Catharanthus roseus L. of family Apocynaceae is an important medicinal value plant containing anticancerous biomolecule compounds of high yielding vinblastine and ajmalcine and vincristine alkaloid contents containing compounds (Verpoortee et al., 1997). It is commonly known as madagaskar origin periwinkle, and it is extensively used in drug industries for extracting a number of anticancerous compounds (Misra and Kumar, 2000). It is widely grown in the gardens and obtained in the natural surroundings of the tropical and subtropical areas (Neuss, 1980). It often grows in degraded soils at low altitude, which is having non-availability of Ferrum (Fe) and poor fertility of Phosphorous (P) and Zinc (Zn). In this context, the presence of the Vesicular-Arbascular Mycorrhizal (VAM) fungus, Glomus fasiculatum (Thaxt. sensu Gerd.) with Taxus influences the growth and productivity in P and Zn depleted soil with unavailable Fe.

Furthermore, when available P and Zn levels in soils are low, VAM stimulates significant increase in P and Zn uptake, resulting in a dramatic increase in plant growth (Gerdemann, 1968; Mosse, 1973). Association of VAM would facilitate the growth, productivity and higher biomass obtained due to synergetic effect of VAM photosynthates. Reports reveal that no specific and systematic work has been done on VAM association with Catharanthus roseus L., except for a few reports on the occurrence of Glomus mosseae in Casuarina equisetifolia and for Glomus aggregatum in Cymbopogon martini.

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