A harpin-induced ethylene-responsive factor regulates plant growth and responses to biotic and abiotic stresses

2010 ◽  
Vol 402 (2) ◽  
pp. 414-420 ◽  
Author(s):  
Huey-wen Chuang ◽  
Anita Harnrak ◽  
Yin-Chung Chen ◽  
Chi-Mo Hsu
Keyword(s):  
Plant Growth ◽  
Abiotic Stresses ◽  
Biotic And Abiotic Stresses ◽  
Ethylene Responsive Factor

Brassinosteroids roles and applications: an up-date

Biologia ◽  
2015 ◽  
Vol 70 (6) ◽  
Author(s):  
Yamilet Coll ◽  
Francisco Coll ◽  
Asunción Amorós ◽  
Merardo Pujol
Keyword(s):  
Plant Growth ◽  
Agricultural Production ◽  
Abiotic Stresses ◽  
Growth And Development ◽  
Plant Architecture ◽  
Major Effect ◽  
Genetic Determinants ◽  
Plant Growth And Development ◽  
Biotic And Abiotic Stresses ◽  
Wide Range

AbstractBrassinosteroids are plant steroidal compounds involved in many functions related with plant development, metabolism, signalling and defense against a wide range of biotic and abiotic stresses. Plant architecture, which has a major effect on crop yield, is strongly influenced by brassinosteroids action. Brassinosteroids are recognized as key regulators of plant growth and development involved in a broad spectrum of processes at the molecular, cellular, and physiological levels. These roles suggest that many of the constraints of present agricultural production might be alleviated by manipulation of genetic determinants dealing with brassinosteroids, as well as by its exogenous application. Brassinosteroids are natural, nontoxic, non-genotoxic, biosafe, and eco-friendly, and can therefore be used in agriculture and horticulture to improve the growth, yields, quality, and tolerance of various plants to biotic and abiotic stresses. The present paper comprehensively reviews the latest results in the field of brassinosteroids and envisages future impacts in agriculture.

scholarly journals Seed-Biopriming of Durum Wheat with Diazotrophic Plant Browth Promoting Bacteria (PGPB) Enhanced Tolerance to Fusarium Head Blight (FHB) and Salinity Stress

2019 ◽  
Author(s):  
Adel Hadj Brahim ◽  
Mouna Jlidi ◽  
Lobna Daoud ◽  
Manel Ben-Ali ◽  
Asmahen Akremi ◽  
...  
Keyword(s):  
Plant Growth ◽  
Durum Wheat ◽  
Abiotic Stresses ◽  
Growth Promotion ◽  
Head Blight ◽  
Biotic And Abiotic Stresses ◽  
Plant Growth Promoting ◽  
Seed Biopriming

Abstract Background The use of bioinoculants based on plant growth-promoting bacteria (PGPB) to promote plant growth under biotic and abiotic stresses is in full expansion. To our knowledge much work has not been, thus far, done on seed-biopriming of durum wheat for tolerance to biotic and abiotic stresses. In the present work, we report detailed account of the effectiveness a potent bacterial strain with proven plant growth-promoting ability and antimicrobial activity. The isolate was selected following screening of several bacterial strains isolated from halophytes that grow in a coastal saline soil in Tunisia for their role in enhancing durum wheat tolerance to both salinity stress and head blight disease.Results Accordingly, Bacillus strains MA9, MA14, MA17 and MA19 were found to have PGPB characteristics as they produced indole-3-acetic acid, siderophores and lytic enzymes, fixed free atmospheric nitrogen, and solubilized inorganic phosphate, in vitro . The in vivo study that involved in planta inoculation assays under control (25 mM NaCl) and stress (125 mM NaCl) conditions indicated that all PGPB strains significantly ( P < 0.05) increased the total plant length, dry weight, root area, seed weight, nitrogen, protein and total mineral content. On the other hand, strain MA17 reduced Fusarium Head Blight (FHB) disease incidence in wheat explants by 64.5%, showing that the strain has antifungal activity as was also displayed by in vitro inhibition study.Conclusions Both in vitro and in vivo studies showed that MA9, MA14 MA9, MA14, MA17 and MA19 strains were able to play the PGPB role. Yet, biopriming with Bacillus strain MA17 offered the highest bioprotection against FHB, plant growth promotion, and salinity tolerance. Hence, the MA17 strain should further be evaluated under field condition and formulated for commercial production. Besides, the strain could further be evaluated for its potential role in bioprotection and growth promotion of other crop plants. We believe, the strain has potential to significantly contribute to wheat production in the arid and semi-arid region, especially the salt affected Middle Eastern Region, besides its potential role in improving wheat production under biotic and abiotic stresses in other parts of the world.

scholarly journals Genome-wide analysis of the WRKY gene family in the cucumber genome and transcriptome-wide identification of WRKY transcription factors that respond to biotic and abiotic stresses

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Chunhua Chen ◽  
Xueqian Chen ◽  
Jing Han ◽  
Wenli Lu ◽  
Zhonghai Ren
Keyword(s):  
Transcription Factors ◽  
Plant Growth ◽  
Biotic Stress ◽  
Abiotic Stresses ◽  
Expression Patterns ◽  
Wrky Transcription Factors ◽  
Biotic And Abiotic Stresses ◽  
Abiotic And Biotic Stresses ◽  
Biotic Stresses ◽  
Cucumber Genome

Abstract Background Cucumber (Cucumis sativus L.) is an economically important vegetable crop species. However, it is susceptible to various abiotic and biotic stresses. WRKY transcription factors play important roles in plant growth and development, particularly in the plant response to biotic and abiotic stresses. However, little is known about the expression pattern of WRKY genes under different stresses in cucumber. Results In the present study, an analysis of the new assembly of the cucumber genome (v3.0) allowed the identification of 61 cucumber WRKY genes. Phylogenetic and synteny analyses were performed using related species to investigate the evolution of the cucumber WRKY genes. The 61 CsWRKYs were classified into three main groups, within which the gene structure and motif compositions were conserved. Tissue expression profiles of the WRKY genes demonstrated that 24 CsWRKY genes showed constitutive expression (FPKM > 1 in all samples), and some WRKY genes showed organ-specific expression, suggesting that these WRKYs might be important for plant growth and organ development in cucumber. Importantly, analysis of the CsWRKY gene expression patterns revealed that five CsWRKY genes strongly responded to both salt and heat stresses, 12 genes were observed to be expressed in response to infection from downy mildew and powdery mildew, and three CsWRKY genes simultaneously responded to all treatments analysed. Some CsWRKY genes were observed to be induced/repressed at different times after abiotic or biotic stress treatment, demonstrating that cucumber WRKY genes might play different roles during different stress responses and that their expression patterns vary in response to stresses. Conclusions Sixty-one WRKY genes were identified in cucumber, and insight into their classification, evolution, and expression patterns was gained in this study. Responses to different abiotic and biotic stresses in cucumber were also investigated. Our results provide a better understanding of the function of CsWRKY genes in improving abiotic and biotic stress resistance in cucumber.

scholarly journals Draft Genome Sequence of the Root-Colonizing Fungus Trichoderma harzianum B97

2017 ◽  
Vol 5 (13) ◽  
Author(s):  
Stéphane Compant ◽  
Jonathan Gerbore ◽  
Livio Antonielli ◽  
Aline Brutel ◽  
Monika Schmoll
Keyword(s):  
Plant Growth ◽  
Genome Sequence ◽  
Trichoderma Harzianum ◽  
Abiotic Stresses ◽  
Agricultural Soil ◽  
Draft Genome ◽  
Draft Genome Sequence ◽  
Biotic And Abiotic Stresses ◽  
Plant Growth Promoting ◽  
Growth Promoting

ABSTRACT Trichoderma harzianum is one of the most beneficial microorganisms applied on diverse crops against biotic and abiotic stresses and acts also as a plant growth-promoting fungus. Here, we report the genome of T. harzianum B97, originating from a French agricultural soil and used as a biofertilizer that can tolerate abiotic stresses.

scholarly journals Seed-Biopriming of Durum Wheat with Diazotrophic Plant Growth Promoting Bacteria (PGPB) Enhanced Tolerance to Fusarium Head Blight (FHB) and Salinity Stress

2019 ◽  
Author(s):  
Adel Hadj Brahim ◽  
Mouna Jlidi ◽  
Lobna Daoud ◽  
Manel Ben-Ali ◽  
Asmahen Akremi ◽  
...  
Keyword(s):  
Plant Growth ◽  
Durum Wheat ◽  
Abiotic Stresses ◽  
Growth Promotion ◽  
Plant Growth Promoting Bacteria ◽  
Head Blight ◽  
Biotic And Abiotic Stresses ◽  
Plant Growth Promoting ◽  
Growth Promoting

Abstract Background There is growing interest in the use of bioinoculants based on plant growth promoting bacteria (PGPB) to promote plant growth under biotic and abiotic stresses. To our knowledge much work has not been, thus far, done on seedbiopriming of durum wheat for tolerance to biotic and abiotic stresses. In the present work, we report detailed account of the effectiveness a potent bacterial strain with proven plant growth-promoting ability and antimicrobial activity. The isolate was selected following screening of several bacterial strains isolated from halophytes that grow in a coastal saline soil in Tunisia for their role in enhancing durum wheat tolerance to both salinity stress and head blight disease. Results Accordingly, Bacillus strains MA9, MA14, MA17 and MA19 were found to have PGPB characteristics as they produced indole-3-acetic acid, siderophores and lytic enzymes, fixed free atmospheric nitrogen, and solubilized inorganic phosphate, in vitro. The in vivo study that involved in planta inoculation assays under control (25 mM NaCl) and stress (125 mM NaCl) conditions indicated that all PGPB strains significantly (P < 0.05) increased the total plant length, dry weight, root area, seed weight, nitrogen, protein and total mineral content. On the other hand, strain MA17 reduced Fusarium Head Blight (FHB) disease incidence in wheat explants by 64.5%, showing that the strain has antifungal activity as was also displayed by in vitro inhibition study. Conclusions Both in vitro and in vivo studies showed that MA9, MA14 MA9, MA14, MA17 and MA19 strains were able to play the PGPB role. Yet, biopriming with Bacillus strain MA17 offered the highest bioprotection against FHB, plant growth promotion, and salinity tolerance. Hence, the MA17 strain should further be evaluated under field condition and formulated for commercial production. Besides, the strain could further be evaluated for its potential role in bioprotection and growth promotion of other crop plants. We believe, the strain has potential to significantly contribute to wheat production in the arid and semi-arid region, especially the salt affected Middle Eastern Region, besides its potential role in improving wheat production under biotic and abiotic stresses in other parts of the world.

scholarly journals Genome-wide analysis of the WRKY gene family in the cucumber genome and transcriptome‑wide identification of WRKY transcription factors that respond to biotic and abiotic stresses

2020 ◽  
Author(s):  
Chunhua Chen ◽  
Xueqian Chen ◽  
Jing Han ◽  
Wenli Lu ◽  
Zhonghai Ren
Keyword(s):  
Transcription Factors ◽  
Plant Growth ◽  
Biotic Stress ◽  
Abiotic Stresses ◽  
Expression Patterns ◽  
Wrky Transcription Factors ◽  
Biotic And Abiotic Stresses ◽  
Abiotic And Biotic Stresses ◽  
Biotic Stresses ◽  
Cucumber Genome

Abstract Background: Cucumber ( Cucumis sativus L.) is an economically important vegetable crop species. However, it is susceptible to various abiotic and biotic stresses. WRKY transcription factors play important roles in plant growth and development, particularly in the plant response to biotic and abiotic stresses. However, little is known about the expression pattern of WRKY genes under different stresses in cucumber. Results: In the present study, an analysis of the new assembly of the cucumber genome (v3.0) allowed the identification of 61 cucumber WRKY genes. Phylogenetic and synteny analyses were performed using related species to investigate the evolution of the cucumber WRKY genes. The 61 CsWRKYs were classified into three main groups, within which the gene structure and motif compositions were conserved. Tissue expression profiles of the WRKY genes demonstrated that 24 CsWRKY genes showed constitutive expression (FPKM > 1 in all samples), and some WRKY genes showed organ-specific expression, suggesting that these WRKYs might be important for plant growth and organ development in cucumber. Importantly, analysis of the CsWRKY gene expression patterns revealed that 7 CsWRKY genes strongly responded to both salt and heat stresses, 12 genes were observed to be expressed in response to infection from downy mildew and powdery mildew, and three CsWRKY genes simultaneously responded to all treatments analysed. Some CsWRKY genes were observed to be induced/repressed at different times after abiotic or biotic stress treatment, demonstrating that cucumber WRKY genes might play different roles during different stress responses and that their expression patterns vary in response to stresses. Conclusions: Sixty-one WRKY genes were identified in cucumber, and insight into their classification, evolution, and expression patterns was gained in this study. Responses to different abiotic and biotic stresses in cucumber were also investigated. Our results provide a better understanding of the function of Cs WRKY genes in improving abiotic and biotic stress resistance in cucumber.

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