Combined impact of heat stress and phosphate deficiency on growth and photochemical activity of sheepgrass (Leymus chinensis)

Li, Lingyu; Yang, Haomeng; Liu, Peng; Ren, Weibo; Wu, Xuezhuang; Huang, Fang

doi:10.1016/j.jplph.2018.10.008

Cited by 11 publications

(9 citation statements)

References 32 publications

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“…High temperature is an abiotic stress factor with a great impact on crop yields and quality. The North China Plain's typical temperature and monsoonal climate means that agricultural production is often subjected to the frequency and intensity of heat waves (Li et al, 2018;Suchul & Eltahir, 2018). High temperature and drought stress often cause declines in the production and quality of maize, particularly during the early stages of the growth period (Cairns et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Functional characterization of maize heat shock transcription factor gene ZmHsf01 in thermotolerance

Zhang

et al. 2020

PeerJ

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Background Heat waves can critically influence maize crop yields. Plant heat shock transcription factors (HSFs) play a key regulating role in the heat shock (HS) signal transduction pathway. Method In this study, a homologous cloning method was used to clone HSF gene ZmHsf01 (accession number: MK888854) from young maize leaves. The transcript levels of ZmHsf01 were detected using qRT-PCR in different tissues and treated by HS, abscisic acid (ABA), hydrogen peroxide (H2O2), respectively, and the functions of gene ZmHsf01 were studied in transgenic yeast and Arabidopsis. Result ZmHsf01 had a coding sequence (CDS) of 1176 bp and encoded a protein consisting of 391 amino acids. The homologous analysis results showed that ZmHsf01 and SbHsfA2d had the highest protein sequence identities. Subcellular localization experiments confirmed that ZmHsf01 was localized in the nucleus. ZmHsf01 was expressed in many maize tissues. It was up-regulated by HS, and up-regulated in roots and down-regulated in leaves under ABA and H2O2treatments. ZmHsf01-overexpressing yeast cells showed increased thermotolerance. In Arabidopsis seedlings, ZmHsf01 compensated for the thermotolerance defects of mutant athsfa2, and ZmHsf01-overexpressing lines showed enhanced basal and acquired thermotolerance. When compared to wild type (WT) seedlings, ZmHsf01-overexpressing lines showed higher chlorophyll content and survival rates after HS. Heat shock protein (HSP) gene expression levels were more up-regulated in ZmHsf01-overexpressing Arabidopsis seedlings than WT seedlings. These results suggest that ZmHsf01 plays a vital role in response to HS in plant.

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Section: Introductionmentioning

confidence: 99%

Functional characterization of maize heat shock transcription factor gene ZmHsf01 in thermotolerance

Zhang

et al. 2020

PeerJ

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“…Moreover, quantitative information on the current state of plant performance under stress conditions could be explored via PI abs and Fv/Fm measurements [14,19]. The observed reduction in the values of Fv/Fm in stressed wheat leaves (Figure 3a) may result from the conformational changes of the reaction center of PSII [85], which causes imbalance between the generation and utilization of electrons [11,12]. Meanwhile, it was observed that PI abs decreased in heat-stressed wheat leaves (Figure 3b).…”

Section: Discussionmentioning

confidence: 99%

“…High temperature directly damages the photosynthetic systems, particularly PSII [9], concomitant with distortion of the membrane integrity [10,11]. Additionally, chlorophyll fluorescence (Fv/Fm; PI abs ) information is considered an important parameter for estimating the photosynthetic apparatus damage in heat-stressed leaves [12]. It has been described that heat stress induces reduction in the ratio of Fv/Fm [13,14].…”

Section: Introductionmentioning

confidence: 99%

Roles of Si and SiNPs in Improving Thermotolerance of Wheat Photosynthetic Machinery via Upregulation of PsbH, PsbB and PsbD Genes Encoding PSII Core Proteins

et al. 2021

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Photosystem II is extremely susceptible to environmental alterations, particularly high temperatures. The maintenance of an efficient photosynthetic system under stress conditions is one of the main issues for plants to attain their required energy. Nowadays, searching for stress alleviators is the main goal for maintaining photosynthetic system productivity and, thereby, crop yield under global climate change. Potassium silicate (K2SiO3, 1.5 mM) and silicon dioxide nanoparticles (SiO2NPs, 1.66 mM) were used to mitigate the negative impacts of heat stress (45 °C, 5 h) on wheat (Triticum aestivum L.) cv. (Shandawelly) seedlings. The results showed that K2SiO3 and SiO2NPs diminished leaf rolling symptoms and electrolyte leakage (EL) of heat-stressed wheat leaves. Furthermore, the maximum quantum yield of photosystem II (Fv/Fm) and the performance index (PIabs), as well as the photosynthetic pigments and organic solutes including soluble sugars, sucrose, and proline accumulation, were increased in K2SiO3 and SiO2NPs stressed leaves. At the molecular level, RT-PCR analysis showed that K2SiO3 and SiO2NPs treatments stimulated the overexpression of PsbH, PsbB, and PsbD genes. Notably, this investigation indicated that K2SiO3 was more effective in improving wheat thermotolerance compared to SiO2NPs. The application of K2SiO3 and SiO2NPs may be one of the proposed approaches to improve crop growth and productivity to tolerate climatic change.

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“…High temperature is one of the abiotic stress factors, which greatly impact on crop yields and quality. In the North China Plain which has a typical temperature and monsoonal climate, agricultural production is often subjected to the frequency and intensity of heat waves (Li et al,2018;Suchul & Eltahir, 2018). Both high temperature and drought stress, two reasons for production and quality decline, have strong effects on the maize growth period, especially at the early stage (Caims et al, 2012).…”

Section: Functional Characterization Of a New Maize Heat Shock Transcmentioning

confidence: 99%

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Supplemental Information 5: The Uncropped Blot of Semi qRT-PCR Result of the ZmHsf01 Transcript in Different Over-Expres

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Background. The yield of maize crop is influenced seriously by heat waves. Plant heat shock transcription factors (Hsfs) play a key regulatory role in heat shock signal transduction pathway. Method. In this study, a new heat shock transcription factor gene, ZmHsf01 (accession number: MK888854) , was cloned from maize young leaves using homologous cloning method. The transcriptional level of ZmHsf01 were detected by qRT-PCR in different tissues or under heat shock, abscisic acid (ABA) and hydrogen peroxide (H 2 O 2) treatment. The transgenic yeast and Arabidopsis were used to study the gene function of ZmHsf01. Result. The coding sequence (CDS) of ZmHsf01 was 1176 bp and

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Combined impact of heat stress and phosphate deficiency on growth and photochemical activity of sheepgrass (Leymus chinensis)

Cited by 11 publications

References 32 publications

Functional characterization of maize heat shock transcription factor gene ZmHsf01 in thermotolerance

Functional characterization of maize heat shock transcription factor gene ZmHsf01 in thermotolerance

Roles of Si and SiNPs in Improving Thermotolerance of Wheat Photosynthetic Machinery via Upregulation of PsbH, PsbB and PsbD Genes Encoding PSII Core Proteins

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