Category: Uncategorized

MULTIPLE PATHWAYS. "Aquatic plants are an extremely heterogeneous assemblage of species that survive in similar habitats but as a result of fundamentally different evolutionary pathways." https://lnkd.in/dAT9Bid View in LinkedIn

MULTIPLE EVENTS. "The transition to an aquatic life has been achieved by only 2% of the approximately 350,000 angiosperm species. Nevertheless, the evolutionary invasion of aquatic environments by terrestrial angiosperms is estimated to represent 50-100 independent events." https://lnkd.in/dh26Z3X View in LinkedIn

RETURN TO WATER. "The plant kingdom contains multicellular phototrophs that usually live on land. The earliest plant fossils are from terrestrial deposits, although some plants have since returned to the water." https://lnkd.in/d6dpu-q View in LinkedIn

CONFUSING. "Aquatic plants are notoriously difficult to study systematically due to convergent evolution and reductionary processes that result in confusing arrays of morphological features.” https://lnkd.in/dCDji-W View in LinkedIn

ALGAL JUMP. "Algae dominated the oceans of the precambrian time over 700 million years ago. Between 500 and 400 million years ago, some algae made the transition to land, becoming plants by developing a series of adaptations to help them survive out of the water." https://lnkd.in/d6dpu-q View in LinkedIn

CANDIDATE ALGAE. "Fossil and biochemical evidence indicates plants are descended from multicellular green algae. Various green algal groups have been proposed for this ancestral type, with the Charophytes often being prominently mentioned. Cladistic studies support the inclusion of the Charophytes (including the taxonomic order Coleochaetales) as sister taxa to the land plants." https://lnkd.in/d6dpu-q View in LinkedIn

ALGAE ANCESTORS. "Land plants, also called embryophytes, descended from freshwater algae about 480 Ma. Most of the major phylogenetic groups of land plants now have at least one high-quality draft or reference genome sequence." https://lnkd.in/dWxi2vR View in LinkedIn

PLANT TRANSITION TO DRY LAND. "Plants faced precisely the same problem: that of the pteridophytic life cycle with its free-living gametophytes and swimming sperm in need of freestanding water, being dragged from their supportive environment by the increasingly complex sporophytic adaptations to life on land." https://lnkd.in/d8znE3J View in LinkedIn

FRAGMENT FROM NATURE explores the ancient transition of plants from the water to dry land, and then those that returned to water. Those plants that re-adapted to salt water are the focus of this fragment. These transitions involved considerable changes in metabolism, in particular respiration, which involved biochemical ingenuity, and involved reproductive challenges, These changes opened up new habitats, thus expanding their territorial reach, and ultimately led to the remarkable success of plants. View in LinkedIn