Review
Plant Sciences
U. K. Ghosh, M. N. Islam, M. N. Siddiqui, X. Cao, M. A. R. Khan
Summary: Proline plays a crucial role in plant response to abiotic stresses, acting as a molecular chaperone, antioxidative defence molecule, osmoprotectant, and signaling molecule. Overproduction of proline in plants helps maintain cellular homeostasis and improve adaptive responses to changing climate conditions.
Article
Agronomy
Lei Wu, Yujie Chang, Lanfen Wang, Jing Wu, Shumin Wang
Summary: This study identified genomic regions associated with drought resistance based on root traits in a natural population of 438 common bean accessions through genome-wide association analysis. Various loci and candidate SNPs linked to drought resistance and root traits were found, providing valuable genetic resources for the improvement of common bean varieties.
THEORETICAL AND APPLIED GENETICS
(2021)
Article
Biochemistry & Molecular Biology
Danni Yang, Ruize Ni, Shihai Yang, Yanan Pu, Min Qian, Yunqiang Yang, Yongping Yang
Summary: This study cloned and identified the P5CS gene from Stipa purpurea, finding that overexpression of SpP5CS in Arabidopsis thaliana led to increased proline content and better growth under drought stress. SpP5CS-overexpressing A. thaliana showed higher resistance to drought stress compared to the wild type, suggesting that SpP5CS may be a potential target gene for enhancing plant resistance to drought.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Plant Sciences
Naveed Ul Ul Mushtaq, Khalid M. Alghamdi, Seerat Saleem, Inayatullah Tahir, Ahmad Bahieldin, Bernard Henrissat, Mohammed Khalid Alghamdi, Reiaz Ul Rehman, Khalid Rehman Hakeem
Summary: Salinity is a major ecological restriction for plant growth and poses a threat to global agriculture. Reactive oxygen species (ROS) generated under stress conditions can damage cellular components, but low levels of ROS also play a role as signaling molecules. Plants have antioxidant systems and proline metabolism to protect cells from damage. The application of zinc can mitigate the negative effects of salt and improve plant growth and development.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Agronomy
Xuanjun Feng, Yue Hu, Weixiao Zhang, Rongqian Xie, Huarui Guan, Hao Xiong, Li Jia, Xuemei Zhang, Hanmei Zhou, Dan Zheng, Ying Wen, Qingjun Wang, Fengkai Wu, Jie Xu, Yanli Lu
Summary: The P5CS gene plays a protective role in stressed plants, but overexpression of P5CS may inhibit plant growth. By expressing AtP5CS1 and AtP5CS1F128A genes under the regulation of an ABA-inducible promoter, it was found that seedling growth and grain yield of rice can be increased, but it has detrimental effects on grain quality, tiller number, and grain yield.
Article
Environmental Sciences
Francielle Roberta Dias de Lima, Alice Pita Barbosa, Isabela Cristina Filardi Vasques, Jakeline Rosa Oliveira, Aline Oliveira Silva, Gabriel Caixeta Martins, Mateus Moreira Engelhardt, Polyana Pereira, Rayner Hugo Cassa Louzada dos Reis, Luiz Roberto Guimaraes Guilherme, Joao Jose Marques
Summary: The heavy metal mercury is a complex and toxic pollutant that can impair plant growth when present in soils. This study evaluated the physiological effects of mercury on common bean and oat cultivated in two different soils, with results showing oxidative stress and decreased photosynthesis in plants grown in mercury-contaminated soil. Soil physical-chemical properties were identified as key factors driving mercury toxicity in Oxisols.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Plant Sciences
Susana T. Leitao, Carmen Santos, Susana de Sousa Araujo, Diego Rubiales, Maria Carlota Vaz Patto
Summary: This study analyzed the transcriptomic changes and phenotypic responses of common bean under single and combined water deficit and fusarium wilt stresses. The susceptible accession showed higher transcriptional changes and more differentially expressed genes in response to combined stresses, while the resistant accession exhibited promising target genes for multiple stress breeding.
HORTICULTURE RESEARCH
(2021)
Article
Agronomy
Arafat Abdel Hamed Abdel Latef, Md. Tahjib-Ul-Arif, Mohammad Saidur Rhaman
Summary: Exogenous application of IAA can enhance salt tolerance in faba beans by promoting growth, improving osmotic protection, enhancing mineral balance, reducing Na+ accumulation in roots, increasing nodulation, and improving antioxidant enzyme activity, thereby alleviating the antagonistic effects of salt stress.
Article
Agriculture, Multidisciplinary
Z. Azimychetabi, M. Sabokdast Nodehi
Summary: The study found that salinity stress leads to decreases in chlorophyll content, RWC, increases in ELI, K+/Na+ ratio, and significant increases in MDA and proline concentrations. The activities of antioxidant enzymes were notably altered, and total protein content decreased under salt stress. Genotypes Jules and 201 were identified as salt-tolerant and semi-tolerant, respectively.
JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY
(2021)
Article
Plant Sciences
Yanmei Sun, Jie Li, Jincheng Xing, Xiao Yu, Yiwen Lu, Wenkai Xu, Na Zhao, Zhipeng Liu, Zhenfei Guo
Summary: This study evaluated salt tolerance in common vetch collections and investigated the underlying physiological mechanisms. The results showed that salt-tolerant collections of common vetch maintained lower levels of Na+ and higher levels of K+ and K+/Na+ ratio under salt stress compared to salt-sensitive ones. The expression of genes involved in Na+ and K+ transportation and redistribution was responsible for salt stress. Transcript levels of NHX7, HKT1, AKT2, and HAK17 were induced after salt stress, with higher levels in salt-tolerant collections. Proline accumulation and antioxidant defense system were also promoted in salt-tolerant collection. These findings suggest that salt tolerance in common vetch is associated with the maintenance of ion homeostasis, gene expression, proline accumulation, and antioxidant defense system.
JOURNAL OF PLANT PHYSIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Xinran Du, Mingxing Su, Yang Jiao, Suxiang Xu, Jieqiong Song, Hongfei Wang, Qiuli Li
Summary: In this study, a new NAC gene, SlNAC10, was cloned from the halophyte Suaeda liaotungensis K. The SlNAC10 gene was found to be highly expressed in the leaves of S. liaotungensis and induced by drought, salt, cold, and ABA. Transgenic Arabidopsis plants overexpressing SlNAC10 showed improved salt and drought tolerance, along with increased proline content and antioxidant enzyme activities. SlNAC10 was found to regulate the transcription of proline synthesis-related enzymes. This study suggests that SlNAC10 plays a role in enhancing salt and drought tolerance in plants by regulating proline synthesis.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Manon M. S. Richard, Ariane Gratias, Juan C. Alvarez Diaz, Vincent Thareau, Stephanie Pflieger, Chouaib Meziadi, Sophie Blanchet, William Marande, Elena Bitocchi, Roberto Papa, Phillip N. Miklas, Valerie Geffroy
Summary: The Co-x gene confers total resistance to a virulent strain of Colletotrichum lindemuthianum, providing a critical defense mechanism against anthracnose in common beans.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Agronomy
Bosen Jia, Robert L. Conner, Nadeem Khan, Anfu Hou, Xuhua Xia, Frank M. You
Summary: In this study, the genetic variability of MS resistance was evaluated in a population of 138 recombinant inbred lines and their parents. The results showed that MS in common bean exhibits high heritability and is influenced by a few major genes and polygene effects. Four major genes were identified to play a crucial role in resistance to MS.
Article
Multidisciplinary Sciences
Isabela Pavanelli de Souza, Beatriz Rosa de Azevedo, Alexandre Siqueira Guedes Coelho, Thiago Livio Pessoa Oliveira de Souza, Paula Arielle Mendes Ribeiro Valdisser, Lucas Matias Gomes-Messias, Breno Osvaldo Funicheli, Claudio Brondani, Rosana Pereira Vianello
Summary: This study conducted whole genome sequencing (WGS) of 40 important bean genotypes to generate an extensive SNP database. Over 6 million SNPs were identified, with the majority having a modifier impact on non-coding genome regions. A significant proportion of SNPs occurred in intergenic regions, and at least one SNP was found in 58.63% of the annotated genes in the bean genome. Importantly, 7841 SNPs were identified in plant disease defense-related genes, which can be valuable for crop breeding efforts.
SCIENTIFIC REPORTS
(2023)
Article
Plant Sciences
Amira K. Nasrallah, Mohamed A. M. Atia, Reem M. Abd El-Maksoud, Maimona A. Kord, Ahmed S. Fouad
Summary: This study highlights the role of salt priming in mitigating salt stress on faba bean. It was found that salt shock resulted in negative effects on growth, photosynthetic pigments, and yield, accompanied by increased generation of H2O2 and lipid peroxidation. However, priming with increasing concentrations of NaCl improved plant defense mechanisms, including enhanced expression of GSH-related genes, proline accumulation, and antioxidant enzymes, thereby reducing the detrimental effects of salt shock on growth and yield.