theIASHub | 19 Jul, 2025 | 35
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Allographa Effusosoredica : Recently, in a remarkable discovery that deepens our understanding of biodiversity and ancient symbiotic systems, scientists have identified a new species of lichen, Allographa effusosoredica from the ecologically rich Western Ghats.
o Both morphological and molecular analyses (fungal component and algal symbiont) confirmed its novelty.
o It is phylogenetically close to Allographa xanthospora but shows strong morphological resemblance to Graphis glaucescens, suggesting evolutionary convergence.
o This is the first Indian species of Allographa validated through molecular sequencing, showcasing the power of integrative taxonomy.
o This symbiosis allows them to thrive in extreme environments and contribute to soil formation, nutrient cycling, and air quality monitoring.
oT he newly discovered species harbours a rare algal photobiont from the genus Trentepohlia, rarely seen in tropical lichens.
o The discovery underscores the biodiversity significance of the Western Ghats, a region under threat from deforestation, urbanisation, and climate stress.
o It calls for enhanced molecular and ecological research into unexplored microbial and fungal life—many of which may unlock insights into climate adaptation, ecosystem resilience, or biomedical applications.
Cnemaspis Brahmaputra : Recently, in a remarkable zoological discovery, researchers identified a new species of gecko—Cnemaspis brahmaputra—from the riverbanks of Assam, India.
o The species was discovered near the Dirgheswari Temple, located on the northern bank of the Brahmaputra River.
o Its presence in Assam points to an ancient biogeographic link between Sri Lanka and Northeast India, highlighting historical faunal exchange across the subcontinent.
o Distinctive Evolutionary Traits: The species is genetically and morphologically distinct from its Sri Lankan relatives, indicating significant evolutionary divergence.
ü Strengthens the understanding of regional endemism and evolutionary history in the Brahmaputra valley.
o Unique Features : Larger body size compared to related species.
ü Fewer mid-body scale rows but more ventral scale rows across the belly.
ü No tubercles on the lower flanks.
ü Presence of three enlarged rows of thigh scales, aligned parallel to the enlarged femoral scale row.
o The first species, Cnemaspis assamensis, was described in 2000.
o Both species are part of the podihuna clade and are restricted to the Brahmaputra River valley.
o Interestingly, the two species occur on opposite banks of the river and show significant genetic differences, emphasizing localized speciation.
Coronal Mass Ejections (CMEs) : Recently, scientists at the Indian Institute of Astrophysics traced the rare auroras over Ladakh in May 2024 to a unique sequence of six interacting Coronal Mass Ejections (CMEs).
o Together, these CMEs caused one of the most intense geomagnetic storms in the past two decades.
o They are caused by magnetic reconnection—the realignment of tangled magnetic field lines on the Sun.
o When magnetic field lines snap and reconnect, they release energy that can propel CMEs into space.
o CMEs often originate near sunspot groups and may occur alongside solar flares, although not always.
o Their speeds range from below 250 km/s to over 3000 km/s; the fastest Earth-directed CMEs can reach Earth in 15–18 hours.
o CMEs expand as they travel, with large ones filling up to a quarter of the Sun–Earth distance.
o They are most frequent during the solar maximum, the peak of the Sun’s 11-year activity cycle.
o Interfere with communication and GPS systems.
o Damage power grids and critical infrastructure.
o They also produce auroras when charged particles interact with Earth’s magnetic field.
Chronic Venous Insufficiency (CVI) : Recently, the White House officially confirmed that President Donald Trump has been diagnosed with Chronic Venous Insufficiency (CVI) following symptoms of swelling in his lower legs and bruising on his hand.
o It occurs due to damaged or weakened vein valves, leading to venous reflux—a backward flow of blood. This causes blood pooling in the lower legs and feet.
o Common Symptoms: Swelling, especially around the ankles and feet
ü Aching, heaviness, or tingling in the legs
ü Varicose veins – enlarged and twisted veins
ü Leg cramps, skin changes, and in severe cases, leg ulcers
ü Pulmonary Embolism – clots that travel to the lungs
Long-term progression can significantly affect mobility and quality of life.Urban Aerosol Clean Islands : Recently, a 17-year satellite-based study (2003–2020) of 141 Indian cities found that several cities in the north and northwest Indo-Gangetic Plain have lower aerosol levels than nearby rural areas. Researchers from IIT Bhubaneswar have dubbed these cities "Urban Aerosol Clean Islands“.
o 43% of cities (mainly in north & northwest Indo-Gangetic Plain) had lower aerosol levels than surrounding areas, termed Urban Aerosol Clean Islands.
o Clean island effect was most visible during pre-monsoon due to dust transport; disappears during monsoon and less prominent in winter.
o Wind Stilling Effect: Caused by urban structures slowing surface winds, creating atmospheric stagnation zones.
ü These act as invisible barriers, blocking long-range dust and pollution, especially from the Thar Desert and biomass burning.
‘Trade Connect’ ePlatform : Recently, the Directorate General of Foreign Trade (DGFT) showcased its flagship ‘Trade Connect’ ePlatform to promote the digital empowerment of Indian exporters, particularly MSMEs.
o Key features : Updated info on tariffs, trade events, certifications, and e-commerce opportunities.
ü Secure, paperless issuance of preferential and non-preferential Certificates of Origin.
ü A robust network of Indian Missions abroad, Export Promotion Councils, and Commodity Boards to assist exporters.
ü Multilingual interactive training modules to help MSMEs understand export procedures.
Hydrogen Peroxide (H₂O₂) : Recently, researchers at the S. N. Bose Centre for Basic Sciences (SNBCBS) achieved a major scientific breakthrough by developing a novel photocatalyst capable of converting sunlight and water directly into hydrogen peroxide (H₂O₂). The new material, named Mo-DHTA COF—a dimolybdenum-based covalent organic framework.
o Used in disinfection, water treatment, medical sterilization, & as an oxidizer in fuel cells.
o It has been engineered for efficient and eco-friendly hydrogen peroxide production using sunlight and water.
o High surface area and porosity enable better exposure for photocatalytic reactions.
o Narrow band gap allows strong absorption of visible light.
o Stable structure supports repeated reuse without performance loss.
Crushed 2025 : Recently, a new report titled Crushed 2025 by the Safe in India (SII) Foundation has raised alarming concerns about worker safety in India’s rapidly growing automotive sector.
o 78% of cases occurred in auto-component factories, mostly on illegally operated power presses.
o 70% of factories skip daily machine checks, inspecting only during breakdowns or audits.
o Women workers remain at higher risk, with frequent denial of basic entitlements like ESIC coverage.
o Most vulnerable segments of the workforce —migrant workers, contractual labourers, and individuals with limited education suffer a disproportionate burden of workplace injuries.
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