2025-05-11 02:40:29动物植物
九年的研究表明,山地植物对气候变化的适应速度不够快

A team of plant biologists, geneticists and ecologists from the University of Georgia, Rocky Mountain Biological Laboratory, the University of California and Davidson College has found via a nine-year study of Drummond's rockcress plants that many mounta

阅读全文
2025-05-11 02:30:10动物植物
研究将早古生代三叶虫体型变化与海洋含氧量联系起来

A recent study shows that marine oxygen levels were crucial to the evolution of early Paleozoic trilobite body size, suggesting that oxygen may have influenced the evolution of other animals' body size as well.

阅读全文
2025-05-11 02:16:56动物植物
融合蛋白FC的相分离揭示了罕见癌症肿瘤发展的新机制

Dynamic remodeling of the endomembrane system is a core biological process essential for maintaining cellular compartmentalization and homeostasis. Proteins enriched in intrinsically disordered regions (IDRs) can drive membrane curvature formation in arti

阅读全文
2025-05-11 02:02:50动物植物
抗菌肽的发现可能会改变猪病管理

USask researchers recently published a paper in Scientific Reports that identified a promising alternative for controlling infectious diseases such as swine dysentery. Porcine β-defensin 5, or pBD-5, is a host defense peptide (HDP) that may help to reduce

阅读全文
2025-05-11 01:49:53动物植物
利亚纳斯正在接管热带雨林,从太空可以看到

A pandemic of lianas is sweeping through tropical forests, reducing their ability to store carbon and limiting their role in mitigating climate change. Two recent studies from Leiden University highlight the issue. "We now understand why lianas are v

阅读全文
2025-05-11 01:36:14动物植物
研究人员发现了大型无蛋白RNA结构

Ribonucleic acid (RNA) molecules may be best known for their job ferrying the genetic information encoded in DNA to a cell's protein factories, but these molecules aren't just a middleman for protein production. In fact, some RNA molecules don't code f

阅读全文
2025-05-11 01:23:10动物植物
质谱法在几分钟内而不是几天内识别病原体

Traditionally, bacterial diseases are diagnosed by the tedious isolation of pathogens and the creation of bacterial cultures. Waiting times of several days are the rule here. Only then can targeted treatment of the disease begin.

阅读全文
2025-05-11 01:11:14动物植物
为什么大黄蜂喜欢黄色花朵而不是红色花朵,以及为什么它对生物多样性很重要

Some years ago, scientists examining wild plants in a western corner of the United States encountered a curiously colorful example of biodiversity.

阅读全文
2025-05-11 00:58:19动物植物
为什么有些哺乳动物在紫外线下发光

James Cook University scientists have been trying to discover exactly why some animals glow under ultraviolet light. JCU researcher Linda Reinhold led the study, which is published in PLOS One. She said photoluminescence in mammal fur is common.

阅读全文
2025-05-11 00:43:23动物植物
高温和干旱正在悄然损害全球作物产量

More frequent hot weather and droughts have dealt a significant blow to crop yields, especially for key grains like wheat, barley, and maize, according to a Stanford study published this week in Proceedings of the National Academy of Sciences.

阅读全文
2025-05-11 00:32:46动物植物
一种进化上保守的蛋白质可以防止染色体融合

Scientists at the Institute of Cancer Research in London and Linköping University in Sweden have discovered how cells prevent their chromosomes from mistakenly fusing together. Two proteins, TRF2 and RAP1, work together to block a repair process that woul

阅读全文
2025-05-11 00:21:44动物植物
探索用于昆虫通信的半机械人蝉生物声学调制

Researchers at the University of Tsukuba in Japan have invented a method to manipulate the musical scales of cicadas' chirps by using electrical muscle stimulation (EMS). A hybrid biological-electronic speaker was produced using live cicadas controlled t

阅读全文
 3154   首页 上一页 34 35 36 37 38 39 40 41 42 43 下一页 尾页