Department of Botany

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    BIOACTIVITY OF ENDEMIC ORCHIDS OF WESTERN GHATS; PHOLIDOTA PALLID LINDL AND ARUNDINA GRAMINIFOLIA (D. DON) HOCHR
    (Plant Archives, 2021-04) Sharone gladies E; Chithra Devi B.S
    Pholidota pallida And Arundina graminifolia is an Endemic orchid species belongs to orchidaceae family. It is mainly found in Western Ghats of India. It is used to treat various diseases such as liver affection, wound healing, rheumatism, abdominal pain, ear pain, diabetes etc. The present study is to identify the phytochemicals, Anticancer, Antioxidant, Antimicrobial and nanoparticle synthesis from leaves extract of Pholidota pallid and Arundina graminifolia. The phytochemical analysis revealed the presence of Alkaloids, Terpenoids, Phenols, Sugar, Saponins, Flavonoids, Quinin’s and Steroids. While comparing Pholidota pallida possess more bioactivity than Arundina graminifolia.
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    IN VITRO REGENERATION OF ARUNDINA GRAMINIFOLIA (D. DON) HOCHR
    (Plant Archives, 2021-04) Sharone gladies E; Chithra Devi B.S
    We can see Orchids come in a wide variety of shapes, sizes, colours, and textures far beyond the human mind’s imagination. They emerge from seeds in nature, but in the absence of suitable hosts, they do not germinate in sufficient numbers. This problem was solved by using the tissue culture technique for its germination. One of the successful method used for mass propogation of orchid plantlets is in vitro techniques. Therefore, an initial analysis was conducted in order establish an appropriate procedure for mass multiplication of Arundina graminifolia. MS (Murashige and Skoog) medium was found to be suitable for the asymbiotic seed germination of Arundina graminifolia. Direct protocorm like bodies were induced by using combinations and individual supplement of MS medium with IAA (Indole-3-acetic acid), IBA (Indole-3- butyric acid), BAP (6-Benzylaminopurine) and KIN (Kinetin). Hormone-free MS basal medium was found suitable for the conversion of PLBs (protocorm-like bodies) into complete plantlets