Publications by authors named "Ray Singh Rathore"
Article Synopsis
- Developing rice varieties with shorter life cycles is essential for sustainable agriculture, helping to reduce water and fertilizer use while allowing for earlier harvests.
- The gene GHD7 is crucial for regulating flowering time in rice and has shown potential in increasing yield when overexpressed in the IR64 rice variety, resulting in a 66% increase in grain number and accelerated flowering.
- The enhanced rice plants also display better resilience to drought and salinity, highlighting the importance of genetic manipulation in improving rice productivity amid climate change.
Amino acids are a major source of nourishment for people living in regions where rice is a staple food. However, rice grain is deficient in essential amino acids, such as lysine. The activity of dihydrodipicolinate synthase (DHDPS) enzyme is crucial for lysine production in higher plants, but it is highly regulated through a feedback inhibition by its end product lysine, leading to its limited activity in the grain and resulting in low lysine accumulation.
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- Meristem activity is crucial for normal plant growth and adaptation to environmental stresses, with cytokinin playing a key role in regulating this process.
- The study focuses on the protein LONELY GUY (LOG), which activates cytokinin and shows that overexpressing OsLOG in rice can significantly improve growth, biomass, and grain yield even under stress conditions like drought and salinity.
- OsLOG overexpression leads to better stress resilience by reducing harmful compounds and enhancing antioxidant activities, suggesting its potential for boosting crop yield and promoting sustainable agriculture.
Overexpression of OsDJ-1C in rice improves root architecture, photosynthesis, yield and abiotic stress tolerance through modulating methylglyoxal levels, antioxidant defense, and redox homeostasis. Exposure to abiotic stresses leads to elevated methylglyoxal (MG) levels in plants, impacting seed germination and root growth. In response, the activation of NADPH-dependent aldo-keto reductase and glutathione (GSH)-dependent glyoxalase enzymes helps to regulate MG levels and reduce its toxic effects.
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- DTH8 is a gene from the rice variety Oryza sativa L. cv IR64 that impacts rice yield, heading date, and stress tolerance, particularly under drought and salinity conditions.
- This gene regulates the expression of several key genes involved in flowering and growth, enhancing traits such as early flowering and increased tiller numbers.
- Transgenic plants with DTH8 showed better stress tolerance and yield retention compared to wild-type plants, indicating its role as a positive regulator in adapting rice crops to various environmental challenges.
Reductions in crop yields as a consequence of global climate change threaten worldwide food security. It is therefore imperative to develop high-yielding crop plants that show sustainable production under stress conditions. In order to achieve this aim through breeding or genetic engineering, it is crucial to have a complete and comprehensive understanding of the molecular basis of plant architecture and the regulation of its sub-components that contribute to yield under stress.
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