Responses and Resistance Mechanisms of Plants Under Environmental Stress

A special issue of Biology (ISSN 2079-7737). This special issue belongs to the section "Plant Science".

Deadline for manuscript submissions: 31 December 2025 | Viewed by 777

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College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin 150030, China
Interests: tomato; cold tolerance; defense priming
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Special Issue Information

Dear Colleagues,

In recent years, with the intensification of global climate change, plants have been increasingly exposed to severe environmental stresses. Non-biological stresses—such as drought, salinity, heavy metal pollution, low temperature, high temperature—and biological stresses—encompassing pests and diseases—have significantly impacted plant growth and yield. To better understand their effects on plants and develop effective mitigation strategies, it is particularly important to delve into the study of plant resistance mechanisms.

We encourage you to submit your latest research findings on how plants perceive and respond to environmental stresses, especially those involving new stress resistance mechanisms, resistance regulation, and genetic basis. Additionally, we welcome discussions on how to utilize this knowledge to improve crop stress tolerance and enhance agricultural production efficiency.

We look forward to your contributions in advancing the development of plant stress mechanisms and utilization.

Prof. Dr. Aoxue Wang
Guest Editor

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Keywords

  • disease resistance
  • cold tolerance
  • defense priming
  • pathogen perception

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Published Papers (1 paper)

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Research

19 pages, 9350 KiB  
Article
Physiological Adaptation to Different Heavy Metal Stress in Seedlings of Halophyte Suaeda liaotungensis
by Jieqiong Song, Xiaoqi Cao, Ruixuan An, Haoran Ding, Wen Wang, Yahan Zhou, Chunyan Wu, Yizihan Cao, Hongfei Wang, Changping Li and Qiuli Li
Biology 2025, 14(3), 260; https://doi.org/10.3390/biology14030260 - 5 Mar 2025
Cited by 1 | Viewed by 667
Abstract
Soil contamination with heavy metals is a worldwide environmental issue that impacts plant growth and human health. This study is the first to investigate the tolerance and physiological response mechanism of Suaeda liaotungensis seedlings to heavy metal stress. The results exhibited that the [...] Read more.
Soil contamination with heavy metals is a worldwide environmental issue that impacts plant growth and human health. This study is the first to investigate the tolerance and physiological response mechanism of Suaeda liaotungensis seedlings to heavy metal stress. The results exhibited that the toxicity degree of Pb, Cd, Cu, and Zn to Suaeda liaotungensis seedlings was highest for Cd and lowest for Pb. Heavy metal stress increased H2O2 levels in seedlings, thereby aggravating lipid peroxidation of the cell membrane and consequently increasing MDA content. Meanwhile, the SOD and CAT activities in seedlings increased under heavy metal stress, whereas POD activity decreased consistently under Cd and Zn stress. The soluble sugars and proline content in seedlings also showed an increasing trend under heavy metal stress. Furthermore, the tolerance in the seedlings from black seeds to Pb and Cd stress was improved by enhancing SOD and CAT activities and accumulating proline. However, the tolerance in the seedlings from brown seeds to Cu stress was improved by increasing CAT activity as well as accumulating soluble sugar and proline content. The results reveal the response mechanism of Suaeda liaotungensis seedlings to heavy metal stress and provide the basis for utilizing Suaeda liaotungensis to improve heavy metal-contaminated saline soil. Full article
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