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Stem infection of Tulsi (Ocimum tenuiflorum) grown in a pot by Botryosporium longibrachiatum

| Fri, Oct 25, 2019, 10:31 PM



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Tulsi is cultivated for religious and traditional medicine purposes by every household in India. It has a place within the Hindu traditions, in which devotees perform worship involving holy basil plants or leaves.

I also have tulsi plants are grown in my balcony, last Sunday morning, I observed white cottony hoar-frost fungal growth on the stem of Tulsi plant (Fig. 1).

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Fig. 1 Hoar-frost fungal infestation on Tulsi stem.

To take a close look, I observed a Macro lens with my Samsung S9 phone, I could see elongated and upright conidiophore (Fig. 2).

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Fig. 2 Upright Conidiophores of B. longibrachiatum on the tulsi stem.

I took a glass slide, which I always keep at home along with foldscope kit, and transferred the fungal growth from the stem to slide using a needle. After observing it under foldscope, I could see lateral fertile branches in acropetal order (Fig. 3).

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Fig. 3 Lateral fertile branches of B. longibrachiatum in acropetal order

After using the digital zoom function of my smartphone, I could capture the conidia, which were hyaline and oval in shape, and often found in clusters (Fig. 4).

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Fig. 4 Cluster of conidia of B. longibrachiatum



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Type of Sample
unknown
Foldscope Lens Magnification
140x

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