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E-GEOD-21070

ABSTRACT: Expression profile of contrasting maize genotypes grown on acid and control soil (root tips)

OTHER RELATED OMICS DATASETS IN: PRJNA126735

PROVIDER: E-GEOD-21070 | ExpressionAtlas | 2016-10-04

REPOSITORIES: ExpressionAtlas

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			Action	DRS
	E-GEOD-21070-analysis-methods.tsv	Tabular
	E-GEOD-21070-atlasExperimentSummary.Rdata	Rdata
	E-GEOD-21070-configuration.xml	Xml
	E-GEOD-21070-percentile-ranks.tsv	Tabular
	E-GEOD-21070.condensed-sdrf.tsv	Tabular

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Expression profile of contrasting maize genotypes grown on acid and control soil (root tips)

Project description:Aluminum toxicity is one of the major limiting factors for many crops worldwide. The primary symptom of Al toxicity syndrome is the inhibition of root growth, leading to poor water and nutrient absorption. The causes of this inhibition are still elusive, with several biochemical pathways being affected and with a significant variation between species. Most of the work done so far to investigate the genes responsible for Al tolerance used hydroponic culture. Here we evaluated plant responses using soil as substrate, which is a condition closer to the field reality. We used Affymetrix chips to reveal the transcriptional changes of two maize genotypes contrasting for Al tolerance. Root tips from Cat100-6 (Al-tolerant) and S1587-17 (Al-sensitive) maize genotypes were harvested after growing on acid or control soil for 1 or 3 days. Total RNA was extracted and hybridized to Affymetrix GeneChip Maize Genome Array. Three biological replicates were used for each sample.

2010-09-20 | E-GEOD-21070 | biostudies-arrayexpress

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Project description:Aluminum (Al) toxicity is a major factor limiting crop yields on acid soils. In maize, Al tolerance is a complex phenomenon involving multiple genes and physiological mechanisms yet uncharacterized. To begin elucidating the molecular basis of maize Al toxicity and tolerance, we performed a detailed temporal analysis of root gene expression under Al stress using microarrays with an Al-tolerant and an Al-sensitive maize genotype. Seedlings of both genotypes were grown in hydroponics in a full nutrient solution containing 39uM of free Al3+ activity. Root samples were collected at 'time zero', and after 2, 6 and 24 hours of treatment. Keywords: stress treatment, time course

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E-GEOD-22479

Project description:Expression profile of contrasting maize genotypes grown in acid and control soil (leaves)

2016-10-04 | E-GEOD-22479 | ExpressionAtlas

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