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Type: Artigo de periódico
Title: Gene expression profiling in maize roots under aluminum stress
Author: Cancado, GMA
Nogueira, FTS
Camargo, SR
Drummond, RD
Jorge, RA
Menossi, M
Abstract: To investigate the molecular mechanisms of Al toxicity, cross-species cDNA array approach was employed to identify expressed sequence tags (ESTs) regulated by Al stress in root tips of Al-tolerant maize (Zea mays) genotype Cat100-6 and Al-sensitive genotype S1587-17. Due to the high degree of conservation observed between sugarcane and maize, we have analyzed the expression profiling of maize genes using 2 304 sugarcane (ESTs) obtained from different libraries. We have identified 85 ESTs in Al stressed maize root tips with significantly altered expression. Among the up-regulated ESTs, we have found genes encoding previously identified proteins induced by Al stress, such as phenyl ammonia-lyase, chitinase, Bowman-Birk proteinase inhibitor, and wali7. In addition, several novel genes up-and down-regulated by Al stress were identified in both genotypes.
Subject: abiotic-stress
Saccharum sp.
Zea mays.
Country: Holanda
Editor: Springer
Rights: fechado
Identifier DOI: 10.1007/s10535-008-0093-5
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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