Pre-anthesis night warming improves post-anthesis physiological activity and plant productivity to post-anthesis heat stress in winter wheat (Triticum aestivum L.)

Fan, Yu; Lv, Zhaoyan; Zhang, Yue; Ma, Liangliang; Qin, Boya; Li, Qiuxia; Zhang, Wenjing; Ma, Shangyu; Ma, Chunyan; Huang, Zhenglai

doi:10.1016/j.envexpbot.2022.104819

Cited by 11 publications

(6 citation statements)

References 46 publications

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“…These findings suggest that the pre-heat treatment during the booting stage conferred resilience to plants, enabling them to withstand HS during the flowering stage. This finding aligns with the study by [ 23 , 37 ], which demonstrates that pre-anthesis heat acclimation improves the mobilization of stored stem reserves into growing grains by enhancing the activity of fructan-catalyzing enzymes, such as SST and FFT.…”

Section: Discussionsupporting

confidence: 92%

Quantifying the Individual and Combined Effects of Short-Term Heat Stress at Booting and Flowering Stages on Nonstructural Carbohydrates Remobilization in Rice

Mahmood,

Wang,

Raza

et al. 2024

Plants

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Rice production is threatened by climate change, particularly heat stress (HS). Nonstructural carbohydrates (NSCs) remobilization is a key physiological mechanism that allows rice plants to cope with HS. To investigate the impact of short-term HS on the remobilization of nonstructural carbohydrates (NSCs) in rice, two cultivars (Huaidao-5 and Wuyunjing-24) were subjected to varying temperature regimes: 32/22/27 °C as the control treatment, alongside 40/30/35 °C and 44/34/39 °C, for durations of 2 and 4 days during the booting, flowering, and combined stages (booting + flowering) within phytotrons across the years 2016 and 2017. The findings revealed that the stem’s NSC concentration increased, while the panicle’s NSCs concentration, the efficiency of NSCs translocation from the stem, and the stem NSC contribution to grain yield exhibited a consistent decline. Additionally, sugar and starch concentrations increased in leaves and stems during late grain filling and maturity stages, while in panicles, the starch concentration decreased and sugar concentration increased. The heat-tolerant cultivar, Wuyunjing-24, exhibited higher panicle NSC accumulation under HS than the heat-sensitive cultivar, Huaidao-5, which had more stem NSC accumulation. The flowering stage was the most vulnerable to HS, followed by the combined and booting stages. Heat degree days (HDDs) were utilized to quantify the effects of HS on NSC accumulation and translocation, revealing that the flowering stage was the most affected. These findings suggest that severe HS makes the stem the primary carbohydrate storage sink, and alleviation under combined HS aids in evaluating NSC accumulation, benefiting breeders in developing heat-tolerant rice varieties.

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Section: Discussionsupporting

confidence: 92%

Quantifying the Individual and Combined Effects of Short-Term Heat Stress at Booting and Flowering Stages on Nonstructural Carbohydrates Remobilization in Rice

Mahmood,

Wang,

Raza

et al. 2024

Plants

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“…The optimal temperature for the growth of C4 plants has been determined in the range of 27-35°C [31]. On the other hand, the effect of global warming on the rising day and night temperatures is not the same, and at night, it is greater than during days [32]. According to these facts, in this research, the difference between day and night temperature in the investigated regimes was considered 5°C.…”

Section: Discussionmentioning

confidence: 99%

Simultaneously evaluation of physiological and biochemical responses in the leaves and roots of common Iranian bermudagrass [Cynodon dactylon L. (Pers.)] accessions that can tolerate a wide range of temperature fluctuations

Amini

Sher

Chehrazi

et al. 2022

Preprint

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The average temperature of the earth's surface is increasing swiftly, negatively affecting the urban space's green cover. Using local genetic variation based on retrieving native populations has been proposed as a useful option to deal with global warming and preserve turfgrass quality. In this study, to identify Iranian common bermudagrass [Cynodon dactylon L. (Pres.)] accessions which could endure a wide range of temperature fluctuations, eight Iranian accessions of common bermudagrass were collected from eight provinces with different climatic conditions including Taft, Naein, Malayer, Gardane-Heyran, Safashahr, Gorgan (as cold tolerant accessions) and Ahvaz (as a native accession to tropical regions) along with a foreign cultivar (California origin named Blackjack). They were subjected to five temperature regimes, including 35/30°C, 40/35°C, 45/40°C, 50/45°C, and 50/50° day/night cycles for 21 days. Evaluation of physiological parameters (total chlorophyll, leaf relative water content, electrolyte leakage, root viability and total soluble proteins), osmolytes (proline, total soluble carbohydrates and starch), antioxidants (superoxide dismutase, ascorbic peroxidase, catalase, and peroxidase enzymes) in the leaves and roots simultaneously revealed that among investigated accessions Gorgan with low electrolyte leakage in leaves and starch storage in roots and high Tchl, RWC, antioxidant enzymes activity and total soluble carbohydrates in leaves and roots could endure the harsh conditions of the 50/45°C temperature regime with acceptable turfgrass quality. Gorgan can endure almost 65°C temperature fluctuations and could be introduced as a cold- and heat-stress tolerant accession. These findings provided that a heat tolerant plant with controlling respiratory rate in roots and efficiently breaking down starch storage to carbohydrates could provide the energy required for whole plant metabolic activities. This experiment also highlights the importance of simultaneously investigating evaluated parameters in leaves and roots.

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“…The activity of these enzymes reflects the flag leaves' capacity to convert photosynthetic products into sucrose [7]. SPS is a key enzyme in the regulation of sucrose synthesis, and the sucrose content in flag leaves is significantly positively correlated with SPS activity [8]. Different nitrogen fertilizer management methods have a significant regulatory effect on sucrose metabolism.…”

Section: Introductionmentioning

confidence: 99%

Effects of Root Trace Nitrogen Reduction in Arid Areas on Sucrose–Starch Metabolism of Flag Leaves and Grains and Yield of Drip-Irrigated Spring Wheat

Ma,

Wang,

Liu

et al. 2024

Agronomy

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To investigate the effect of nitrogen (N) application on the carbon metabolism and yield of flag leaves and grains of spring wheat under drip irrigation in Xinjiang, a split-zone design was adopted from 2020 to 2021, with strong-gluten wheat, Xinchun 37 (XC37), and medium-gluten wheat, Xinchun 6 (XC 6), as the main zones and different nitrogen application rates as the sub-zones. Four nitrogen application rates of 0, 210, 255, and 300 kg·ha−1 (CK2, B1, A1, and CK1, respectively) were set to analyze and compare the nitrogen response of key enzyme activity, soluble sugar, and sucrose and starch content in flag leaves and grains to control yield formation. The results showed that with the increase in nitrogen application, the activities of sucrose phosphate synthase (SPS) and sucrose synthase (SS) in flag leaves; the activities of SS, adenosine diphosphate glucose pyrophosphorylase (ADPG-PPase), soluble starch synthase (SSS), granule-bound starch synthase (GBSS), and starch branching enzyme (SBE) in grains; the contents of soluble sugar and sucrose in the flag leaves; and the yield, all first increased and then decreased. There is a significant difference between A1 (255 kg·ha−1) and the CK1 (300 kg·ha−1), B1 (210 kg·ha−1), and CK2 (0 kg·ha−1) treatments under the above indicators, with increases of 8–158%, 9–155%, 8–53%, 5–63%, 3–86%, 3–57%, 9–79%, 9–197%, and 9–113%, as well as higher levels of amylose, amylopectin, and total starch content than other treatments by 2–30%, 11–84%, and 8–63%, respectively. Correlation and stepwise regression analyses indicated highly a significant positive correlation between the yield and soluble sugar and sucrose of flag leaves and grains, as well as their key enzymes and starch. Among them, soluble sugar in grains, amylopectin, and sucrose in grains have the greatest impact on the yield of XC37, determining 85% of its yield. SSS, soluble sugars in grains, amylopectin, and SBE have the greatest impact on the yield of XC 6, determining 80% of its yield. The starch showed a highly significant positive correlation with ADPG-PPase, SSS, GBSS, and SBE. There was a significant interaction effect between the nitrogen application rate and variety, with better performance observed in Xinchun 37 compared to Xinchun 6. Under drip irrigation conditions in arid areas, a nitrogen application of 255 kg·ha−1 can effectively regulate the metabolism of sucrose to starch in the flag leaves and grains of spring wheat, which is conducive to the accumulation of starch in grains and the formation of yield.

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Pre-anthesis night warming improves post-anthesis physiological activity and plant productivity to post-anthesis heat stress in winter wheat (Triticum aestivum L.)

Cited by 11 publications

References 46 publications

Quantifying the Individual and Combined Effects of Short-Term Heat Stress at Booting and Flowering Stages on Nonstructural Carbohydrates Remobilization in Rice

Quantifying the Individual and Combined Effects of Short-Term Heat Stress at Booting and Flowering Stages on Nonstructural Carbohydrates Remobilization in Rice

Simultaneously evaluation of physiological and biochemical responses in the leaves and roots of common Iranian bermudagrass [Cynodon dactylon L. (Pers.)] accessions that can tolerate a wide range of temperature fluctuations

Effects of Root Trace Nitrogen Reduction in Arid Areas on Sucrose–Starch Metabolism of Flag Leaves and Grains and Yield of Drip-Irrigated Spring Wheat

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