Diplodinium in rumen fluid

DBT Foldscope scheme – “Foldscope for diagnosis of rumen acidosis and parasitic infection in cattle” Rumen fluid was collected from a healthy cow. Smear was prepared with one drop of rumen fluid, stained with methyl green and visualized under foldscope. Protozoa under the genus Diplodinium was identified. Morphology of Diplodinium is large rounded body, thick…

DBT twinning programme on Foldscope project with North Eastern Institute

DBT Foldscope scheme- “Foldscope for diagnosis of rumen acidosis and parasitic infections in cattle” DBT Twinning programme on foldscope project with north eastern institute Foldscope project functioning at the Department of Animal biotechnology has been twinned with Department of Biotechnology, Donbosco college, Maram, Manipur. Mr. S. Rajkumar, Head of the Department, Department of Biotechnology, Donbosco…

Hair on body of Honey bee

Closeup of hairs on the thorax of a worker bee. Each hair is branched (plumose), enabling it to trap pollen grains more effectively.


Tomopteris is a marine planktonic group of polychaete worms. They are very common in all they oceans and seas, many of them living in the deep-sea. All of these tomopteris species emit blue light, called luminescence. Tomopteris helgolandica emits also a yellow light. All Tompteris are transparant . It feeds on other plankton members. (…

Fungus grown on bark

I came across this fungus growing on dead bark of betel nut tree. I picked few fungus, observed there and then using paper slide and cello-tape which I carry in my foldscope kit. I collected the bark sample to prepare the slide of the fungus using Lactophenol blue stain for identification.


Eyes of lucifer- a prominent part of body Thorax region


Observed this bunch of foraminifera on a permanent slide.

Spirochetes in rumen fluid

DBT Foldscope scheme – “Foldscope for diagnosis of rumen acidosis and parasitic infections in cattle” Spirochetes are motile, spiral bacteria. Bovine rumen fluid contains large numbers of spirochetes. Spirochetes are capable of fermenting polymers that are commonly present in the plant materials. Polymers such as xylan, pectin and arabinogalactan are used as substrate by spirochetes….

Holotrich Protozoa identification in a field setting

DBT Foldscope scheme – “Foldscope for diagnosis of Rumen acidosis and Parasitic infection in cattle”. This post is in response to Manu Prakash’s comment on our previous post (Holotrich protozoa – from Rumen fluid). Rumen fluid was collected from an healthy cow  (Figure 1) in a sterile container (figure 2).  A drop of rumen fluid was…

Pollen of Golden duranta flower

Duranta – Yellow Foliage. The most common form of hedging Duranta is “Sheena’s Gold”. It’s striking for its yellow foliage. It has a dense habit and is happy to be kept as a low to medium size hedge. … More often it’s used as a feature plant or as a striking companion hedge to a green hedge like Murraya or Box.

Freshwater organism- Seed Shrimp

Many different species of Seed Shrimp live in vernal pools. They come in many colors. They have a single eye. The body of a Seed Shrimp is protected by two shells that form its carapace. The carapace resembles a seed, so they are called Seed Shrimp. The body inside the carapace is short with two…

Spores of Fern

Ferns are reproduced from spores that are gathered in clusters called sori, which are usually on the underside of the fronds. The spores can be yellow, green, brown, or black. The sori are sometimes covered with a membrane called an indusium, which will lift up when the spores are ripe.


The fungus was isolated from a plates exposed to air and the slide was prepared using no stain. the identification part is still going on.

Workshop on Foldscope at Meghalaya, India

The prop roots of Ficus elastica (rubber tree) are trained over 15-20 years to form the natural living bridge to cross rivers and streams found in Meghalaya. The bridges grow to approximately 50 to 100 feet long and have strong and deep interwoven prop roots providing a boat-shaped foothold. A workshop on Foldscope has been…

Workshop on Foldscope at Universal Bee Club

Department of Environmental Science, University of Calcutta organized a one day workshop on Foldscope at Universal Bee Club, Bauria, and West Bengal in collaboration with Howrah Vigyan Chetna Samannaya. 25 beekeepers from various parts of West Bengal participated in this workshop. Introductory session- At first, a brief introduction on Foldscope was given to the participants….

Beekeeping training summer camp at Universal Bee Club

Department of Environmental Science, University of Calcutta organized a workshop on Foldscope at Beekeeping training summer camp, at Universal Bee Club, Bauria, West Bengal in collaboration with Howrah Vigyan Chetna Samannaya. Introductory session-In this camp, the brief idea of melissopalynology and the use of melissopalynology for evaluation of honey was given to the beekeepers. Demonstration…

28th April, 2019: Foldscope workshop at NCMR, Pune

It was a great experience organizing this workshop for school students in Pune at the National Centre for Microbial Resource (NCMR-NCCS) with Dr. Praveen Rahi’s help. The students had a great time, and it was wonderful to see the excitement on their faces as they assembled their Foldscope and viewed all sorts of samples. I…

Cells of red leaves of Poinsettia

The bright petals of Poinsettias, which look like flowers, are actually the bunch of upper leaves of the plant, called bracts. Poinsettia flowers are small, green or yellow, and grow inconspicuously in the center of each leaf bunch. The ancient Aztecs (the Mexican Indians) prized the Poinsettia as a symbol of purity. Centuries later, Mexico’s…