathogens, Wang said.

Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: 连云港市| 中卫市| 商都县| 衡南县| 来凤县| 临泉县| 林口县| 宜春市| 桐梓县| 信宜市| 台北县| 庆安县| 邹城市| 沙田区| 开平市| 凤庆县| 六盘水市| 宕昌县| 沅江市| 酒泉市| 黎平县| 利川市| 永济市| 西吉县| 石门县| 锡林郭勒盟| 得荣县| 确山县| 陆河县| 景德镇市| 托克托县| 东阳市| 卢龙县| 桃江县| 长白| 富源县| 芦山县| 镇沅| 竹溪县| 霍林郭勒市| 昭苏县|