MAPKKKs in Plants: Multidimensional Regulators of Plant Growth and Stress Responses

Xie, Chen; Liu, Yang; Gai, Yingping

doi:10.3390/ijms24044117

Cited by 11 publications

(8 citation statements)

References 88 publications

(110 reference statements)

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“…Finally, HSP101, associated with plants thermotolerance [59], and MAPKKK17, connected to plant growth and response to biotic and abiotic stresses [60], were selected for expression analysis. Although our studies did not identify significant differences in transcript accumulation in both production modes and cultivars, mitogen-activated protein kinases (MAPK) were already identified as involved in defense mechanisms.…”

Section: Discussionmentioning

confidence: 99%

Organic vs. Integrated-Production Agriculture Farming: Which Grapevine Stress-Responsive Genes Are Affected by the Application of Resistance Inducers and Elicitors?

Monteiro,

Patanita,

Félix

et al. 2024

Agronomy

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With the rising prominence of organic farming systems in European Union countries, motivated by agricultural policies, there is pressure for effective disease management strategies. To address this challenge, the use of plant resistance inducers (PRIs) and elicitors has emerged as a promising approach. In this study, we compared the impact of integrated production with organic agriculture farming practices, specifically applying PRIs and elicitors in the latter, on the expression levels of stress-responsive genes in two grapevine cultivars, ‘Alicante Bouschet’ and ‘Trincadeira’. Our findings revealed that the organic farming system led to upregulation of eight of the 12 studied genes in at least one cultivar, indicating a significant influence of production mode. The upregulated genes were associated with plant stress-responsive genes (PR1, PR2, PR4, and TLP9), sugar metabolism (HT5), phenylpropanoids (STS1), enzymes related to jasmonic acid synthesis and response to biotic stresses, respectively (LOX, PER42). Also, the ‘Alicante Bouschet’ cultivar consistently displayed significantly higher levels of transcript accumulation on most of the stress-related genes compared to the ‘Trincadeira’ cultivar in both production modes. Our study provides valuable insights into the effectiveness of PRIs and elicitors in increasing plant expression levels of stress-responsive genes, leading to greater resilience to pathogen attacks and emphasizing their position in organic agriculture.

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Section: Discussionmentioning

confidence: 99%

Organic vs. Integrated-Production Agriculture Farming: Which Grapevine Stress-Responsive Genes Are Affected by the Application of Resistance Inducers and Elicitors?

Monteiro,

Patanita,

Félix

et al. 2024

Agronomy

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show abstract

“…In addition, the plant’s own antioxidant defenses during oxidative stress are also regulated by a number of protein kinases and transcription factors [ 33 ]. Protein kinases, such as MAPK, are key regulators that modulate the antioxidant defenses and response to stress [ 34 , 35 ]. Oxidative stress induces phosphorylation of MAPK by H 2 O 2 , which then participates in a signaling cascade that regulates the expression of downstream genes [ 36 ].…”

Section: Discussionmentioning

confidence: 99%

Transcriptome Analysis of Potato Leaves under Oxidative Stress

Liu,

Tang,

Zhang

et al. 2024

IJMS

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Potato (Solanum tuberosum L.) is a major global food crop, and oxidative stress can significantly impact its growth. Previous studies have shown that its resistance to oxidative stress is mainly related to transcription factors, post-translational modifications, and antioxidant enzymes in vivo, but the specific molecular mechanisms remain unclear. In this study, we analyzed the transcriptome data from potato leaves treated with H2O2 and Methyl viologen (MV), and a control group, for 12 h. We enriched 8334 (CK vs. H2O2) and 4445 (CK vs. MV) differentially expressed genes (DEGs), respectively, and randomly selected 15 DEGs to verify the sequencing data by qRT-PCR. Gene ontology (GO) enrichment analysis showed that the DEGs were mainly concentrated in cellular components and related to molecular function, and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis indicated that most of the DEGs were related to metabolic pathways, plant hormone signal transduction, MAPK-signaling pathway, and plant–pathogen interactions. In addition, several candidate transcription factors, mainly including MYB, WRKY, and genes associated with Ca2+-mediated signal transduction, were also found to be differentially expressed. Among them, the plant hormone genes Soltu.DM.03G022780 and Soltu.DM.06G019360, the CNGC gene Soltu.DM.06G006320, the MYB transcription factors Soltu.DM.06G004450 and Soltu.DM.09G002130, and the WRKY transcription factor Soltu.DM.06G020440 were noticeably highly expressed, which indicates that these are likely to be the key genes in the regulation of oxidative stress tolerance. Overall, these findings lay the foundation for further studies on the molecular mechanisms of potato leaves in response to oxidative stress.

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“…The first MAP3K gene to be isolated in plants was NICOTIANA TABACUM PROTEIN KINASE 1 ( NtNPK1 ). NPK1 has been studied for its role in cell growth and division as a homolog of STE11 and BCK1 , which are MAP3Ks of Saccharomyces cerevisiae and Saccharomyces pombe that function as temperature‐dependent regulators of cell lysis (Banno et al, 1993; Xie et al, 2023). Later, Arabidopsis NPK1‐related protein kinase (ANP) 1/2/3, which are part of the MAP3K family, were identified as homologs of NPK1 (Nishihama et al, 1997).…”

Section: Identification Of Map3k Proteins In Plantsmentioning

confidence: 99%

Modulation of phosphorylation status of MAP3 kinases under abiotic stress responses

Jeong,

Lim,

Kim

et al. 2024

Physiologia Plantarum

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Plants must face various environmental stresses that they cannot avoid, and they have developed numerous mechanisms to survive these challenges. Phosphate‐mediated signal transduction is a common method for regulating gene expression and protein activity in response to stresses. Phosphate groups can be transferred to other proteins by proteins called kinases. MAP3Ks are the largest kinase family in plants, and they comprise various group and individual pathways collectively known as MAPK cascades. When plants encounter environmental stresses, several MAP3Ks act as positive or negative regulators by phosphorylating downstream proteins within the MAPK cascade, as well as transcription factors, cytoskeletal proteins, enzymes, and kinases, through their kinase activity. In addition, other upstream kinases and phosphatases regulate MAP3Ks by adding or removing phosphate groups. Various MAP3Ks have been isolated in many plant species, and evidence suggests that they function as post‐translational modulators under various abiotic stresses, including ABA responses as well as salinity, osmotic, drought, oxidative, cold, and heat stress. This review focuses on how plant MAP3Ks affect various abiotic stresses as regulators and substrates through post‐translational phosphorylation.

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MAPKKKs in Plants: Multidimensional Regulators of Plant Growth and Stress Responses

Cited by 11 publications

References 88 publications

Organic vs. Integrated-Production Agriculture Farming: Which Grapevine Stress-Responsive Genes Are Affected by the Application of Resistance Inducers and Elicitors?

Organic vs. Integrated-Production Agriculture Farming: Which Grapevine Stress-Responsive Genes Are Affected by the Application of Resistance Inducers and Elicitors?

Transcriptome Analysis of Potato Leaves under Oxidative Stress

Modulation of phosphorylation status of MAP3 kinases under abiotic stress responses

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