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ScienceDaily: Plants & Animals News |
| Impaired T cell function precedes loss of natural HIV control Posted: 09 Sep 2021 01:22 PM PDT A small subset of people, known as controllers, are able to suppress HIV naturally, without the need for medication. A small percentage of controllers ultimately lose the ability to suppress the virus. Researchers have found that aborted control is likely due to HIV-specific T cells losing the ability to replicate and kill infected cells, which can happen years before. |
| Team sequences shea tree genome to support breeding and conservation efforts Posted: 09 Sep 2021 01:22 PM PDT The shea tree is best know as a source for a multimillion-dollar ingredient used in cosmetics, personal care products, pharmaceuticals and chocolate. But for hundreds of thousands of African families living in the 'shea belt' it is also a crucial source of nutrition and income. Despite its increasing demand, the slow-growing shea tree is being threatened by other cash crops and its preservation most likely lies in its genetic improvement. To enable such work, an international team of researchers has sequenced the shea tree's genome, providing a valuable resource for the strategic development of the species. |
| Forest edges in the tropics increase carbon emissions Posted: 08 Sep 2021 03:05 PM PDT Tropical rain forests are becoming fragmented at a higher rate than expected. By analyzing high-resolution satellite data, researchers were able to measure even the smallest piece of tropical forest and study the changes in tropical fragmentation. In a new paper, they discuss how this previously unnoticed and underestimated increase in fragmentation to almost one third of the forest area has consequences for the global carbon cycle. |
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