| Autor: |
Ansari, Mohammad Wahid, Shukla, Alok, Pant, Ramesh Chandra, Tuteja, Narendra |
| Zdroj: |
Plant Signaling & Behavior; January 2013, Vol. 8 Issue: 1 |
| Abstrakt: |
Malformation is arguably the most crucial disease of mango (Mangifera indicaL.) at present. It is receiving great attention not only because of its widespread and destructive nature but also because of its etiology and control is not absolutely understood. Recently, Fusarium mangiferaeis found to be associated with mango malformation disease. There are indications that stress ethylene production could be involved in the disease. Here we have shown the first direct evidence of production of ethylene in pure culture of F. mangiferaeobtained from mango. The study also revealed that all the isolates dissected from mango acquire morphological features of F. mangiferaeshowing most similarity to the features of species with accepted standard features. The isolates of F. mangiferaefrom mango were observed to produce ethylene in significant amounts, ranging from 9.28–13.66 n mol/g dry wt/day. The findings presented here suggest that F. mangiferaecould contribute to the malformation of mango by producing ethylene and probably stimulating stress ethylene production in malformed tissue of mango. Ethylene might be produced through 2-oxoglutarate-dependent oxygenase-type ethylene-forming-enzyme (EFE) pathway in Fusariumsp, which needs to be investigated. |
| Databáze: |
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