A microscopic scenario on recovery mechanisms under waterlogging and submergence stress in rice

Phukan, Ujjal J.; Jindal, Sunita; Laldinsangi, C.; Singh, Prashant Kumar; Longchar, Bendangchuchang

doi:10.1007/s00425-023-04285-y

Cited by 4 publications

(3 citation statements)

References 100 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The major adaptive feature of rice in response to submergence is the formation of aerenchyma, which is well-developed in the leaves, sheaths, roots, and internodes [2,10]. Ethylene triggers the formation of aerenchyma in maize and rice [5].…”

Section: Aerenchyma Formationmentioning

confidence: 99%

“…Limited oxygen availability impedes cell division and elongation, thus inhibiting the elongation of rice roots [50]. Under submerged conditions, rice root systems tend to become shallower and more compact, accompanied by an increase in adventitious roots (ARs) [10]. Adventitious roots reduce the distance between oxygen and the nutrient supply from the shoot.…”

Section: Adventitious Roots Formationmentioning

confidence: 99%

“…Thus, anaerobic germination (AG) and coleoptile elongation are two major Plants 2024, 13, 1178 2 of 11 adaptive traits during the early growth stage of rice upon submergence [6][7][8][9]. From seedlings to mature plants for harvesting, submergence seriously compromises the overall growth, development, and yield potential of rice [10]. Based on flooding regimes, rice can be roughly divided into two major ecotypes: rain-fed lowland rice that experiences shallow submergence, and deepwater rice that experiences medium to deep submergence during the monsoon season [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Flooding Tolerance of Rice: Regulatory Pathways and Adaptive Mechanisms

Wang,

Han,

Huang

et al. 2024

Plants

View full text Add to dashboard Cite

Rice is a major food crop for more than half of the world’s population, while its production is seriously threatened by flooding, a common environmental stress worldwide. Flooding leads to oxygen deficiency, which is a major problem for submerged plants. Over the past three decades, significant progress has been made in understanding rice adaptation and molecular regulatory mechanisms in response to flooding. At the seed germination and seedling establishment stages, the CIPK15-SnRK1A-MYBS1 signaling cascade plays a central role in determining rice submergence tolerance. However, from seedlings to mature plants for harvesting, SUB1A- and SK1/SK2-regulated pathways represent two principal and opposite regulatory mechanisms in rice. In addition, phytohormones, especially gibberellins, induce adaptive responses to flooding throughout the rice growth period. This review summarizes the significant adaptive traits observed in flooded rice varieties and updates the molecular genetics and mechanisms of submergence tolerance in rice.

show abstract

Section: Aerenchyma Formationmentioning

confidence: 99%

Section: Adventitious Roots Formationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Flooding Tolerance of Rice: Regulatory Pathways and Adaptive Mechanisms

Wang,

Han,

Huang

et al. 2024

Plants

View full text Add to dashboard Cite

show abstract

Deciphering Rice Genotypes Under Submergence Stress and Optimum Condition for Yield Stability Analysis

Pradhan,

Das,

Kumar

et al. 2024

J Agronomy Crop Science

View full text Add to dashboard Cite

In the flood‐prone area, the improved high‐yielding variety of rice declines its vegetative growth and suffers substantial yield losses due to water stagnation. To address the issue measurement, the present work implemented 45 rice genotypes in a randomized complete block design with three replicates over three consecutive years (2018–2021) across submergence (E1, E3, E5) and optimum environments (E2, E4, E6) to assess the adaptability of these genotypes and identify the most desirable type by various stability indices. A significant genotype × environment interaction (GEI) was found in the combined ANOVA of yield and its component traits. The combined analyses of yield component traits through the multi‐trait stability index (MTSI) and yield‐stability statistics (YSi) found the most promising genotypes G20 and G32, respectively. The mean grain yield advantage was found in G18 under submerged conditions and G25 across the environments. A highly significant correlation (p < 0.01) exists between the stress tolerance index and yield in both submergence (r = 0.96) and normal (r = 0.90) circumstances. Among genotypes G18, G5 and G19, G20 showed strong stability for grain yield based on univariate stability parameters (YSi, σi2, Wi2, S2d and bi). An AMMI1 biplot analysis indicated that genotypes G37, G45, G32, G31, G27, G28, G19, G17 and G7 exhibited stability for grain yields, with IPCA1 values approaching zero. The GGE biplot analysis on yield was constructed into two mega‐environments, where G18 (Narkel Chari), G31 (CR Dhan‐500), G9 (Bhasha Manik) and G40 (SS‐1) were winners of submergence stress and G25 (Narayan Kamini) was the winner of normal environments.

show abstract

Harnessing weedy rice as functional food and source of novel traits for crop improvement

Bhupenchandra,

Chongtham,

Gangarani Devi

et al. 2024

Plant Cell & Environment

View full text Add to dashboard Cite

A relative of cultivated rice (Oryza sativa L.), weedy or red rice (Oryza spp.) is currently recognized as the dominant weed, leading to a drastic loss of yield of cultivated rice due to its highly competitive abilities like producing more tillers, panicles, and biomass with better nutrient uptake. Due to its high nutritional value, antioxidant properties (anthocyanin and proanthocyanin), and nutrient absorption ability, weedy rice is gaining immense research attentions to understand its genetic constitution to augment future breeding strategies and to develop nutrition‐rich functional foods. Consequently, this review focuses on the unique gene source of weedy rice to enhance the cultivated rice for its crucial features like water use efficiency, abiotic and biotic stress tolerance, early flowering, and the red pericarp of the seed. It explores the debating issues on the origin and evolution of weedy rice, including its high diversity, signalling aspects, quantitative trait loci (QTL) mapping under stress conditions, the intricacy of the mechanism in the expression of the gene flow, and ecological challenges of nutrient removal by weedy rice. This review may create a foundation for future researchers to understand the gene flow between cultivated crops and weedy traits and support an improved approach for the applicability of several models in predicting multiomics variables.

show abstract

A microscopic scenario on recovery mechanisms under waterlogging and submergence stress in rice

Cited by 4 publications

References 100 publications

Flooding Tolerance of Rice: Regulatory Pathways and Adaptive Mechanisms

Flooding Tolerance of Rice: Regulatory Pathways and Adaptive Mechanisms

Deciphering Rice Genotypes Under Submergence Stress and Optimum Condition for Yield Stability Analysis

Harnessing weedy rice as functional food and source of novel traits for crop improvement

Contact Info

Product

Resources

About