Molecular Research in Rice

Subudhi, Prasanta K.

doi:10.3390/ijms241210063

Cited by 4 publications

(2 citation statements)

References 16 publications

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“…These crops not only serve as a primary source of income for millions of farmers worldwide [3,7,8] but also have extensive applications in biofuels, industrial materials, and other non-food products, thereby contributing to economic growth and sustainability [9][10][11]. Among these crops, maize is notably one of the most extensively cultivated across diverse agro-ecological zones [3,[12][13][14][15]. However, the productivity and sustainability of these crops are challenged by several abiotic stresses, including drought, salinity, high and low temperature, pesticide exposure, and heavy metal contamination, which threaten global food security [4,[16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Melatonin-Mediated Molecular Responses in Plants: Enhancing Stress Tolerance and Mitigating Environmental Challenges in Cereal Crop Production

Muhammad,

Ahmad,

Shen

2024

IJMS

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Cereal crops are crucial for global food security; however, they are susceptible to various environmental stresses that significantly hamper their productivity. In response, melatonin has emerged as a promising regulator, offering potential benefits for stress tolerance and crop growth. This review explores the effects of melatonin on maize, sorghum, millet, rice, barley, and wheat, aiming to enhance their resilience to stress. The application of melatonin has shown promising outcomes, improving water use efficiency and reducing transpiration rates in millet under drought stress conditions. Furthermore, it enhances the salinity and heavy metal tolerance of millet by regulating the activity of stress-responsive genes. Similarly, melatonin application in sorghum enhances its resistance to high temperatures, low humidity, and nutrient deficiency, potentially involving the modulation of antioxidant defense and aspects related to photosynthetic genes. Melatonin also exerts protective effects against drought, salinity, heavy metal, extreme temperatures, and waterlogging stresses in maize, wheat, rice, and barley crops by decreasing reactive oxygen species (ROS) production through regulating the antioxidant defense system. The molecular reactions of melatonin upregulated photosynthesis, antioxidant defense mechanisms, the metabolic pathway, and genes and downregulated stress susceptibility genes. In conclusion, melatonin serves as a versatile tool in cereal crops, bolstering stress resistance and promoting sustainable development. Further investigations are warranted to elucidate the underlying molecular mechanisms and refine application techniques to fully harness the potential role of melatonin in cereal crop production systems.

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Section: Introductionmentioning

confidence: 99%

Melatonin-Mediated Molecular Responses in Plants: Enhancing Stress Tolerance and Mitigating Environmental Challenges in Cereal Crop Production

Muhammad,

Ahmad,

Shen

2024

IJMS

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“…Rice ( Oryza sativa L.) is one of the major food crops in the world, serving as a caloric foundation for more than half of the world’s population [ 1 , 2 , 3 ]. Seed yield is the ultimate goal of rice production, which is dependent on floral organ development.…”

Section: Introductionmentioning

confidence: 99%

Characterization and Gene Mapping of an Open-Glume Oryza sativa L. Mutant

Mao

Zheng

Chen

et al. 2023

IJMS

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Floral organ development determines agricultural productivity by affecting seed development, seed quality, and final yield. In this study, we described the novel ogl mutant in rice (Oryza sativa L.), which is characterized by an open-glume phenotype, increased pistil number, reduced stamen number, decreased seed setting rate, and smaller rice grains. Genetic analysis showed that the open-glume phenotype might be controlled by a recessive qualitative trait locus. Employing bulked segregant analysis (BSA), one candidate region was identified on rice chromosome 1. The glume opening phenotype cosegregated with SNP (Chr1:1522703), which was located at the start codon of one transcript of OsJAG, resulting in partial loss of OsJAG function. cDNA analysis revealed that OsJAG encodes two transcript variants. Compared to normal plants, the expression of OsJAG.1 was upregulated in open-glume plants. When investigating the glume phenotype, we found that the expression of genes related to floral development changed greatly in open-glume plants. Taken together, this work increases our understanding of the developmental role of OsJAG in rice floral development.

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