Analysis of the stress-inducible transcription factor SsNAC23 in sugarcane plants

Ditt, Renata Fava; Gentile, Agustina; Tavares, Rafael Garcia; Camargo, Sandra R.; Fernández, Jorge Hernández; Silva, Márcio José da; Menossi, Marcelo

doi:10.1590/s0103-90162011000400010

Cited by 16 publications

(10 citation statements)

References 46 publications

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“…One of the targets for this miRNA is a protein containing a NAC domain. Proteins from this family are known to be induced by diverse abiotic factors (Ditt et al 2011; Hegedus et al 2003; Sun et al 2011). Although we found a high variability in the expression of the target gene in the field-grown plants, the ssp-miR160-seq 1 and target gene expression profiles indicated that LT plants repress and have lower levels of the target gene, while the opposite profile was observed in HT plants.…”

Section: Discussionmentioning

confidence: 99%

Effects of drought on the microtranscriptome of field-grown sugarcane plants

Gentile

Ferreira

Mattos

et al. 2012

Planta

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Sugarcane (Saccharum spp.) is the most promising crop for renewable energy. Among the diverse stresses that affect plant productivity, drought stress frequently causes losses in sugarcane fields. Although several studies have addressed plant responses to drought using controlled environments, plant responses under field conditions are largely unknown. Recently, microRNA (miRNA)-mediated post-transcriptional regulation has been described as an important and decisive component in vegetal development and stress resistance modulation. The role of miRNAs in sugarcane responses to drought under field conditions is currently not known. Two sugarcane cultivars differing in drought tolerance were grown in the field with and without irrigation (rainfed) for 7 months. By using small RNA deep sequencing, we were able to identify 18 miRNA families comprising 30 mature miRNA sequences. Among these families, we found 13 mature miRNAs that were differentially expressed in drought-stressed plants. Seven miRNAs were differentially expressed in both cultivars. The target genes for many of the differentially expressed mature miRNAs were predicted, and some of them were validated by quantitative reverse transcription PCR. Among the targets, we found transcription factors, transporters, proteins associated with senescence, and proteins involved with flower development. All of these data increase our understanding of the role of miRNAs in the complex regulation of drought stress in field-grown sugarcane, providing valuable tools to develop new sugarcane cultivars tolerant to drought stress.Electronic supplementary materialThe online version of this article (doi:10.1007/s00425-012-1795-7) contains supplementary material, which is available to authorized users.

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Section: Discussionmentioning

confidence: 99%

Effects of drought on the microtranscriptome of field-grown sugarcane plants

Gentile

Ferreira

Mattos

et al. 2012

Planta

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“…For example, overexpression of NTL1 and NTL11 genes were observed after heat stress, while NTL4 and NTL7 were exhibited specifically by low temperature in Arabidopsis [62]. In sugarcane, SsNAC23 expression was induce in response to low temperature stress [66]. ANAC019, member of NAC TFs, has been observed to enhance the ability of Arabidopsis to cold tolerance by inducing the expression of cold responsive marker gene COR47 [55].…”

Section: Function and Expression Pattern Of Nac Tfs Under Abiotic Strmentioning

confidence: 99%

Transcription Factors in Plant Stress Responses: Challenges and Potential for Sugarcane Improvement

Javed

Shabbir

Ali

et al. 2020

Plants

174

107

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Increasing vulnerability of crops to a wide range of abiotic and biotic stresses can have a marked influence on the growth and yield of major crops, especially sugarcane (Saccharum spp.). In response to various stresses, plants have evolved a variety of complex defense systems of signal perception and transduction networks. Transcription factors (TFs) that are activated by different pathways of signal transduction and can directly or indirectly combine with cis-acting elements to modulate the transcription efficiency of target genes, which play key regulators for crop genetic improvement. Over the past decade, significant progresses have been made in deciphering the role of plant TFs as key regulators of environmental responses in particular important cereal crops; however, a limited amount of studies have focused on sugarcane. This review summarizes the potential functions of major TF families, such as WRKY, NAC, MYB and AP2/ERF, in regulating gene expression in the response of plants to abiotic and biotic stresses, which provides important clues for the engineering of stress-tolerant cultivars in sugarcane.

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“…Each of experiment was replicated three times. Bars shown means ± SD TF, SsNAC23, is induced by low temperatures in sugarcane (Ditt et al 2011). Here, we found that the expression levels of two NAC TFs increased by cold treatment in ROC22 but remained unchanged in GT42 (Table 2, Fig.…”

Section: Transcription Factors May Play Roles In Regulating Cold Resistance In Sugarcane Budsmentioning

confidence: 53%

Comparative Transcriptome Analysis Reveals Potential Gene Modules Associated with Cold Tolerance in Sugarcane (Saccharum officinarum L.)

Huang

Liang

Zhang

et al. 2021

J Plant Growth Regul

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Sugarcane is an important crop worldwide, and most sugar is derived directly from sugarcane. Due to its thermophilic nature, the yield of sugarcane is largely influenced by extreme climate conditions, especially cold stress. Therefore, the development of sugarcane with improved cold tolerance is an important goal. However, little is known about the multiple mechanisms underlying cold acclimation at the bud stage in sugarcane. In this study, we emphasized that sensitivity to cold stress was higher for the sugarcane variety ROC22 than for GT42, as determined by physical signs, including bud growth capacity, relative conductivity, malonaldehyde contents, and soluble sugar contents. To understand the factors contributing to the difference in cold tolerance between ROC22 and GT42, comparative transcriptome analyses were performed. We found that genes involved in the regulation of the stability of the membrane system were the relative determinants of difference in cold tolerance. Additionally, genes related to protein kinase activity, starch metabolism, and calcium signal transduction were associated with cold tolerance. Finally, 25 candidate genes, including 23 variety-specific and 2 common genes, and 7 transcription factors were screened out for understanding the possible cold resistance mechanism. The findings of this study provide candidate gene resources for cold resistance and will improve our understanding of the regulation of cold tolerance at the bud stage in sugarcane.

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Analysis of the stress-inducible transcription factor SsNAC23 in sugarcane plants

Cited by 16 publications

References 46 publications

Effects of drought on the microtranscriptome of field-grown sugarcane plants

Effects of drought on the microtranscriptome of field-grown sugarcane plants

Transcription Factors in Plant Stress Responses: Challenges and Potential for Sugarcane Improvement

Comparative Transcriptome Analysis Reveals Potential Gene Modules Associated with Cold Tolerance in Sugarcane (Saccharum officinarum L.)

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