Background: Regulation of microRNA activity independent of processing and biogenesis has not been demonstrated.Results: The RNA-binding protein, TDP-43, interacts with mature miR-1/miR-206, limiting their RNA-induced silencing complex (RISC) association and activity.Conclusion: RNA-binding proteins can selectively control microRNA activity by disrupting RISC incorporation.Significance: This is the first known microRNA-protein interaction that controls microRNA activity independent of processing.
Lantana camara L. (Verbenaceae) is cultivated as an ornamental and hedge plant in many countries which is native to American tropics. It’s introduction to the Indian subcontinent dates back around 200 years ago. It is an invasive alien species that has a negative impact on native biodiversity. It is evident that management of L. camara is crucial for the conservation of biodiversity. Studying its phenological characteristics as they adapt to environmental circumstances through time and space will aid in the development of management goals and strategies. This study uses BBCH scale firstly to describe the phenology of L. camara, which is represented by nine Phenological Growth Stages (PGS) in response to environmental conditions during a 32-month period in Dehradun, Uttarakhand, representing its growth. To standardise morphological traits and the phenological observation, photographs of certain significant developmental stages on L. camara in addition to the descriptions have been illustrated. Researchers can utilise this uniform labelling method as a tool to help with weed management efforts. Phenological studies of this invasive weed species may be employed for tracking the gradual impact of climate change on biodiversity and its effect on the key phenological events in the lifecycle.
Climate change is a worldwide issue with detrimental effects on ecosystems and human well-being. Reducing Emissions from Deforestation and Forest Degradation (REDD) is a worldwide policy tool for combating climate change by reducing emissions from the forestry sector and has received widespread attention. Since the program's inception, India has been a strong advocate for REDD+ and its activities. The goal of this research is to evaluate India's current REDD+ readiness. India is the fourth largest CO2 emitter in the world, accounting for 7% of global CO2 emissions. India's emission trajectory shows the country's ever-increasing CO2 emission trend, with an annual average increase rate of 5-6 percent. India has a large geographical area and forest cover, and it holds 7,124.6 million tons of carbon stock. Forests are traditionally managed through a participatory approach, which is similar to REDD+ activities. India has made significant progress toward REDD+ implementation by developing a national REDD+ strategy, enacting consistent laws and regulations, and demonstrating accountability and monitoring of national forest carbon. However, several issues, including forest dependency, community rights, capacity building, policies, and finance, should be carefully addressed to overcome hurdles in REDD+ implementation.
Tropical forests are a global biodiversity centre providing enormous ecosystem services to the humankind. The present study was undertaken to examine and analyze the phytosociology and regeneration status of tree species in 39 permanent preservation plots spread across 22 different forest sub-types in Madhya Pradesh, India. A total of 975 quadrats were laid with a sampling intensity of 2.42% of the total area under study. 109 tree species were recorded. Density range varied from 516 individuals/hectare (ind/ha) in southern tropical dry deciduous forests to 3,412 ind/ha in dry grassland forests. Most of the forest sub-types showed log normal distribution owing to relatively high species richness, diversity and evenness, but a low dominance. Out of 62,228 live stems recorded, 68.52% were poles followed by saplings (26.39%), young trees (5.01%) and mature trees (0.08%). The result also showed high seedling density in each forest sub-type ranging from 1,040 ind/ha to 51,124 ind/ha, indicating a healthy population of mature reproducing adults. The diameter distribution in all the forest sub-types showed negative slope and followed the classic inverse J-shaped curve frequently observed in natural forests. Most of the forest sub-types in these preservation plots are regenerating successfully owing to the absolute protection given to the studied sites. It is recommended to study carbon sequestration in these permanent preservation plots over a time, which will inform climate policymakers about the true potential of Indian tropical forests as carbon sink.
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