Review
Biochemistry & Molecular Biology
Rafael J. L. Morcillo, Maximino Manzanera
Summary: Plant growth-promoting rhizobacteria (PGPR) enhance plant tolerance to abiotic stresses by secreting exopolysaccharides (EPS), including salinity, drought, temperature, and heavy metal toxicity. Studying the mechanisms of EPS action and the impact of abiotic stresses on bacterial EPS production can provide a better understanding of the interactions between plants and microbes.
Review
Cell Biology
Hong Yang, Yuting Cui, Yanrong Feng, Yong Hu, Li Liu, Liu Duan
Summary: Abiotic stresses caused by climate change and human activity have significant impacts on agriculture and the environment, affecting plant growth. Plants have developed sophisticated mechanisms to respond to these stresses, including stress perception, epigenetic modification, and regulation of transcription and translation. Recent studies have shown that long non-coding RNAs (lncRNAs) play important regulatory roles in plant responses to abiotic stresses and are crucial for environmental adaptation. This review focuses on the features, evolution, and functions of plant lncRNAs in response to drought, temperature extremes, salt, and heavy metal stress. It also discusses the methods used to characterize lncRNA function and the mechanisms by which they regulate plant responses to abiotic stresses. Additionally, the review summarizes the emerging understanding of the biological functions of lncRNAs in plant stress memory. The information provided in this review will guide future research on the potential functions of lncRNAs in abiotic stresses.
Article
Environmental Sciences
Pan Yang, Tian Gan, Wen Pi, Min Cao, Dan Chen, Jie Luo
Summary: The study revealed that under long-term drought stress, external magnetic field treatment had a positive impact on the growth and remediation efficiency of Celosia argentea, alleviating the detrimental effects induced by drought and potentially increasing food security.
Article
Environmental Sciences
Colin Raymond, Laura Suarez-Gutierrez, Kai Kornhuber, Madeleine Pascolini-Campbell, Jana Sillmann, Duane E. Waliser
Summary: One of the major challenges of climate change is the increase in climate hazards and their impacts. The amplified impacts resulting from hazards occurring close to one another due to insufficient resilience of systems or increased severity of hazards are of special concern. This study projects changes in compounding hazards, showing that extreme heat events and consecutive extreme precipitation events are likely to increase in frequency, leading to an elevated risk of simultaneous crop failures in key regions.
ENVIRONMENTAL RESEARCH LETTERS
(2022)
Review
Environmental Sciences
Xin Zhang, Jingjing Liu, Hui Wang
Summary: Chronic high-level heavy metal exposure, especially excessive manganese (Mn) exposure, is known to increase the risk of developing neurodegenerative diseases. Autophagy dysfunction has been implicated in the pathogenesis of these diseases. The cGAS-STING pathway, which induces type I interferons in mammalian cells, has been well-studied and found to play a crucial role in effective innate immune responses. Recent research has also identified Mn2+ as an activator of this pathway, along with dsDNA, and autophagy has been identified as a primitive function for its activation. However, overactivation of the immune response can lead to tissue damage. Exploring the cGAS-STING-autophagy pathway may offer a new perspective on manganese neurotoxicity.
ENVIRONMENTAL POLLUTION
(2022)
Article
Biochemistry & Molecular Biology
Elham Ahmed Kazerooni, Sajeewa S. N. Maharachchikumbura, Abdullah Mohammed Al-Sadi, Umer Rashid, Il-Doo Kim, Sang-Mo Kang, In-Jung Lee
Summary: This study examined the efficiency of the fungal strain Cunninghamella bertholletiae in reducing symptoms of salinity, drought, and heavy metal stresses in tomato plants. The results showed that this fungal strain enhanced plant biomass and growth under stressed conditions and modulated the physiological and biochemical mechanisms of plants. It also regulated the expression of related genes. Therefore, Cunninghamella bertholletiae has the potential to be used as a biofertilizer to reduce plant damage and improve crop endurance under stress conditions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Shiwei Zheng, Shengbin Liu, Jinhua Feng, Wei Wang, Yuwei Wang, Qiang Yu, Yongrong Liao, Yuhan Mo, Zhengjun Xu, Lihua Li, Xiaoling Gao, Xiaomei Jia, Jianqing Zhu, Rongjun Chen
Summary: OsSMP1 plays an important role in rice response to abiotic stress such as salt, cold, and heavy metals, improving rice tolerance through regulating an ABA-dependent pathway.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2021)
Article
Plant Sciences
Ertan Yildirim, Guleray Agar, Selda Ors, Esra Arslan Yuksel, Murat Aydin, Melek Ekinci, Raziye Kul
Summary: The aim of this study is to evaluate the physiological, biochemical and morphological characteristics of bean under different irrigation and Cd levels, combined or separately. The results showed that drought stress and Cd dose led to significant decreases in plant growth, and the morphological properties of bean decreased sharply when both stresses were combined. Furthermore, water deficit and Cd stress increased the content of hydrogen peroxide, malondialdehyde, proline and sucrose in bean seedlings, and also increased the activity of antioxidant enzymes.
PLANT GROWTH REGULATION
(2023)
Article
Environmental Sciences
Heng Yin, Zhicai Zuo, Zhuangzhi Yang, Hongrui Guo, Jing Fang, Hengmin Cui, Ping Ouyang, Xia Chen, Jian Chen, Yi Geng, Zhengli Chen, Chao Huang, Yanqiu Zhu
Summary: Nickel, a widely distributed metal and important environmental pollutant, induces autophagy in kidneys and causes renal injury via the PI3K/AKT/mTOR and AMPK pathways.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Review
Plant Sciences
Wenqin Mao, Yuanshuang Wu, Fang Li, Wenting Tang, Weijun Gong, Xue Han, James F. White, Xiuling Ji, Haiyan Li
Summary: Seed endophytes are microorganisms that exist in the internal tissues of seeds. They can promote host plant growth and enhance stress resistance. The diversity of seed endophytes is lower than that of leaves, stems, and roots, but some core endophytes are kept in the seed. The most common endophytic bacteria are Firmicutes, Proteobacteria, Actinomycetes, and Bacteroidetes, while the most common endophytic fungi are Ascomycetes and Basidiomycetes. The paper reviews the diversity of seed endophytes and their role in host plant stress resistance, and discusses some problems in their applications in agricultural production.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2023)
Article
Agriculture, Multidisciplinary
Melek Ekinci, Ertan Yildirim, Guleray Agar, Esra Arslan Yuksel, Murat Aydin, Selda Ors, Raziye Kul
Summary: This study investigated the phytohormonal activity and hormone gene expressions of beans under different drought levels and soils with different levels of cadmium accumulation. The results showed a significant decrease in the content of various hormones with increasing doses of drought and cadmium. However, the content of abscisic acid (ABA) increased significantly under drought and/or cadmium stresses. Additionally, changes in gene expressions related to hormones were observed.
TURKISH JOURNAL OF AGRICULTURE AND FORESTRY
(2023)
Review
Chemistry, Multidisciplinary
Yanru Ding, Weichen Zhao, Guikai Zhu, Quanlong Wang, Peng Zhang, Yukui Rui
Summary: This paper provides an overview of various applications of foliar spraying of nanofertilizers in agriculture, including improving crop yield and quality as well as mitigating heavy metal stress, salt stress, and drought stress. Nanofertilizers and foliar fertilization are current hotspots of attention.
Article
Biotechnology & Applied Microbiology
Yong-Qiang Hu, Yin-Xin Zeng, Yu Du, Wei Zhao, Hui-Rong Li, Wei Han, Ting Hu, Wei Luo
Summary: This study describes the genomic characteristics of two Arctic Pseudomonas strains, PMCC200344 and PMCC200367, and reveals their potential for nitrogen removal from sewage effluents at low temperatures.
Article
Plant Sciences
Sbatie Lama, Fernanda Leiva, Pernilla Vallenback, Aakash Chawade, Ramune Kuktaite
Summary: This study evaluated the impact of drought and heat stresses on the phenotypic and gluten protein characteristics of eight spring wheat genotypes. The results showed that combined heat-drought stress had the most severe negative effects on biomass, grain yield, and thousand kernel weight, but a positive effect on most gluten parameters. The best performing genotypes in terms of stability were identified as potential breeding materials for developing climate-resistant wheat genotypes with improved bread-making quality.
FRONTIERS IN PLANT SCIENCE
(2023)
Review
Cell Biology
Mehboob-ur Rahman, Sana Zulfiqar, Muhammad Ahmad Raza, Niaz Ahmad, Baohong Zhang
Summary: Environmental abiotic stresses pose a threat to food security, while the CRISPR gene editing technology can be used to develop stress-tolerant crop varieties and increase crop yield.
