Article
Plant Sciences
Samira A. F. El-Okkiah, Mohamed M. M. El-Afry, Safaa A. A. Shehab Eldeen, Amira M. M. El-Tahan, Omar M. M. Ibrahim, Mostafa M. M. Negm, Mohamad Alnafissa, Mohamed T. T. El-Saadony, Hessa M. R. S. Almazrouei, Synan F. F. AbuQamar, Khaled A. A. El-Tarabily, Dalia A. A. Selim
Summary: The study evaluated the effectiveness of foliar spray of silica in alleviating water stress in rice. It was found that foliar application of silica improved the drought tolerance of rice by enhancing plant growth and physiological parameters. The integration of silica in breeding programs is recommended to develop drought-tolerant rice cultivars.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Xiaoxia Yang, Rui Liu, Miao Jing, Ningning Zhang, Cuiying Liu, Jiakun Yan
Summary: By detecting the physiological, molecular, and agronomic traits of two millet cultivars under different soil water conditions, it was found that water use efficiency increased under drought stress. The expression levels of sugar transport and water transport genes were higher in the drought-resistant cultivar, which helped maintain high RE, stomatal conductance, and net photosynthetic rate in drought stress conditions.
Article
Plant Sciences
Asis Shrestha, Alexander Fendel, Thuy H. Nguyen, Anteneh Adebabay, Annika Stina Kullik, Jan Benndorf, Jens Leon, Ali A. Naz
Summary: Proline accumulation is an important response of plants to abiotic stresses, and its significance for drought stress tolerance in crop plants is still unclear. In this study, we investigated the natural variation of the P5CS1 gene in barley and identified new allelic variants associated with proline accumulation. We also introgressed a high proline accumulating allele from a wild barley accession into a cultivar and found that the transgenic line showed higher proline concentrations and better drought stress tolerance. Furthermore, the transgenic line had lower yield-related trait damage under field conditions compared to the cultivar.
PLANT CELL AND ENVIRONMENT
(2022)
Article
Biotechnology & Applied Microbiology
Ranjit Singh Gujjar, Sittiruk Roytrakul, Wannisa Chuekong, Kanyaratt Supaibulwatana
Summary: Rice plants treated with phenyl-urea-based synthetic cytokinin under drought stress showed enhanced accumulation of hexose sugars and maintained normal hexose sugar contents in flag leaves. Additionally, cytokinin treatment increased sucrose content and mitigated drought-induced senescence, ultimately leading to improved drought adaptability and agro-economic impact on rice plants.
Article
Multidisciplinary Sciences
Suravoot Yooyongwech, Rujira Tisarum, Thapanee Samphumphuang, Muenduen Phisalaphong, Suriyan Cha-um
Summary: This study assessed the effects of Funneliformis mosseae (F), Claroideoglomus etunicatum (C), and Acaulospora fovaeta (A) on indica rice cv. Leum Pua under water withholding conditions. The results showed that the FCA inoculation type improved the chlorophyll content, regulated soluble sugars and free proline, increased phosphorus content, and enhanced plant osmotic potential adaptability. Furthermore, it maintained panicle weight, grain number, and grain maturity under water deficit conditions, suggesting its potential for enhancing food security in the future.
SCIENTIFIC REPORTS
(2023)
Article
Plant Sciences
Jonathan O. Hernandez, Ji Young An, Marilyn S. Combalicer, Jong-Pil Chun, Sang-Keun Oh, Byung Bae Park
Summary: The study revealed that different tree species exhibit varied resistance to water stress, and morpho-anatomical traits and soluble sugar concentration play crucial roles in plant water use efficiency, growth, and physiological responses.
FRONTIERS IN PLANT SCIENCE
(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
D. K. Nayak, S. Sahoo, S. R. Barik, P. Sanghamitra, S. Sangeeta, E. Pandit, K. R. Reshmi Raj, N. Basak, S. K. Pradhan
Summary: In this study, association mapping was used to map six biochemical traits in rice. A wide genetic variation was detected and new QTL were identified. The population structure analysis indicated the effectiveness of the markers used for mapping.
Article
Plant Sciences
Miriam Negussu, Erna Karalija, Chiara Vergata, Matteo Buti, Mirel Subasic, Susanna Pollastri, Francesco Loreto, Federico Martinelli
Summary: This study aimed to uncover the molecular mechanisms of drought tolerance in chickpea. The physiological response of different genotypes to drought stress was assessed, and RNA-sequencing was performed to identify genes involved in drought tolerance. The study found that genotypes with higher drought sensitivity showed more intense changes in gene expression, particularly in genes related to photosynthesis, hormone response, solute transport, and cell wall properties. These findings will contribute to the development of drought-resistant chickpea cultivars.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2023)
Article
Agronomy
Raveendran Muthurajan, Valarmathi Ramanathan, Abhijeet Bansilal Shillak, Suryawanshi Madhuri Pralhad, Chavan Neha Shankarrao, Hifzur Rahman, Rohit Kambale, Jagadeeshselvam Nallathambi, Sudha Tamilselvan, Parani Madasamy
Summary: Engineering transcription factors (TF) show promise in enhancing abiotic stress tolerance in plants, as demonstrated by the study on genetically modified rice variety ADT 43 in South India. The transgenic lines of ADT 43 exhibited increased tolerance to drought and salinity, along with better growth performance and yield retention.
Article
Multidisciplinary Sciences
Bassiouni A. Zayed, Hasnaa A. Ghazy, Mahrous E. Negm, Sherif M. Bassiouni, Adel A. Hadifa, Dalia E. El-Sharnobi, Mohamed M. Abdelhamed, Elsayed A. Abo-Marzoka, Amira M. Okasha, Salah Elsayed, Aitazaz A. Farooque, Zaher Mundher Yaseen
Summary: Aerobic rice cultivation can save almost 50% of irrigation water compared to lowland rice with the appropriate development of genotypes and management practices. Two field trials were conducted to determine the validation of different rice varieties under aerobic cultivation. The results revealed that the planting method varied significantly in all measured parameters.
SCIENTIFIC REPORTS
(2023)
Article
Plant Sciences
Mor Tsamir-Rimon, Shifra Ben-Dor, Ester Feldmesser, Yaara Oppenhimer-Shaanan, Rakefet David-Schwartz, Alon Samach, Tamir Klein
Summary: This study found that trees will degrade starch and produce mannitol to cope with drought conditions, as shown by measurements of nonstructural carbohydrates, tree physiology, and gene expression. Additionally, gene family members potentially relevant to long-term or stress-induced carbon storage were identified.
Article
Plant Sciences
Junyu Wu, Chunyan Yu, Linli Huang, Yinbo Gan
Summary: MADS-box transcription factor OsMADS57 plays a positive role in enhancing salt tolerance in rice and Arabidopsis plants under salt stress by activating the antioxidant system, thereby protecting plants from oxidative damage caused by salinity.
PHYSIOLOGIA PLANTARUM
(2021)
Article
Plant Sciences
Le Zhou, Kun Shi, Xinran Cui, Shaopeng Wang, Chris S. Jones, Zan Wang
Summary: In this study, a transcription factor called MsNAC51 was found to be significantly induced under drought conditions in alfalfa. Overexpression of MsNAC51 enhanced drought tolerance in tobacco, suggesting its potential role in drought resistance.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2023)
Article
Plant Sciences
Yanwei Wang, Jing Sun, Chen Deng, Shouzhen Teng, Guoxin Chen, Zhenhua Chen, Xuean Cui, Thomas P. Brutnell, Xiao Han, Zhiguo Zhang, Tiegang Lu
Summary: This study identified the role of the SEM1 gene in regulating sucrose transport in rice by analyzing two mesophyll starch excess mutants. Through characterization and experimental validation, the relationship between sucrose and vascular cell development was revealed.