Prospecting sugarcane genes involved in aluminum tolerance

Drummond, Rodrigo Duarte; Guimarães, C. T.; Felix, Juliana de Maria; Ninamango-Cárdenas, Fernando Enrique; Carneiro, N. P.; Paiva, Edílson; Menossi, Marcelo

doi:10.1590/s1415-47572001000100029

Cited by 19 publications

(13 citation statements)

References 63 publications

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“…In contrast to these genes, the expression level of another stress-related gene, WALI6 showed a marked increase not only in salt-stressed, but also in salt-acclimated plants. It has been suggested that this gene encodes a protease inhibitor and can be induced by aluminium, especially in the roots (Richards et al, 1994;Drummond et al, 2001). Recently, the elevated expression of WALI6 was observed in the leaves after wheat seedlings were exposed to H 2 O 2 (Ge et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Salt acclimation processes in wheat

Janda

Darkó

Shehata

et al. 2016

Plant Physiology and Biochemistry

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Young wheat plants (Triticum aestivum L. cv. Mv Béres) were exposed to 0 or 25 mM NaCl for 11 days (salt acclimation). Thereafter the plants were irrigated with 500 mM NaCl for 5 days (salt stress). Irrigating the plants with a low concentration of NaCl successfully led to a reduction in chlorotic symptoms and in the impairment of the photosynthetic processes when the plants were exposed to subsequent high-dose salt treatment. After exposure to a high concentration of NaCl there was no difference in leaf Na content between the salt-acclimated and non-acclimated plants, indicating that salt acclimation did not significantly modify Na transport to the shoots. While the polyamine level was lower in salt-treated plants than in the 2 control, salt acclimation led to increased osmotic potential in the leaves. Similarly, the activities of certain antioxidant enzymes, namely glutathione reductase, catalase and ascorbate peroxidase, were significantly higher in salt-acclimated plants. The results also suggest that while SOS1, SOS2 or NHX2 do not play a decisive role in the salt acclimation processes in young wheat plants; another stress-related gene, WALI6, may contribute to the success of the salt acclimation processes. The present study suggested that the responses of wheat plants to acclimation with low level of salt and to treatment with high doses of salt may be fundamentally different.

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Section: Discussionmentioning

confidence: 99%

Salt acclimation processes in wheat

Janda

Darkó

Shehata

et al. 2016

Plant Physiology and Biochemistry

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“…For this purpose, a sugarcane expressed sequence tag (SUCEST) data bank (http://www. sucest-fun.org) has been used to study biochemical pathways related to Al toxicity in related grasses such as maize, barley and sorghum due to the level of genomic conservation (Drummond et al 2001). For instance, sugarcane expressed sequence tags (ESTs) were used to analyze the expression profile of maize genes in root tips of Al-tolerant and Al-sensitive genotypes (Cançado et al 2008).…”

Section: Toxic Metal Stressmentioning

confidence: 99%

Sugarcane Under Pressure: An Overview of Biochemical and Physiological Studies of Abiotic Stress

Azevedo

Carvalho

Cicarelli

et al. 2011

Tropical Plant Biol.

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Sugarcane is now an extremely important crop, particularly in tropical countries. Its use for sugar and ethanol production is critical and cultivated area and biomass yield are increasing. Environmental pollution by anthropogenic activities is perhaps one of the most disturbing problems the world is facing and the cultivation of crops is subjected to this pollution, which may result in drastic effects on crop production. Curiously, the literature on the study of abiotic stresses on sugarcane is very limited, indicating that there is far more research to be done and investigations on this topic need to be prioritized. In this article, we have tried to focus on four key abiotic stresses, drought, temperature, salt and toxic metals, to which sugarcane is most likely to be subjected and reviewed the scarce current literature on the subject.

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“…Aluminium is a major factor limiting crop productivity in acid soils, causing a substantial reduction in yield for many plants [7]. The primary effect of aluminium toxicity is inhibition of root elongation.…”

Section: Case Study 4: Profiling Expression Of Aluminium-tolerance Gementioning

confidence: 99%

Emerging Use of Gene Expression Microarrays in Plant Physiology

Wullschleger

DiFazio

2003

Comparative and Functional Genomics

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Microarrays have become an important technology for the global analysis of gene expression in humans, animals, plants, and microbes. Implemented in the context of a well-designed experiment, cDNA and oligonucleotide arrays can provide highthroughput, simultaneous analysis of transcript abundance for hundreds, if not thousands, of genes. However, despite widespread acceptance, the use of microarrays as a tool to better understand processes of interest to the plant physiologist is still being explored. To help illustrate current uses of microarrays in the plant sciences, several case studies that we believe demonstrate the emerging application of gene expression arrays in plant physiology were selected from among the many posters and presentations at the 2003 Plant and Animal Genome XI Conference. Based on this survey, microarrays are being used to assess gene expression in plants exposed to the experimental manipulation of air temperature, soil water content and aluminium concentration in the root zone. Analysis often includes characterizing transcript profiles for multiple post-treatment sampling periods and categorizing genes with common patterns of response using hierarchical clustering techniques. In addition, microarrays are also providing insights into developmental changes in gene expression associated with fibre and root elongation in cotton and maize, respectively. Technical and analytical limitations of microarrays are discussed and projects attempting to advance areas of microarray design and data analysis are highlighted. Finally, although much work remains, we conclude that microarrays are a valuable tool for the plant physiologist interested in the characterization and identification of individual genes and gene families with potential application in the fields of agriculture, horticulture and forestry.

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Prospecting sugarcane genes involved in aluminum tolerance

Cited by 19 publications

References 63 publications

Salt acclimation processes in wheat

Salt acclimation processes in wheat

Sugarcane Under Pressure: An Overview of Biochemical and Physiological Studies of Abiotic Stress

Emerging Use of Gene Expression Microarrays in Plant Physiology

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