Increased heat stress risk for maize in arid-based climates as affected by climate change: threats and solutions

Deihimfard, Reza; Rahimi‐Moghaddam, Sajjad; Azizi, Khosro; Haghighat, Masoud

doi:10.1007/s00484-022-02282-6

Cited by 5 publications

(2 citation statements)

References 35 publications

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“…Climate change is becoming more and more remarkable which has an obvious impact on crop yields all over the world, the global maize yield declines with a warming climate, particularly with extreme heat events. In order to adapt the extreme heat events, researcher suggested that different optimal solution should be considered to maintain maize production and reduce the risk of heat stress under the changing climate ( Deihimfard et al., 2022 ). There are many ways to deal with the threat of high temperature during the maize production.…”

Section: Discussionmentioning

confidence: 99%

Genes and pathways correlated with heat stress responses and heat tolerance in maize kernels

Chen,

Du,

Zhang

et al. 2023

Front. Plant Sci.

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Global warming leads to frequent extreme weather, especially the extreme heat events, which threating the safety of maize production. Here we selected a pair of maize inbred lines, PF5411-1 and LH150, with significant differences in heat tolerance at kernel development stage. The two maize inbred lines were treated with heat stress at kernel development stage. Compared with the control groups, transcriptomic analysis identified 770 common up- and down-regulated genes between PF5411-1 and LH150 under heat stress conditions, and 41 putative TFs were predicted. Based on the interaction term of the two-factorial design, we also identified 6,744 differentially regulated genes between LH150 and PF5411-1, 111 common up-regulated and 141 common down-regulated genes were overlapped with the differentially regulated genes, respectively. Combined with proteins and metabolites data, several key pathways including seven differentially regulated genes were highly correlated with the heat tolerance of maize kernels. The first is the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway ko04141: protein processing in endoplasmic reticulum, four small heat shock protein (sHSP) genes were enriched in this pathway, participating with the process of ER-associated degradation (ERAD). The second one is the myricetin biosynthesis pathway, a differentially regulated protein, flavonoid 3’,5’-hydroxylase [EC:1.14.14.81], catalyzed the synthesis of myricetin. The third one is the raffinose metabolic pathway, one differentially regulated gene encoded the raffinose synthase controlled the synthesis of raffinose, high level of raffinose enhances the heat tolerance of maize kernels. And the last one is the ethylene signaling pathway. Taken together, our work identifies many genes responded to heat stress in maize kernels, and finds out seven genes and four pathways highly correlated with heat tolerance of maize kernels.

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Section: Discussionmentioning

confidence: 99%

Genes and pathways correlated with heat stress responses and heat tolerance in maize kernels

Chen,

Du,

Zhang

et al. 2023

Front. Plant Sci.

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“…With global warming exacerbating and extreme incidences of high temperature, heat stress (HS) is getting more and more attention as it could pose a huge threat to global food security (Deihimfard et al, 2022; Ohama et al, 2017). As sessile organisms, most sensitive crops can not avoid HS, resulting in serious damages, including protein denaturation, cell damage, and accumulation of reactive oxygen species (ROS) (Guihur et al, 2022; Wu et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Genome‐wide characterization of homeodomain‐leucine zipper genes reveals RsHDZ17 enhances the heat tolerance in radish (Raphanus sativus L.)

Wang

et al. 2022

Physiologia Plantarum

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Homeodomain-leucine zipper (HD-Zip) transcription factors are involved in various biological processes of plant growth, development, and abiotic stress response.However, how they regulate heat stress (HS) response remains largely unclear in plants. In this study, a total of 83 RsHD-Zip genes were firstly identified from the genome of Raphanus sativus. RNA-Seq, RT-qPCR and promoter activity assays revealed that RsHDZ17 from HD-Zip Class I was highly expressed under heat, salt, and Cd stresses. RsHDZ17 is a nuclear protein with transcriptional activity at the C-terminus.Ectopic overexpression (OE) of RsHDZ17 in Arabidopsis thaliana enhanced the HS tolerance by improving the survival rate, photosynthesis capacity, and scavenging for reactive oxygen species (ROS). In addition, transient OE of RsHDZ17 in radish cotyledons impeded cell injury and augmented ROS scavenging under HS. Moreover, yeast one-hybrid, dual-luciferase assay, and electrophoretic mobility shift assay revealed that RsHDZ17 could bind to the promoter of HSFA1e. Collectively, these pieces of evidence demonstrate that RsHDZ17 could play a positive role in thermotolerance, partially through up-regulation of the expression of HSFA1e in plants. These results provide novel insights into the role of HD-Zips in radish and facilitate genetical engineering and development of heat-tolerant radish in breeding programs.

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Maize-Maize System

Ahmed,

Ahmad,

Abbas

et al. 2024

Cropping Systems Modeling Under Changing Climate

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Increased heat stress risk for maize in arid-based climates as affected by climate change: threats and solutions

Cited by 5 publications

References 35 publications

Genes and pathways correlated with heat stress responses and heat tolerance in maize kernels

Genes and pathways correlated with heat stress responses and heat tolerance in maize kernels

Genome‐wide characterization of homeodomain‐leucine zipper genes reveals RsHDZ17 enhances the heat tolerance in radish (Raphanus sativus L.)

Maize-Maize System

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