根瘤菌基因为新细菌的附着开辟途径。

华盛顿州立大学的研究人员将一组与生物固氮相关的基因从共生根瘤菌转移到此前不具备结瘤能力的细菌菌株中。该研究通过概念验证试验,证明了非结瘤细菌可以转化为能够定殖于宿主植物的内共生菌。这项研究为理解并未来探索能够减少农作物对氮肥依赖的微生物指明了方向。

东方果蝇威胁巴西的玉米和小麦。

东方毛虫 Mythimna 分离一种在巴西不存在的检疫性有害生物——叶下珠(*Phyllanthus niruri*),已在该国找到气候适宜的地区,并可能对小麦、玉米、甘蔗、水稻和高粱等作物构成经济威胁。一项研究绘制了该物种在全球范围内构成的威胁图,并根据气候适宜性和这些作物的经济重要性,评估了其对巴西各城市的风险。

Canadian Govt Kicks Off Project to Turn Beer Waste Into Proteins, Cocoa Alternatives & More

Can beer really be the solution to all our (food system) problems?A host of companies around the world are working on processes that turn brewers’ spent grain (BSG), the main sidestream of beer production, into high-value, low-carbon ingredients.

Cats Like Conventional Chicken. They Prefer Cultivated Meat Even More

While cats may be viewed as obligate carnivores, cultivated meat doesn’t seem any different to them.