Effects of chilling at different growth stages on rice photosynthesis, plant growth, and yield

Shi, Yuanhao; Guo, Erjing; Cheng, Xue; Wang, Lizhi; Jiang, Shukun; Yang, Xiaona; Ma, Huiqin; Zhang, Tianyi; Li, Tao; Yang, Xiaoguang

doi:10.1016/j.envexpbot.2022.105045

Cited by 19 publications

(10 citation statements)

References 45 publications

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“…Chilling reduces the rate of photosynthesis and dry matter accumulation, which would ultimately result in grain yield loss for rice (Allen & Ort, 2001; Luo, 2011; Shi, Guo, Cheng, et al, 2022; Thakur et al, 2010). Our results showed that chilling treatments impaired photosynthesis, restrained the source availability and eventually led to grain yield reduction due to the carbon limitation.…”

Section: Discussionmentioning

confidence: 99%

“…Rice plants were cultivated in plastic pots, and the plant density was 3 plants per pot (22 cm diameter × 30 cm height). Water and fertilizer management practices were drawn from Shi, Guo, Cheng, et al (2022). In each pot, 2 g ammonium sulphate, 1 g potassium sulphate and 1 g diammonium phosphate were applied as the basal fertilizer.…”

Section: Methodsmentioning

confidence: 99%

“…height). Water and fertilizer management practices were drawn from Shi, Guo, Cheng, et al (2022). In each pot, 2 g ammonium sulphate, 1 g potassium sulphate and 1 g diammonium phosphate were applied as the basal fertilizer.…”

Section: Experimental Design and Managementmentioning

confidence: 99%

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An experimental study on the effects of intermittent chilling at different growth stages on rice yield in Northeast China

Shi

Wang²,

Jiang³

et al. 2023

J Agronomy Crop Science

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In Northeast China, the frequency and intensity of chilling events has been increasing continuously, which places regional rice production at an increasing risk for yield loss.Previous studies have shown that continuous chilling at the tillering, booting and flowering stages could reduce rice grain yield. However, the effects of intermittent chilling at different growth stages on rice yield have rarely been reported. In this study, we conducted a temperature-controlled experiment on rice plants at the tillering, booting and flowering stages, with both continuous and intermittent chilling treatments at two chilling temperatures and four chilling durations. The results showed that rice grain yield was most affected by chilling at the booting stage, followed by chilling at the flowering stage and least affected by chilling at the tillering stage. For per 1 day increase in chilling duration, the continuous (intermittent) chilling treatment at T1 (11°C/12°C/12°C) at the tillering, booting and flowering stages decreased the grain yield per plant by 1.0%, 6.0% and 2.9% (0.9%, 2.7% and 1.6%), respectively. For per 10°C•day increase in cooling degree days, the continuous (intermittent) chilling treatment at the booting stage decreased the grain yield per plant, spikelet fertility, grain number per spike and thousand grain weight by 10.7%, 7.9%, 5.4% and 1.6% (5.6%, 1.5%, 4.4% and 1.2%), respectively. While the continuous (intermittent) chilling treatment at the flowering stage decreased the grain yield per plant and spikelet fertility by 4.9% and 3.9% (2.8% and 3.2%), respectively. Our study is complementary to the current knowledge gap concerning the mechanism of chilling-induced yield losses for rice. In particular, the results of this study could be used to (a) modify the chilling effects algorithms in rice models to improve the simulation accuracy in rice yields and (b) target the genetic features to breed new rice varieties with greater cold tolerance.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

An experimental study on the effects of intermittent chilling at different growth stages on rice yield in Northeast China

Shi

Wang²,

Jiang³

et al. 2023

J Agronomy Crop Science

Self Cite

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“…Transcriptome analysis revealed that low nitrogen stress reduced the expression levels of genes related to the apple antenna system, light absorption, and electron transfer (Wen et al, 2022). A reduction in photosynthesis ultimately leads to a decrease in biomass production and yield (Shi et al, 2022). Glycolysis, the pentose phosphate pathway (PPP), and the tricarboxylic acid (TCA) cycle are the major metabolic pathways in plants and are influenced by nitrogen supply, providing energy and carbon skeletons for other metabolic pathways.…”

Section: Introductionmentioning

confidence: 99%

Low nitrogen stress-induced transcriptome changes revealed the molecular response and tolerance characteristics in maintaining the C/N balance of sugar beet (Beta vulgaris L.)

Liu

et al. 2023

Front. Plant Sci.

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Nitrogen (N) is an essential macronutrient for plants, acting as a common limiting factor for crop yield. The application of nitrogen fertilizer is related to the sustainable development of both crops and the environment. To further explore the molecular response of sugar beet under low nitrogen (LN) supply, transcriptome analysis was performed on the LN-tolerant germplasm ‘780016B/12 superior’. In total, 580 differentially expressed genes (DEGs) were identified in leaves, and 1,075 DEGs were identified in roots (log2|FC| ≥ 1; q value < 0.05). Gene Ontology (GO), protein−protein interaction (PPI), and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses clarified the role and relationship of DEGs under LN stress. Most of the downregulated DEGs were closely related to “photosynthesis” and the metabolism of “photosynthesis-antenna proteins”, “carbon”, “nitrogen”, and “glutathione”, while the upregulated DEGs were involved in flavonoid and phenylalanine biosynthesis. For example, GLUDB (glutamate dehydrogenase B) was identified as a key downregulated gene, linking carbon, nitrogen, and glutamate metabolism. Thus, low nitrogen-tolerant sugar beet reduced energy expenditure mainly by reducing the synthesis of energy-consuming amino acids, which in turn improved tolerance to low nitrogen stress. The glutathione metabolism biosynthesis pathway was promoted to quench reactive oxygen species (ROS) and protect cells from oxidative damage. The expression levels of nitrogen assimilation and amino acid transport genes, such as NRT2.5 (high-affinity nitrate transporter), NR (nitrate reductase [NADH]), NIR (ferredoxin-nitrite reductase), GS (glutamine synthetase leaf isozyme), GLUDB, GST (glutathione transferase) and GGT3 (glutathione hydrolase 3) at low nitrogen levels play a decisive role in nitrogen utilization and may affect the conversion of the carbon skeleton. DFRA (dihydroflavonol 4-reductase) in roots was negatively correlated with NIR in leaves (coefficient = −0.98, p < 0.05), suggesting that there may be corresponding remote regulation between “flavonoid biosynthesis” and “nitrogen metabolism” in roots and leaves. FBP (fructose 1,6-bisphosphatase) and PGK (phosphoglycerate kinase) were significantly positively correlated (p < 0.001) with Ci (intercellular CO2 concentration). The reliability and reproducibility of the RNA-seq data were further confirmed by real-time fluorescence quantitative PCR (qRT−PCR) validation of 22 genes (R2 = 0.98). This study reveals possible pivotal genes and metabolic pathways for sugar beet adaptation to nitrogen-deficient environments.

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“…An inflated source/sink ratio may result in a waste of carbon assimilation, and a slow output of photosynthetic products from leaves will feed back to inhibit source assimilation activity [ 4 , 5 ]. On the other hand, a low source/sink ratio may lead to the consumption of assimilate from source organs and a decline in the photosynthetic area and yield [ 6 ]. Therefore, a reasonable source/sink ratio is crucial for achieving high crop yields.…”

Section: Introductionmentioning

confidence: 99%

The Sink-Source Relationship in Cucumber (Cucumis sativus L.) Is Modulated by DNA Methylation

Wang,

Zhang,

et al. 2023

Plants

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The optimization of the sink-source relationship is of great importance for crop yield regulation. Cucumber is a typical raffinose family oligosaccharide (RFO)-transporting crop. DNA methylation is a common epigenetic modification in plants, but its role in sink-source regulation has not been demonstrated in RFO-translocating species. Here, whole-genome bisulfite sequencing (WGBS-seq) was conducted to compare the nonfruiting-node leaves (NFNLs) and leaves of fruit setting (FNLs) at the 12th node by removing all female flowers in other nodes of the two treatments. We found considerable differentially methylated genes enriched in photosynthesis and carbohydrate metabolic processes. Comparative transcriptome analysis between FNLs and NFNLs indicated that many differentially expressed genes (DEGs) with differentially methylated regions were involved in auxin, ethylene and brassinolide metabolism; sucrose metabolism; and RFO synthesis pathways related to sink-source regulation. Moreover, DNA methylation levels of six sink-source-related genes in the pathways mentioned above decreased in leaves after 5-aza-dC-2′-deoxycytidine (5-Aza-dC, a DNA methyltransferase inhibitor) treatment on FNLs, and stachyose synthase (CsSTS) gene expression, enzyme activity and stachyose content in RFO synthesis pathway were upregulated, thereby increasing fruit length and dry weight. Taken together, our findings proposed an up-to-date inference for the potential role of DNA methylation in the sink-source relationship, which will provide important references for further exploring the molecular mechanism of DNA methylation in improving the yield of RFO transport plants.

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Effects of chilling at different growth stages on rice photosynthesis, plant growth, and yield

Cited by 19 publications

References 45 publications

An experimental study on the effects of intermittent chilling at different growth stages on rice yield in Northeast China

An experimental study on the effects of intermittent chilling at different growth stages on rice yield in Northeast China

Low nitrogen stress-induced transcriptome changes revealed the molecular response and tolerance characteristics in maintaining the C/N balance of sugar beet (Beta vulgaris L.)

The Sink-Source Relationship in Cucumber (Cucumis sativus L.) Is Modulated by DNA Methylation

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