Differential expression of gibberellin 20 oxidase gene induced by abiotic stresses in Zoysiagrass (Zoysia japonica)

Dai, Xiaomei; Cheng, Xiao; Li, Yunxia; Tang, Wei; Han, Liebao

doi:10.2478/s11756-012-0048-3

Cited by 9 publications

(5 citation statements)

References 42 publications

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“…Other stress response genes were up-regulated in developing fibers of the im mutant (Figure 4 B). These include the following genes: alternative oxidase 1 (AOX 1, Ghi.3408.1.A1_at) known as a target and regulator of stress responses [ 19 ], Toll/Interleukin-1 receptor nucleotide-binding sites Leu-rich repeat ( TIR-NBS-LRR , GhiAffx.41878.1.S1_at) involved in biotic and abiotic stress response [ 20 ], a GA 20 oxidase (Ghi.6164.1.A1_at) induced by abiotic stress [ 21 ], allyl alcohol dehydrogenase (Ghi.8523.1.A1_at), cellulose synthase-like protein ( CslE , Ghi.3562.1.A1_at), and α-expansin 8 (Ghi.2039.1.S1_x_at).…”

Section: Resultsmentioning

confidence: 99%

Functional analyses of cotton (Gossypium hirsutum L.) immature fiber (im) mutant infer that fiber cell wall development is associated with stress responses

et al. 2013

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BackgroundCotton fiber maturity is an important factor for determining the commercial value of cotton. How fiber cell wall development affects fiber maturity is not well understood. A comparison of fiber cross-sections showed that an immature fiber (im) mutant had lower fiber maturity than its near isogenic wild type, Texas marker-1 (TM-1). The availability of the im mutant and TM-1 provides a unique way to determine molecular mechanisms regulating cotton fiber maturity.ResultsTranscriptome analysis showed that the differentially expressed genes (DEGs) in the im mutant fibers grown under normal stress conditions were similar to those in wild type cotton fibers grown under severe stress conditions. The majority of these DEGs in the im mutant were related to stress responses and cellular respiration. Stress is known to reduce the activity of a classical respiration pathway responsible for energy production and reactive oxygen species (ROS) accumulation. Both energy productions and ROS levels in the im mutant fibers are expected to be reduced if the im mutant is associated with stress responses. In accord with the prediction, the transcriptome profiles of the im mutant showed the same alteration of transcriptional regulation that happened in energy deprived plants in which expressions of genes associated with cell growth processes were reduced whereas expressions of genes associated with recycling and transporting processes were elevated. We confirmed that ROS production in developing fibers from the im mutant was lower than that from the wild type. The lower production of ROS in the im mutant fibers might result from the elevated levels of alternative respiration induced by stress.ConclusionThe low degree of fiber cell wall thickness of the im mutant fibers is associated with deregulation of the genes involved in stress responses and cellular respiration. The reduction of ROS levels and up-regulation of the genes involved in alternative respirations suggest that energy deprivation may occur in the im mutant fibers.

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Section: Resultsmentioning

confidence: 99%

Functional analyses of cotton (Gossypium hirsutum L.) immature fiber (im) mutant infer that fiber cell wall development is associated with stress responses

et al. 2013

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“…ABA is an important plant stress hormone that is produced under drought conditions [ 72 ], making this sequence an interesting target for future studies. Another interesting target of included a gibberellin oxidase (cassava4.1_011871 m | PACid: 17968068) targeted by sRNA001.00535298_x24_x1, which was found to be overexpressed in MTAI16 plants subject to drought stress (Supplementary file 1) and was also differentially regulated under stress conditions in Zoysia japonica [ 73 ]. Also included among targets of nonconserved miRNAs was a phenylalanine ammonia-lyase (PAL) targeted by sRNA001.00341055_x20_x1.…”

Section: Discussionmentioning

confidence: 99%

Identification of Cassava MicroRNAs under Abiotic Stress

Ballén‐Taborda

Plata

Ayling

et al. 2013

International Journal of Genomics

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The study of microRNAs (miRNAs) in plants has gained significant attention in recent years due to their regulatory role during development and in response to biotic and abiotic stresses. Although cassava (Manihot esculenta Crantz) is tolerant to drought and other adverse conditions, most cassava miRNAs have been predicted using bioinformatics alone or through sequencing of plants challenged by biotic stress. Here, we use high-throughput sequencing and different bioinformatics methods to identify potential cassava miRNAs expressed in different tissues subject to heat and drought conditions. We identified 60 miRNAs conserved in other plant species and 821 potential cassava-specific miRNAs. We also predicted 134 and 1002 potential target genes for these two sets of sequences. Using real time PCR, we verified the condition-specific expression of 5 cassava small RNAs relative to a non-stress control. We also found, using publicly available expression data, a significantly lower expression of the predicted target genes of conserved and nonconserved miRNAs under drought stress compared to other cassava genes. Gene Ontology enrichment analysis along with condition specific expression of predicted miRNA targets, allowed us to identify several interesting miRNAs which may play a role in stress-induced posttranscriptional regulation in cassava and other plants.

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“…During salinity and other abiotic stresses, SA can modulate plant stress responses through signalling crosstalk with other phytohormones (Asensi-Fabado and Munné-Bosch 2011; Khan et al 2012bKhan et al , 2014 and alter phytohormone biosynthesis (Pieterse et al 2009). Under normal, as well as salt stress conditions, SA can interact in a diverse manner with phytohormones, including namely auxin (Iglesias et al 2011;Fahad and Bano 2012;Esan et al 2017), gibberellins (Alonso-Ramírez et al 2009Hamayun et al 2010;Dai et al 2012), abscisic acid (Yasuda et al 2008;Szepesi et al 2009;Miura et al 2011;Asensi-Fabado and Munné-Bosch 2011), ethylene (Khan et al 2014), and brassinosteroids (Divi et al 2010;Hayat et al 2012) (Table 1.1). These interactions (either synergistic or antagonistic) play a crucial roles in plant defence signalling pathways (Bali et al 2017).…”

Section: Interaction With Other Phytohormonesmentioning

confidence: 99%

Salicylic Acid-Mediated Salt Stress Tolerance in Plants

Hoque

Sohag

Burritt

et al. 2020

Plant Phenolics in Sustainable Agriculture

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Salt stress is one of the most important abiotic stresses threatening agricultural production worldwide. Salt stress affects vital physiological, biochemical and molecular processes in crop plants, leading to reduced plant growth and yields or even plant death. To cope with salt stress, plants have evolved many adaptive mechanisms, including the development of salt-associated signal transduction cascades that contain a wide range of second messengers. During stress, regulatory molecules, including plant hormones, play key roles in controlling developmental processes and signalling networks, and these molecules have been recognized as having the potential to be used to develop stress-tolerant plants. Salicylic acid (SA) is a phenolic compound involved in the regulation of plant growth, development and defence responses. SA is a critical signalling molecule that is known to participate in the responses of plants to salinity stress, through extensive signalling crosstalk with other hormones that results in physiological and biochemical responses in plants and changes in gene expression. SA is an important regulator of Na + exclusion and sequestration, through the modulation of sodium and potassium transporters, and is associated with the control of photosynthesis and nutrient metabolism, proline and glycinebetaine synthesis,

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Differential expression of gibberellin 20 oxidase gene induced by abiotic stresses in Zoysiagrass (Zoysia japonica)

Cited by 9 publications

References 42 publications

Functional analyses of cotton (Gossypium hirsutum L.) immature fiber (im) mutant infer that fiber cell wall development is associated with stress responses

Functional analyses of cotton (Gossypium hirsutum L.) immature fiber (im) mutant infer that fiber cell wall development is associated with stress responses

Identification of Cassava MicroRNAs under Abiotic Stress

Salicylic Acid-Mediated Salt Stress Tolerance in Plants

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