Title: Biochemical and Molecular Changes in Banana Plants Induced by Pratylenchus coffeae and Meloidogyne incognita
Abstract: A pot culture experiment was conducted to understand the biochemical and molecular changes associated with resistance reaction of banana against root-lesion and root-knot nematodes on five varieties of banana viz., Nendran (AAB), Robusta (AAA), Pisang Jari Buaya (AA), Karthobiumtham (ABB) and Musa balbisiana (BBB). The highest protein concentration and increased peroxidase activity was observed in cvs.Nendran and Robusta whereas minimum was observed in cvs.Musa balbisiana, Karthobiumtham and Pisang Jari Buaya. The activity of polyphenol oxidase was reduced in infected plants of cvs.Nendran and Robusta. But, the activity increased in cvs.Pisang Jari Buaya and Musa balbisiana. The phenylalanine ammonia lyase (PAL) activity was significantly lower in cvs.Nendran and Robusta compared to other three varieties. The phenolic accumulation was increased by 56% in cv.Nendran after nematode infection whereas there was only 2% increase in Karthobiumtham. The molecular analysis indicated a higher rate of mRNA synthesis soon after nematode infection.
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
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Cited By Count: 3
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