special

您的位置: 首页 > 院士专题 > 专题列表

共检索到2821条,权限内显示50条;

[学术文献 ] Phenotypic plasticity plays an essential role in the confrontation between plants and herbivorous insects 进入全文

CABI Agriculture and Bioscience 期刊

The interaction between insects and plants is a classic case of coevolution. During the arms race that has continued for 400 million years, the mutualistic (such as pollination and defense assistance) and antagonistic relationships gradually formed and complicated under the selection pressure from phytophagous insects. Thus, plants have developed diverse defense strategies, constantly balancing the relationship between defense and growth. At the same time, insects have evolved the ability to adapt to and resist plant defenses. Throughout this process, phenotypic plasticity has continuously helped both groups adapt to new environments and niches. Epigenetic changes play an important role in the formation of plastic phenotype. These changes allow parental defense traits to be passed on to the offspring, helping the offspring resist insect feeding. Epigenetic changes and genetic variation provide the basis for the formation of new phenotypes, and plants can form stable defense traits under long-term insect feeding pressure. In this review, we summarize the defense strategies of plants and the counter-defense strategies of insects, suggest that phenotypic plasticity plays an important role in this interaction, and discuss the role of epigenetics in the formation of plastic phenotypes.

[相关专利 ] Systems and methods for determining a location of a pest infested and/or diseased plant 进入全文

世界知识产权组织

本发明公开了一种用于检测植物上的害虫侵扰和/或疾病的系统。该系统包括多个空间分离的VOC传感器,用于检测多个植物中的挥发性有机化合物(VOC)。该系统还包括数据库系统,存储了各个应激VOC和/或响应VOC的多个指示。在此,每种应激VOC是由虫害和/或患病植物排放的VOC,每种响应VOC是在检测到虫害和/或者患病植物的应激VOC时排放的VOC。该系统还包括数据处理系统,其被配置为:从多个传感器接收指示检测到的VOC和指示检测到VOC的至少一个位置的一个或多个信号,确定检测到的VOC对应于存储在数据库系统中的响应VOC,或者确定检测到的VOC对应于存储在数据库系统中的响应VOC;因此,确定虫害和/或患病植物的位置。  

[相关专利 ] 一种植食性昆虫对植物挥发物趋性试验装置 进入全文

中国专利

本实用新型公开了一种植食性昆虫对植物挥发物趋性试验装置,包括两个水平对齐的箱体、设置于两个箱体之间的圆筒,所述圆筒上设置有接虫口,所述圆筒的两端分别与两个箱体的内部连通,所述圆筒两端的内壁上设置有粘虫胶带,本实用新型结构简单,便于观察实验结果,实验后方便清理回收昆虫。

[学术文献 ] Artificial Olfactory Biohybrid System: An Evolving Sense of Smell 进入全文

Advanced Science 期刊

The olfactory system can detect and recognize tens of thousands of volatile organic compounds (VOCs) at low concentrations in complex environments. Bioelectronic nose (B-EN), which mimics olfactory systems, is becoming an emerging sensing technology for identifying VOCs with sensitivity and specificity. B-ENs integrate electronic sensors with bioreceptors and pattern recognition technologies to enable medical diagnosis, public security, environmental monitoring, and food safety. However, there is currently no commercially available B-EN on the market. Apart from the high selectivity and sensitivity necessary for volatile organic compound analysis, commercial B-ENs must overcome issues impacting sensor operation and other problems associated with odor localization. The emergence of nanotechnology has provided a novel research concept for addressing these problems. In this work, the structure and operational mechanisms of biomimetic olfactory systems are discussed, with an emphasis on the development and immobilization of materials. Various biosensor applications and current developments are reviewed. Challenges and opportunities for fulfilling the potential of artificial olfactory biohybrid systems in fundamental and practical research are investigated in greater depth.

[前沿资讯 ] The Global Tea Market Expected to be $92 Billion by 2030 进入全文

World Tea News 网站

ResearchAndMarkets.com recently released its "Tea Market Size, Share & Trends Analysis, 2024-2030" report. The global tea market size is expected to reach USD 91.98 billion in 2030 and is projected to grow at a CAGR of 7.4% from 2024 to 2030. Changing demographics along with the rise in disposable income of middle class populations, especially in urban areas, is anticipated to drive the product consumption and in turn drive the market. Millennials are anticipated to register the strongest growth, especially in countries such as China, Japan, Brazil, and India. Rising awareness regarding the benefits of drinking tea is also helping the market, and a number of manufacturers are repositioning their products as a wellness and lifestyle brand to reach more consumers.

[统计数据 ] Tea Production Quantity from Special Groups in 2022(FAOSTAT) 进入全文

FAO 网站

根据FAOSTAT,最新统计了2022年度全球特殊群体(包括:最不发达国家、内陆发展中国家、小岛屿发展中国家、低收入粮食短缺国家及粮食净进口发展中国家)的茶叶总产量(ton)以及累计值,详细数据见表 Tea Production Quantity from Special Groups in 2022(FAOSTAT)。

热门相关

意 见 箱

匿名:登录

个人用户登录

找回密码

第三方账号登录

忘记密码

个人用户注册

必须为有效邮箱
6~16位数字与字母组合
6~16位数字与字母组合
请输入正确的手机号码

信息补充