相关实验视频

Updated: Jul 18, 2025

Imaging and Analysis for Quantifying Maize (Zea mays) Abiotic Stress Phenotypes

Imaging and Analysis for Quantifying Maize (Zea mays) Abiotic Stress Phenotypes

Published on: March 28, 2025

气候变化对玉米化学防御的影响

Jessica P Yactayo-Chang¹, Anna K Block¹

¹United States Department of Agriculture-Agricultural Research Service, Chemistry Research Unit, Gainesville, FL, U.S.A.

The Biochemical journal

|August 25, 2023

概括

气候变化影响了玉米的化学防御,影响了作物的弹性. 了解这些复杂的相互作用对于发展气候智能农业和确保全球粮食安全至关重要.

科学领域:

农业科学农业科学
植物生物学植物生物学
环境科学环境科学

背景情况:

气候变化对全球农业和粮食安全构成重大威胁.
玉米 (Zea mays) 生产容易受到气候引起的害虫动态和作物健康变化的影响.
了解植物防御机制对于开发适应气候的作物至关重要.

研究的目的:

审查气候变化对玉米化学防御产量和有效性的影响.
为了阐明各种气候压力因素 (干旱,洪水,热量,二氧化碳) 如何影响玉米的防御化合物.
探讨对多基性相互作用和整体作物弹性的影响.

主要方法:

文献综述综合了当前关于气候变化和玉米化学生态学的研究.
分析非生物性压力因素如何影响玉米防御化学物质的合成和有效性.
检查压力信号网络及其在综合应激反应中的作用.

主要成果:

气候变化因素,如干旱,热量和二氧化碳的增加,会对玉米的防御化学物质 (如挥发性有机化合物,氧化物) 产生不同影响.
牙导电率和土壤条件的变化会影响这些化学防御的分散和有效性.
气候压力因素的组合会导致防御机制发生不可预测的变化,与单一压力因素的反应不同.

结论:

气候变化以复杂的,特定于化合物的方式显著破坏了玉米的化学防御系统.
改变的化学防御可以影响植物的弹性和与害虫和有益生物体的相互作用.
需要进一步的研究来利用这些化学防御来开发适应气候变化的玉米品种.

关键词:

草食动物草食动物主体病原体相互作用玉米玉米玉米是一种植物素 (phytoalexins) 是一种植物素.压力反应应对压力的反应.挥发性资产挥发性资产

更多相关视频

Inhibition of Aspergillus flavus Growth and Aflatoxin Production in Transgenic Maize Expressing the α-amylase Inhibitor from Lablab purpureus L.

Inhibition of Aspergillus flavus Growth and Aflatoxin Production in Transgenic Maize Expressing the α-amylase Inhibitor from Lablab purpureus L.

Published on: February 15, 2019

High-throughput, Microscale Protocol for the Analysis of Processing Parameters and Nutritional Qualities in Maize Zea mays L.

High-throughput, Microscale Protocol for the Analysis of Processing Parameters and Nutritional Qualities in Maize Zea mays L.

Published on: June 16, 2018

相关概念视频

What is Climate?

What is Climate?

Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.

Adaptations that Reduce Water Loss

Adaptations that Reduce Water Loss

Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.

Responses to Heat and Cold Stress

Responses to Heat and Cold Stress

Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.

Introduction to Plant Diversity

Introduction to Plant Diversity

From Water to Land

Responses to Drought and Flooding

Responses to Drought and Flooding

Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.

Light Acquisition

Light Acquisition

In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.