2024-07-03 14:12:40动物植物
作物连作必然会导致连作障碍吗?

Continuous cropping obstacles (CCOs) refer to the phenomenon encountered when the same crop or its related species are continuously planted on the same plot, and even under normal management conditions, the yield and quality of products are still reduced,

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2024-07-03 13:59:47动物植物
研究揭示自组织过程控制细胞运动

The UPV/EHU researcher Ildefonso Martínez de la Fuente has led an exhaustive analysis of the locomotion trajectories of 700 individual cells using advanced scientific techniques to demonstrate that their movements depend on a joint, self-organized action

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2024-07-03 13:46:11动物植物
人类如何改变岛屿鸟类群落

It is known that people have been bringing alien bird species onto islands for thousands of years, but how this has shaped the diversity of those species has just been brought to light by a study published in the journal Ecology Letters.

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2024-07-03 13:35:50动物植物
调节基因表达的新分子

The correct functioning of cells relies heavily on the ability to finely control gene expression, a complex process by which the information contained in DNA is copied into RNA to eventually give rise to all the proteins and most of the regulatory molecul

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2024-07-03 13:23:36动物植物
大豆种子硬度揭开神秘面纱:关键基因和网络被发现

Vegetable soybeans are valued for their taste and nutritional benefits, but consumer preferences for seed hardness vary across regions. Chinese consumers prefer softer seeds, while African consumers favor moderately hard seeds.

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2024-07-03 13:13:16动物植物
寻找成长与长寿之间缺失的一环

Many scientists believe that in mammals, there's a tradeoff between growth and better health. Pugs, for example, are known to live longer than their larger counterpart in the dog world, the Great Dane. But a new study shows that when more energy is alloc

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2024-07-03 13:02:26动物植物
蚂蚁进行截肢手术以拯救受伤的巢友

Saving lives through surgery is no longer exclusive to humans. In a study published July 2 in the journal Current Biology, scientists detail how Florida carpenter ants, a common, brown species native to its namesake, selectively treat the wounded limbs of

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2024-07-03 12:52:04动物植物
研究揭示了生物激励控制液体流动的机制

The more we discover about the natural world, the more we find that nature is the greatest engineer. Past research believed that liquids can only be transported in fixed direction in species with specific liquid communication properties, and they cannot s

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2024-07-03 12:38:11动物植物
蛋白质序列中编码的生物分子缩合物“分子腻子”特性

Biomolecular condensates are membraneless hubs of condensed proteins and nucleic acids within cells, which researchers are realizing are tied to an increasing number of cellular processes and diseases. Studies of biomolecular condensate formation have unc

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2024-07-03 12:24:48动物植物
地球氧气水平的微小变化可能引发了巨大的进化飞跃

New research provides the clearest evidence yet that the Cambrian explosion—a rapid burst of evolution 540 million years ago, could have been triggered by only a small increase in oxygen levels in Earth's atmosphere and shallow ocean waters.

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2024-07-03 12:11:40动物植物
研究阐明了藻类用来“倾听”环境的线索

Plants have long been known to release chemicals to respond to stress and relay information to their neighbors. A team of scientists from Bigelow Laboratory have shown that glaucophytes, a small group of single-celled algae distantly related to plants, ap

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2024-07-03 11:56:53动物植物
对一种常见植物酶的新理解可能有助于更好的作物管理

New findings about chitinases, enzymes found naturally in plants, could allow farmers to address fungal infections sooner and more efficiently.

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