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In situ localization of avenanthramide A and its biosynthetic enzyme in oat leaves infected with the crown rust fungus, Puccinia coronata f. sp. avenae
- Source :
-
Physiological & Molecular Plant Pathology . Dec2011, Vol. 76 Issue 3/4, p173-181. 9p. - Publication Year :
- 2011
-
Abstract
- Abstract: We determined the temporal and spatial localization of the phytoalexin avenanthramide A, and its biosynthetic enzyme, hydroxycinnamoyl-CoA:hydroxyanthranilate N-hydroxy-cinnamoyltransferase (AsHHT) in oat leaves infected with the crown rust fungus. Accumulation of avenanthramide A and AsHHT was first observed predominantly in hypersensitive response (HR) cells at 36 h post inoculation (hpi), and later in adjacent cells at 48 hpi. At 120 hpi, avenanthramide A was detected in a wider area of infected tissues, but AsHHT-positive signals were only observed in the HR and adjacent cells, suggesting that avenanthramide A was synthesized around the HR cells, and then transported to other parts of the infected tissues in a center-to-periphery manner. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 08855765
- Volume :
- 76
- Issue :
- 3/4
- Database :
- Academic Search Index
- Journal :
- Physiological & Molecular Plant Pathology
- Publication Type :
- Academic Journal
- Accession number :
- 67512751
- Full Text :
- https://doi.org/10.1016/j.pmpp.2011.09.004