2025-01-20 20:44:32动物植物
细菌使用令人惊讶的反导弹防御系统来抵御病毒

Imagine a city under constant threat from invaders. The city's defense system deploys a sophisticated anti-missile defense mechanism to neutralize threats before they can cause harm. In the microscopic world, bacteria face a similar scenario. For every b

阅读全文
2025-01-20 20:30:08动物植物
了解病原体和寄生虫——以及地球的未来

It's all connected: coronaviruses and other emerging infectious diseases, loss of biodiversity, and destruction of the environment by humans. Around the world, pathogens and parasites are responding to the changes in unexpected ways, fueling the rise of

阅读全文
2025-01-20 20:18:10动物植物
微生物细胞工厂可能有助于找到研究不足的植物分子的根源

A team of researchers co-led by the University of California San Diego has developed a method to produce a special class of plant hormones, known as strigolactones, at unprecedented levels using microbial cell factories. By amplifying the production of st

阅读全文
2025-01-20 20:07:57动物植物
高分辨率成像揭示酵母细胞中的核糖体动力学

Ribosomal translation is the process by which cells synthesize proteins based on the genetic instructions encoded in messenger RNA. It is essential for life, yet it is an incredibly complex process involving multiple steps and the precise coordination of

阅读全文
2025-01-20 19:56:55动物植物
预警系统允许细菌提前形成保护性生物膜

University of Basel researchers have discovered that bacteria can sense threats in advance through a general danger signal. Bacteria detect when nearby cells are dying and proactively form a protective biofilm. Understanding how bacteria communicate and r

阅读全文
2025-01-20 19:43:06动物植物
研究人员表示,盆栽橄榄树中的蛇是观赏植物贸易危害的“冰山一角”

Continental European snakes, geckos and Italian wall lizards are making their way to northern Europe undetected among imports of ornamental olive trees destined for gardens and green spaces.

阅读全文
2025-01-20 19:30:51动物植物
急性晒伤的主要原因是RNA损伤,而非DNA损伤

We have all been told to avoid direct sunlight between 12 noon and 3 p.m., seek out shade and put on sunscreen and a hat. Nevertheless, most of us have experienced sunburn at least once. The skin turns bright red, feels irritated and needs cooling.

阅读全文
2025-01-20 19:18:19动物植物
水推动细胞形成血管

Water flow plays a surprising role in the formation of new blood vessels as zebrafish develop, RIKEN researchers have discovered. This finding advances our understanding of how blood vessels sprout new branches through cell migration.

阅读全文
2025-01-20 19:03:40动物植物
幼苗洗牌:气候变暖通过改变种子萌发顺序重塑植物群落

Our world is warming, and how exactly that will affect our ecosystems is a critical question. As the climate shifts, plants and animals are already responding in some obvious ways—like your daffodils blooming a bit earlier each spring—but the finer detail

阅读全文
2025-01-20 18:51:51动物植物
在未加热的温室式高隧道系统中调查土壤、养分对有机绿叶蔬菜的影响

A recent study by scientists at the University of Florida sheds light on how soil and nutrient management practices significantly influence the productivity and quality of leafy green crops grown in high tunnel organic systems. The research provides valua

阅读全文
2025-01-20 18:38:16动物植物
外源DNA“潜入”细菌防御系统,助长抗生素耐药性

A new study by Tel Aviv University reveals how bacterial defense mechanisms can be neutralized, enabling the efficient transfer of genetic material between bacteria. The researchers believe this discovery could pave the way for developing tools to address

阅读全文
2025-01-20 18:27:57动物植物
在印度洋-太平洋中部河口发现了一条引人注目的新海鳗,以冥界之神命名

The Hades' snake moray (Uropterygius hades), a dark brown, slender snake moray eel, has chosen the road less traveled, thriving in dim and muddy river mouths, unlike most of its marine moray eel relatives. It is widely distributed across the Central Indo

阅读全文
 11855   首页 上一页 534 535 536 537 538 539 540 541 542 543 下一页 尾页