How Bats hourbour several harmful viruses without falling sick
Bats serves as natural hosts for numerous viruses including ebola virus , Nipha virus, coronavirus such as Severe Acute Respiration Syndrome (SARS), and Middle East Respiratory Syndrome (MERS) and 2019 novel coronavirus that has infected nearly 10,000 people and killed over 200 others.
The study carried out last year and published in journal Nature Microbiology the mechanism responsible for bat to harbor numerous viruses without themselves getting affected and also live long compared with terrestrial mammls bats have longer lifespan.
The reason why bats can harbour this viruses without getting affected is simple because bats can avoid excessive viruses induced inflammation, which address called sever diseases in animals and people infected with virus.
When pathogen infected humans and mice,the immune system gets activated and inflammatory response to fight the microbes is seen. While controlled inflammatory response to fight infection help keep human healthy it can contribute to the damaged caused by infection diseases , and also age related diseases when the inflammatory response becomes excessive.
In complete contrast the researchers found that the inflammatory response is dampened in bats immaterial of the variety of viruses that are present on the viral loads.
The researchers found that significantly reduced inflammation in bats was because activation of an important protein- NLRP3 that recognises both cellular stress and viral/bacteria infection was significantly dampened in bats immune cells.
Pluto's beating heart
A Pluto is beating heart A new study is published in journal Geophysical researchers. Planets find that Pluto has a beating heart of frozen nitrogen that may control the winds on its surface giving rise to various structures there. Pluto thin atmosphere consist mostly of nitrogen small amount of carbon monoxide and methane.
Silent Sand-shake
Silent sand shake, Sand dunes can interact and communicate with the their neighboring dunes actually repeal then according to a new study published in Physical Review Letters. Identical dune close to each other move further apart with time the researchers observed. Turbulent swirl from the upstream dune away.
Finding the Elephant's long-lost relatives in Kutch
- Excavation work at Kutch-found-Premolar-tooth of about 6 cm width and 7 cm length-belong to an extinct ancient elephant called Deinotherium indicum.
- Using a technique called biostratigraphy, it was noted that D. Inducum lived roughly 11 and 7 year ago in India. Biostatigraphy is the branch of stratigrapgy which focuses on correlating and assuming relative ages of rock starta by using fossil assemblages contain within them.
- This species was fairly distant relative of today's elephant both evolutionary and the time.
- Scientists have mapped the complete genome of two basmati rice varieties, including one that is drought tolerant and resistant to bacterial diseases.
- The finding published in the Journal Genome Biology , also shoes that basmati rice is a hybrid of two other rice groups.
- Despite the economical and cultural importance of basmati and related aromatic rive varieties their evolutionary history is not fully understood
- In genetic a molecular market is (identified as a genetic marker) is a fragment of DNA that is also with a certain location within the genome
- Molecular makers are used in molecular biology and and biotechnology to identify a particular sequence of DNA in a pool of unknown DNA.
The world largest Willy mammoth is suffered from serious genetic defects due to inbreeding that may have hampered sense of smell and male sterility
Scientist decoded the genome of one of the last mammoth from Wrangell island off Siberia coast. The study has been published in Genome Biology and Evolution.
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