Gibberellin-signaling pathways in plants

Чеботар, Г. О.; Chebotar, S. V.

doi:10.3103/s0095452711040037

Cited by 10 publications

(5 citation statements)

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“…Therefore, the effect of auxins, such as indole-3-acetic acid (IAA), is thought to be at least in part mediated by its effect on GA metabolism [66]. However, under adverse environmental conditions, proteins which belong to a subfamily of the GRAS protein can accumulate in the cell and function as repressors of GA signaling playing a prominent role in the auxin-gibberellin interplay through the maintenance of reduced levels of gibberellic acids [67]. …”

Section: Discussionmentioning

confidence: 99%

Transcription profile of soybean-root-knot nematode interaction reveals a key role of phythormones in the resistance reaction

et al. 2013

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BackgroundRoot-knot nematodes (RKN– Meloidogyne genus) present extensive challenges to soybean crop. The soybean line (PI 595099) is known to be resistant against specific strains and races of nematode species, thus its differential gene expression analysis can lead to a comprehensive gene expression profiling in the incompatible soybean-RKN interaction. Even though many disease resistance genes have been studied, little has been reported about phytohormone crosstalk on modulation of ROS signaling during soybean-RKN interaction.ResultsUsing 454 technology to explore the common aspects of resistance reaction during both parasitism and resistance phases it was verified that hormone, carbohydrate metabolism and stress related genes were consistently expressed at high levels in infected roots as compared to mock control. Most noteworthy genes include those encoding glycosyltransferases, peroxidases, auxin-responsive proteins and gibberellin-regulated genes. Our data analysis suggests the key role of glycosyltransferases, auxins and components of gibberellin signal transduction, biosynthesis and deactivation pathways in the resistance reaction and their participation in jasmonate signaling and redox homeostasis in mediating aspects of plant growth and responses to biotic stress.ConclusionsBased on this study we suggest a reasonable model regarding to the complex mechanisms of crosstalk between plant hormones, mainly gibberellins and auxins, which can be crucial to modulate the levels of ROS in the resistance reaction to nematode invasion. The model also includes recent findings concerning to the participation of DELLA-like proteins and ROS signaling controlling plant immune or stress responses. Furthermore, this study provides a dataset of potential candidate genes involved in both nematode parasitism and resistance, which can be tested further for their role in this biological process using functional genomics approaches.

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Section: Discussionmentioning

confidence: 99%

Transcription profile of soybean-root-knot nematode interaction reveals a key role of phythormones in the resistance reaction

et al. 2013

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“…The identification of sorghum homologous GA genes was performed in silico following a procedure similar to the one described by Mantilla Perez et al (2014) for BR genes. In summary, previously reported GA protein sequences from model species (Yamaguchi, 2008; Chebotar and Chebotar, 2010; Hedden and Thomas, 2012; Daviere and Achard, 2013) were obtained from the National Center for Biotechnology Information databases and BLASTed against the sorghum genome sequence from phytozome V1.4 (Paterson et al, 2009) using TBLASTN. Their common domains were predicted using Pfam (Punta et al, 2012).…”

Section: Methodsmentioning

confidence: 99%

Genome‐Wide Association Study for Nine Plant Architecture Traits in Sorghum

Zhao

Perez

et al. 2016

The Plant Genome

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Sorghum [Sorghum bicolor (L) Moench], an important grain and forage crop, is receiving significant attention as a lignocellulosic feedstock because of its water-use efficiency and high biomass yield potential. Because of the advancement of genotyping and sequencing technologies, genome-wide association study (GWAS) has become a routinely used method to investigate the genetic mechanisms underlying natural phenotypic variation. In this study, we performed a GWAS for nine grain and biomassrelated plant architecture traits to determine their overall genetic architecture and the specific association of allelic variants in gibberellin (GA) biosynthesis and signaling genes with these phenotypes. A total of 101 single-nucleotide polymorphism (SNP) representative regions were associated with at least one of the nine traits, and two of the significant markers correspond to GA candidate genes, GA2ox5 (Sb09 g028360) and KS3 (Sb06 g028210), affecting plant height and seed number, respectively. The resolution of a previously reported quantitative trait loci (QTL) for leaf angle on chromosome 7 was increased to a 1.67 Mb region containing seven candidate genes with good prospects for further investigation. This study provides new knowledge of the association of GA genes with plant architecture traits and the genomic regions controlling variation in leaf angle, stem circumference, internode number, tiller number, seed number, panicle exsertion, and panicle length. The GA gene affecting seed number variation (KS3, Sb06 g028210) and the genomic region on chromosome 7 associated with variation in leaf angle are also important outcomes of this study and represent the foundation of future validation studies needed to apply this knowledge in breeding programs. The increasing interest in biomass production for biofuel use is resulting in a paradigm shift in breeding for plant architecture parameters. The genetic manipulation of these traits can positively affect biomass production (Yuan et al., 2008) as suggested by the high correlations between biomass yield and plant height (Lubberstedt et al., 1997;Salas Fernandez et al., 2009) or leaf angle (Morinaka et al., 2006). Sorghum, the fifth most widely grown cereal crop in the world, is receiving significant attention as one of the most productive annual species for bioenergy production (Rooney et al., 2007) in addition to its well-known value as a grain and forage crop. Therefore, understanding the genetic control Core Ideas:• The 101 SNPs were associated with at least one of nine plant architecture traits• KS3 gene was associated with variation in seed number• GA2ox5 gene included in a significant region on chromosome 9 controlling plant height• Novel genomic regions were associated with stem circumference and internode number• Novel genomic regions were associated with tiller number, panicle exsertion, and length of plant architecture traits and applying that knowledge in sorghum breeding programs might be instrumental to develop improved germplasm for the incipient lignocell...

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“…В последние годы интерес к использованию достижений микробиологии в сельском хозяйстве неизмеримо возрос, расширены представления о роли микроорганизмов в жизни растений, сформулированы приоритетные практические задачи по дополнительному вовлечению азота и фосфора для растений [1,2,3,4,5,6,7].…”

Section: история вопросаunclassified

Influence of Organomineral Fertilizers and Biological Products on the Content of Nutrients in the Basic and Side Products and the Productivity of Spring Wheat in the Forest-Steppe Zone of the Volga Region

Zakharov¹

2022

Izvestiya of SSC RAS. Agricultural Sciences

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The paper presents the comparative effectiveness of mineral and organic fertilizers when combined with biological product and their influence on the productivity of spring wheat. Studies have shown that the combination of manure with pre-sowing treatment of seeds with biological preparations made it possible in this experiment to form a high yield of spring wheat, which varied within 3.48-3.99 t/ha, which is higher than the absolute norm by 0.32-0.83 t / ha.

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Gibberellin-signaling pathways in plants

Cited by 10 publications

References 64 publications

Transcription profile of soybean-root-knot nematode interaction reveals a key role of phythormones in the resistance reaction

Transcription profile of soybean-root-knot nematode interaction reveals a key role of phythormones in the resistance reaction

Genome‐Wide Association Study for Nine Plant Architecture Traits in Sorghum

Influence of Organomineral Fertilizers and Biological Products on the Content of Nutrients in the Basic and Side Products and the Productivity of Spring Wheat in the Forest-Steppe Zone of the Volga Region

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