Protonema (pl. protonemata) The young bryophyte gametophyte that develops following spore germination.
苔藓植物中直
由孢子萌发形成的

为原丝体。
声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。
听力全真试题 13
们星球的秘密
听力全真试题 13
听力全真试题 13 
A number of experiments have confirmed this in recent years Plants bombarded with ultrasound in the lab have shown a range of adverse responses, including the expression of stress-related, genes, stunted, growth and reduced germination of seeds.
近年来,
系列实验已经证实
这
点。 实验室中受到超声波轰炸的植物表现出
系列不利反应,包括与压力相关的基因表达、生长受阻和种子发芽率降低。
They raised 80 bean plants, infested 40 of them with aphids two weeks after germination, and then, three days later, tested samples of the hydroponic solution of each using a process called bioassay-guided fractionation.
他们种植
80株豆类植物, 在发芽两周后让其中40株受到蚜虫侵害,然后在三天后, 使用
种称为生物测定指导分馏的过程检测
每株植物水培溶液的样本。
Thus, farmers selected from among individual plants on the basis not only of perceptible qualities like size and taste, but also of invisible features like seed dispersal mechanisms, germination inhibition, and reproductive biology.
因此,农民不仅根据大小和味道等可感知的品质,而且根据种子
播机制、发芽抑制和繁殖生物学等隐形特征来选择单个植物。