linkedin post 2020-08-05 04:05:40

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DIFFERENT TIME SCALES. "Midwinter, and the countryside is so still, it seems almost lifeless. But these trees and bushes and grasses around me are living organisms just like animals. And they have to face very much the same sort of problems as animals face throughout their lives if they're to survive. They have to fight one another, they have to compete for mates, they have to invade new territories. But the reason that we're seldom aware of these dramas is that plants of course live on a different time-scale." (David Attenborough). https://lnkd.in/dUFDzhT View in LinkedIn
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linkedin post 2020-08-07 04:31:06

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IT IS INTERESTING how often we need to re-read Thomas Khun's book, The Structure of Scientific Revolutions. Scientists never have liked innovative and disruptive thinking, and Copernicus, Kepler, Darwin and Einstein are not alone. The list grows. A new way of looking at plants is emerging, challenging the old perception that these are essentially unsophisticated life forms. Enjoy the ride. https://lnkd.in/d5XhCtX View in LinkedIn
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linkedin post 2020-08-08 01:07:55

linkedin post 2020-08-08 01:07:55

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PARALLEL SOLUTIONS. "Seagrasses have been found to share morphological traits that distinguish them from terrestrial plants such as reduced stamen and corolla, and elongated pollen without exine walls. Except for the genus Enhalus with above-surface pollination, all of the 60 seagrass species exhibit true sub-aqueous pollination by means of filiforme pollen (hydrophily). This adaptation to a marine habitat is thus an example of morphological parallel evolution." http://bmcevolbiol.biomedcentral.com/articles/10.1186/1471-2148-11-8 View in LinkedIn
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linkedin post 2020-08-08 01:05:25

linkedin post 2020-08-08 01:05:25

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SIMILAR SOLUTIONS. "Strikingly, despite their independent evolutionary routes, seagrasses from the three different lineages have evolved many similar morphologies, life history strategies, and breeding systems. This indicates that the aquatic habitat imposes novel selection forces that can lead to parallel evolution." http://bmcevolbiol.biomedcentral.com/articles/10.1186/1471-2148-11-8 View in LinkedIn
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linkedin post 2020-08-08 01:03:18

linkedin post 2020-08-08 01:03:18

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POTASSIUM. "Key metabolic processes in the cytoplasm such as enzymatic reactions, protein synthesis, and ribosome functions rely on K+ as a co-factor. An increased level of Na+ creates a competing environment for K+ binding sites and thus decreases efficiency of these processes. Moreover, detrimental effects can propagate from the cytoplasmic compartment into the chloroplasts, leading to a decreased efficiency of photosynthesis which in turn impairs growth." http://bmcevolbiol.biomedcentral.com/articles/10.1186/1471-2148-11-8 View in LinkedIn
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linkedin post 2020-08-08 01:01:02

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FRAGMENT FROM NATURE continues from last weekend and concludes this weekend on the theme of the return of some land plants, seagrasses in particular, to a sea life. This evolutionary transition for plants was challenging from a biochemical and physiological perspective. Consider only how salt intolerant most land plants are. This case study of an evolutionary reversal is quite fascinating. View in LinkedIn
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