Physiological and molecular implications of multiple abiotic stresses on yield and quality of rice

Beena, R.; Sunitha, N.; Sah, Rameswar Prasad; P., Md Azharudheen T.; Krishna, Gopal; Umesh, Deepika Kumar; Thomas, Sini; Anilkumar, C.; Upadhyay, Sameer; Kumar, Awadhesh; N., Manikanta Ch L.; Behera, Sasmita; Marndi, Bishnu Charan; Siddique, Kadambot H.M.

doi:10.3389/fpls.2022.996514

Cited by 44 publications

(27 citation statements)

References 190 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Indeed, the increase in yield under drought prone environment was not due to heterosis; rather, it was associated with an increase in stress tolerance (Duvick, 1999; Tollenaar et al, 2000). The combination of conventional and modern breeding approaches deserves credit for significant genetic gain achieved for many quantitative traits in rice breeding history; it is also true in drought breeding (Radha et al, 2023). The conventional and modern breeding methodologies can supplement each other at different phases of breeding programmes to augment the possible success in drought tolerance rice breeding (Figure 3).…”

Section: Breeding For Drought Tolerancementioning

confidence: 99%

Conventional and contemporary approaches for drought tolerance rice breeding: Progress and prospects

et al. 2023

View full text Add to dashboard Cite

Drought is becoming a major threat to rice farming across the globe owing to the depletion of water tables in rice‐growing belts. Drought affects rice plants at multiple stages, causing damage at morphological and physio‐biochemical levels, leading to severe losses that exceed losses from all other stresses. The amalgamation of conventional breeding methods with modern molecular biology tools and biometrical methods could help accelerate the genetic gain for drought tolerance in rice. Many drought‐tolerance traits with genetic determinants have been identified and exploited for tolerance rice variety breeding. The integration of genome‐wide association study and genomic selection tools with speed breeding shortened the breeding cycle and aided in rapid improvement of genetic gain. In this review, we emphasized the progress made through classical breeding as well as the limitations and usefulness of current genomic methods in improving drought tolerance. We briefly addressed methods for identifying genetic determinants for drought tolerance and deploying them through genomics‐assisted breeding programmes to develop high‐yielding drought‐tolerant rice cultivars.

show abstract

Section: Breeding For Drought Tolerancementioning

confidence: 99%

Conventional and contemporary approaches for drought tolerance rice breeding: Progress and prospects

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Rice and several other plant species are commonly cultivated in tropical regions subjected to high temperatures, excess radiation, and salinity, especially in paddy soils (Fahad et al, 2019;Radha, 2023). In a future scenario of intensi cation in global climate changes, these adverse combined conditions tend to be intensely aggravated (Mukhopadhyay et al, 2021;Zandalinas et al, 2021) and possible solution such as utilization of tolerant cultivars are scarce to date.…”

Section: Introductionmentioning

confidence: 99%

Heat combined with salinity stimulate antioxidant defense but induce severe impairment in photosynthesis of rice plants

Mendes,

Bonifácio,

Martins

et al. 2024

Preprint

View full text Add to dashboard Cite

Aims To test the hypothesis if high temperature could aggravate salt stress through stimulation of Na+ accumulation, impairment in photosynthesis and generation of oxidative stress in rice leaves.Methods Rice plants were previously exposed to 0 and 100 mM NaCl for eight days at 27°C and afterwards two groups were transferred to high temperature (42°C) for 10 hours (heat and heat + salt) whereas two others remained at 27°C (control and single salt).Results Heat combined with salinity greatly stimulated Na+ accumulation in leaves causing intense decrease in K+/Na+ ratios, inducing significant osmotic and ionic alterations. Stomata were closed intensely causing drastic impairment in CO2 assimilation and decrease in water use efficiency. In contrast, the PSII activity was much lesser affected, corroborated by low increase in closed reaction center fraction of PSII and slight decrease in electron transport rates. Unexpectedly, that stress combination partially favored oxidative protection as indicated by reduction in the levels of H2O2 and lipid peroxidation associated with reduction in the contents of reduced ascorbate and glutathione. These favorable antioxidant responses were accompanied by increases in the activities of ascorbate peroxidases, superoxide dismutases, glutathione peroxidases, and phenol peroxidases whereas catalases and glycolate oxidases decreased. These antioxidant responses were not enough to mitigate overall physiological damages caused by combined stress as indicated by drastic increase in membrane damage.Conclusions High temperature drastically aggravates negative effects caused by salt stress on the photosynthetic efficiency, especially CO2 assimilation, despite that combination has partially favored the antioxidant defense.

show abstract

“…Many stress resistance genes that are tightly linked to SNP, SSR, and STS markers are available (Das et al, 2017). Radha et al (2023) reviewed the impact of high temperatures on rice yield and grain quality parameters and QTLs linked to high temperature tolerance in rice. Marker-assisted selection (MAS) can integrate these genes into breeding populations in combination with conventional breeding approaches.…”

Section: Introductionmentioning

confidence: 99%

“…Many stress resistance genes that are tightly linked to SNP, SSR, and STS markers are available ( Das et al., 2017 ). Radha et al. (2023) reviewed the impact of high temperatures on rice yield and grain quality parameters and QTLs linked to high temperature tolerance in rice.…”

Section: Introductionmentioning

confidence: 99%

Identification of simple sequence repeat markers linked to heat tolerance in rice using bulked segregant analysis in F2 population of NERICA-L 44 × Uma

et al. 2023

View full text Add to dashboard Cite

The damage caused by high temperature is one of the most important abiotic stress affecting rice production. Reproductive stage of rice is highly susceptible to high temperature. The present investigation was undertaken to identify polymorphic microsatellite markers (SSR) associated with heat tolerance. The rice cultivars NERICA– L 44 (heat tolerant) and Uma (heat susceptible) were crossed to generate F1 and F2 populations. The F2 population was subjected to heat stress at >38°C and the 144 F2 plants were evaluated for their tolerance. The results note that the mean of the F2 population was influenced by the tolerant parent with regards to the traits of plant height, membrane stability index, photosynthetic rate, stomatal conductance, evapotranspiration rate, pollen viability, spikelet fertility and 1000 grain weight. Ten each of the extremely susceptible and tolerant plants were selected based on the spikelet fertility percentage. Their DNA was pooled into tolerant and susceptible bulks and Bulked Segregant Analysis (BSA) was carried out using 100 SSR markers to check for polymorphism. The survey revealed a polymorphism of 18% between the parents. RM337, RM10793, RM242, RM5749, RM6100, RM490, RM470, RM473, RM222 and RM556 are some of the prominent markers that were found to be polymorphic between the parents and the bulks. We performed gene annotation and enrichment analysis of identified polymorphic markers. Result revealed that the sequence specific site of that chromosome mostly enriched with biological processes like metabolic pathway, molecular mechanism, and subcellular function. Among that RM337 was newly reported marker for heat tolerance. Expression analysis of two genes corresponds to RM337 revealed that LOP1 (LOC_Os08g01330) was linked to high temperature tolerance in rice. The results demonstrate that BSA using SSR markers is useful in identifying genomic regions that contribute to thermotolerance.

show abstract

Physiological and molecular implications of multiple abiotic stresses on yield and quality of rice

Cited by 44 publications

References 190 publications

Conventional and contemporary approaches for drought tolerance rice breeding: Progress and prospects

Conventional and contemporary approaches for drought tolerance rice breeding: Progress and prospects

Heat combined with salinity stimulate antioxidant defense but induce severe impairment in photosynthesis of rice plants

Identification of simple sequence repeat markers linked to heat tolerance in rice using bulked segregant analysis in F2 population of NERICA-L 44 × Uma

Contact Info

Product

Resources

About