我要写书评 The Evolution of Plant Life; Lower Forms的书评 ··· ( 全部0 条 ) 论坛 ··· 在这本书的论坛里发言 + 加入购书单 谁读这本书? ··· 二手市场 ··· 在豆瓣转让 手里有一本闲着? 订阅关于The Evolution of Plant Life; Lower Forms的评论: feed: rss 2.0© 2005...
The oldest of these, including a plant called Aglaophyton, appear to have possessed conducting cells similar to the hydroids of mosses. These ancient plants, which are sometimes called prototracheophytes, may have been an evolutionary link between the bryophytes and the true tracheophytes. Early ...
Senescence is integral to the flowering plant life-cycle. Senescence-like processes occur also in non-angiosperm land plants, algae and photosynthetic prokaryotes. Increasing numbers of genes have been assigned functions in the regulation and execution of angiosperm senescence. At the same time there h...
Between 100 million and 65 million years ago, a period known as the Late Cretaceous, angiosperms increased from less than 1 percent of flora (plant life) to well over 50 percent. Many of the modern plant families appeared during this time period. In the Early Tertiary period which followed,...
Plant adaptation to life on land included gaining the ability to obtain nutrients from barren terrestrial substrates. New work pinpoints a small, conserved genetic core with extensive rewiring of nutrient-response networks between the liverwortMarchantia polymorphaand a distant streptophyte algal relative,...
Future work on plant sexual systems should abandon the myopic view of flowers as the sole reproductive unit and begin investigations into the functional interrelations between flowers, inflorescences and plant architecture, within the broader context of life-history evolution. ...
In conclusion, the evolution of the flowering plants is a remarkable example of adaptability and diversity in plant life. Their unique reproductive organs and the ability to occupy diverse habitats have allowed them to thrive on Earth for over 100 million years. However, as climate change and hab...
图16:植物的茎中藏着运输水分和养分的导管 Figure 16: Vascular bundles in the stems of plants carry water and nutrients. 提示:大家平时经常吃到的一种小咸菜,里面往往就有这类植物。此外,这类植物还没有登上陆地,生活在海里。Hint: One type of plant that often appears in a common side dish might ...
Evolutionary origins of pseudogenes and their association with regulatory sequences in plants. Plant Cell 31, 563–578 (2019). Article CAS PubMed PubMed Central Google Scholar Wicke, S. et al. Mechanistic model of evolutionary rate variation en route to a nonphotosynthetic lifestyle in plants....
Variation and evolution of sex ratios at the northern range limit of a sexually polymorphic plant 来自 Wiley 喜欢 0 阅读量: 282 作者:SB Yakimowski,SCH Barrett 摘要: Gender strategies involve three fundamental sex phenotypes – female, male and hermaphrodite. Their frequencies in populations ...