21Sep 2022 by Nigel Fleming No Comments

linkedin post 2020-10-05 00:14:40

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DROP EXPERIMENTS. "Gagliano potted fifty-six mimosa plants and rigged a system to drop them from a height of fifteen centimetres every five seconds. Each “training session” involved sixty drops. She reported that some of the mimosas started to reopen their leaves after just four, five, or six drops, as if they had concluded that the stimulus could be safely ignored. “By the end, they were completely open...They couldn’t care less anymore.” https://lnkd.in/dvFaNgd View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments
linkedin post 2020-10-04 05:11:36

linkedin post 2020-10-04 05:11:36

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PLANT TRANSLATION. “Ten PSGs were found to be ribosomal proteins involved in translation. From an evolutionary point of view, translation is an ancient cellular process, and high selection pressure is expected to act against deleterious mutations, as ribosome functioning affects virtually all cellular processes.” (PSG = positively selected genes). http://bmcevolbiol.biomedcentral.com/articles/10.1186/1471-2148-11-8 View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2020-10-05 00:12:37

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MIMOSA REACTIONS. "Disturbance causes the subleaflets to rapidly fold up along the stem of each leaflet, and even the leaflet and leaf stem to droop downwards in a matter of seconds. Recovery time is variable and leaves may take a few seconds to several minutes to re-open fully." https://lnkd.in/dH68RKn View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments
linkedin post 2020-10-04 05:09:19

linkedin post 2020-10-04 05:09:19

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FERMENTATIVE GLYCOLYSIS. “In darkness, seagrasses can even be forced to switch to fermentative metabolism. In P. oceanica, malate has previously been shown to accumulate as a consequence of anoxic conditions. Hence, the positive selection of these three glycolysis genes may be associated with seagrass-specific adaptation to anaerobiosis.” http://bmcevolbiol.biomedcentral.com/articles/10.1186/1471-2148-11-8 View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments
linkedin post 2020-10-04 05:07:46

linkedin post 2020-10-04 05:07:46

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AQUATIC PLANT GLYCOLYSIS. “With two fructose-bisphosphate aldolase enzymes and a malate dehydrogenase, the list of PSGs contains three enzymes of the glycolysis pathway. This observation may be particularly significant due to the challenges imposed by the O2 sink created by the reductive sediment leading to compensation by internal transport of oxygen from shoot to root tissues during the day cycle.” (PSG = positively selected genes). http://bmcevolbiol.biomedcentral.com/articles/10.1186/1471-2148-11-8 View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2020-10-07 03:22:29

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CONSERVED CALMODULIN (CaM). "What is really interesting about this Ca2+ sensor is that CaM is one of the most conserved Ca2+-binding proteins in eukaryotes [>70 % sequence alignment similarity between animals and plants, albeit plants have a much larger repertoire of genes coding for CaM-target proteins." https://lnkd.in/dH68RKn View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2020-10-07 03:19:35

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IN PLANTS AND ANIMALS. "Interestingly in animals, fluctuations in [Ca2+]i during learning seem to be essential in priming the organism for the formation of long-term memory, without affecting short-term memory. In plants, this same [Ca2+]i system is already known to contribute to the formation of stress imprints and may be responsible for the long-term memory we observed in Mimosa." https://lnkd.in/dH68RKn View in LinkedIn
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