Scaling plant responses to high temperature from cell to ecosystem

Jagadish, S. V. Krishna; Way, Danielle; Sharkey, Thomas D.

doi:10.1111/pce.14082

Cited by 15 publications

(6 citation statements)

References 43 publications

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“…Under heat stress, the activity of the invertase enzyme was significantly decreased and thus restricting the supply of hexose sugars. The interaction between sugars and hormones is indicated in sugar transport (73,74) whereas other scientists have reviewed the carbon dynamics and suggested not to draw a general conclusion about the role of sugars in crop reproduction (75). Providing the exogenous acid invertase increased the amount of carbohydrates content as well as increased the spikelet fertility in rice (76).…”

Section: Effects On Parameters Other Than Seedmentioning

confidence: 99%

Impact of Elevated Temperature and Carbon dioxide on Seed Physiology and Yield

Talwar

Bamel²,

Prabhavathi³

2023

Plant Sci. Today

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Food security is of utmost priority to humankind. This is the implication of various interconnected factors that lead to climate change. Elevated temperature and carbon dioxide levels are just 2 of these. The nutrient is an inseparable aspect of food. The change in climate is posing threat not only to the amount of available food but also to the nutrients laden in the food items. Seeds are the miniature form of plants and are a reflection of their future health and nutritional status. The changes in environmental factors predominantly challenge the growth and development of a seed. This review is an attempt to understand the impact of elevated CO2 and temperature on seed germination, the nutritional status of the seed and the yield in form of total seed production. It gives a direction for analysis and future studies that may use the latest available tools like gene editing to tackle and counteract the retarding effect of climate change on these parameters of seed, thereby offering a climate resilient agriculture.

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Section: Effects On Parameters Other Than Seedmentioning

confidence: 99%

Impact of Elevated Temperature and Carbon dioxide on Seed Physiology and Yield

Talwar

Bamel²,

Prabhavathi³

2023

Plant Sci. Today

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“…Studies have revealed that indigenous species of rice could potentially be used as genetic resources for abiotic stresses such as submergence (Luo et al, 2020;Sasayama et al, 2022) drought (Hamzelou et al, 2020;Anilkumar et al, 2023), heat (Prasanth et al, 2012;Khan et al, 2019;Jagadish et al, 2021), etc. However, few limited published studies have reported the significance of wild rice species in elevating salinity tolerance in cultivars (Solis et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Progress and prospects in harnessing wild relatives for genetic enhancement of salt tolerance in rice

Padmavathi,

Bangale,

Rao

et al. 2024

Front. Plant Sci.

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Salt stress is the second most devastating abiotic stress after drought and limits rice production globally. Genetic enhancement of salinity tolerance is a promising and cost-effective approach to achieve yield gains in salt-affected areas. Breeding for salinity tolerance is challenging because of the genetic complexity of the response of rice plants to salt stress, as it is governed by minor genes with low heritability and high G × E interactions. The involvement of numerous physiological and biochemical factors further complicates this complexity. The intensive selection and breeding efforts targeted towards the improvement of yield in the green-revolution era inadvertently resulted in the gradual disappearance of the loci governing salinity tolerance and a significant reduction in genetic variability among cultivars. The limited utilization of genetic resources and narrow genetic base of improved cultivars have resulted in a plateau in response to salinity tolerance in modern cultivars. Wild species are an excellent genetic resource for broadening the genetic base of domesticated rice. Exploiting novel genes of underutilized wild rice relatives to restore salinity tolerance loci eliminated during domestication can result in significant genetic gain in rice cultivars. Wild species of rice, Oryza rufipogon and Oryza nivara, have been harnessed in the development of a few improved rice varieties like Jarava and Chinsura Nona 2. Furthermore, increased access to sequence information and enhanced knowledge about the genomics of salinity tolerance in wild relatives has provided an opportunity for the deployment of wild rice accessions in breeding programs, while overcoming the cross-incompatibility and linkage drag barriers witnessed in wild hybridization. Pre-breeding is another avenue for building material that are ready for utilization in breeding programs. Efforts should be directed towards systematic collection, evaluation, characterization, and deciphering salt tolerance mechanisms in wild rice introgression lines and deploying untapped novel loci to improve salinity tolerance in rice cultivars. This review highlights the potential of wild relatives of Oryza to enhance tolerance to salinity, track the progress of work, and provide a perspective for future research.

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“…2 of 18 salinity are expected to reduce crop yield and modify the areas available for crop cultivation [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…Seed germination and seedling growth represent vulnerable stages in a plant life cycle. It is therefore important to examine the impact of heat stress and salinity on these life stages, as they could limit seedling establishment and negatively impact crop yield [9].…”

Section: Introductionmentioning

confidence: 99%

Adjusting to Increased Temperature and Salinity Associated With Climate Change: Phenotypic Response and Genetic Variation for Seed Germination and Seedling Growth in Alfalfa

Brunet¹,

Hoesley²

2023

Preprint

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Seed germination and seedling growth represent two vulnerable stages in a plant life cycle and it is important to determine how they will be affected by environmental changes associated with climate change. This study examines the impact of salinity levels (0, 50, 100, and 150 mM) at each of three temperatures (15, 25, and 35˚C) on seed germination and radicle growth for three dormant and three non-dormant varieties of conventional, glyphosate resistant, or reduced lignin alfalfa. The genetic basis and phenotypic plasticity for seed germination and seedling growth in response to salinity and temperature were determined. Both traits were phenotypically plastic with respect to temperature and salinity. Seed germination was 87.0% ± 1.7 at 25˚C, 0mM (no salinity), but decreased to 33.9% ± 3.9 germination at 35˚C and 150mM. Radicle length went from 36.7 ± 1.5 mm after four days at 25˚C, 0mM, to 10.5 ± 0.7 mm at 35˚C, 150mM. The phenotypic response brought seed germination and radicle length away from their optimum, but we detected standing genetic variation for both seed germination and radicle length. Selection to increase both traits at high temperature and salinity would facilitate alfalfa establishment under climate change.

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Scaling plant responses to high temperature from cell to ecosystem

Cited by 15 publications

References 43 publications

Impact of Elevated Temperature and Carbon dioxide on Seed Physiology and Yield

Impact of Elevated Temperature and Carbon dioxide on Seed Physiology and Yield

Progress and prospects in harnessing wild relatives for genetic enhancement of salt tolerance in rice

Adjusting to Increased Temperature and Salinity Associated With Climate Change: Phenotypic Response and Genetic Variation for Seed Germination and Seedling Growth in Alfalfa

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