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| Content Provider | Springer Nature Link |
|---|---|
| Author | Hameed, Amjad Akhtar, Khalid Pervaiz Saleem, Muhammad Yussouf Asghar, Muhammad |
| Copyright Year | 2010 |
| Abstract | Eighteen tomato genotypes, with varying degree of response to Alternaria leaf blight disease (ALBD) were used to assess the possible involvement of protease and peroxidase activities in disease response. Pre-infectional protease activity varied noticeably in tested genotypes. Highest pre-infectional protease activity was observed in susceptible genotype CLN-2123. Post-infectional protease activity level was generally lower when compared with pre-infectional level in all genotypes with exception of unchanged level in Tibrido. There was no correlation between post-infectional protease activity and percent disease index (%DI). In contrast, pre- and post-infectional leaf peroxidase activities showed a significant (p < 0.01) negative correlation with %DI. Genotypes with higher pre-infectional peroxidase activity performed better on exposure to Alternaria alternata infection and accumulate enhanced peroxidase activity. Tibrido accumulated highest peroxidase activity while level was lowest in 1621P, which showed highest ALBD incidence. Moreover, genotypes with better resistance to A. alternata infection maintained higher post-infectional peroxidase activity. In resistant (Tibrido) and all moderately resistant genotypes, leaf peroxidase activity raised after inoculation when compared with the pre-inoculation level. I summary, higher pre- and post-infectional peroxidase activity was found to be associated with Alternaria leaf blight resistance. The peroxidase activity can be used as a biochemical tool in marker-assisted screening of tomato germplasm for Alternaria leaf blight resistance. |
| Starting Page | 1171 |
| Ending Page | 1176 |
| Page Count | 6 |
| File Format | |
| ISSN | 01375881 |
| Journal | Acta Physiologiae Plantarum |
| Volume Number | 32 |
| Issue Number | 6 |
| e-ISSN | 18611664 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2010-05-09 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Alternaria alternata Antioxidants Lycopersicon esculentum Peroxidase Protease Agriculture Plant Anatomy/Development Plant Pathology Plant Biochemistry Plant Genetics & Genomics Plant Physiology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physiology Plant Science Agronomy and Crop Science |
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