Did67 wrote:Julienmos wrote:
if you could give us your opinion on K Schreiber's video by JP Bord (plants grow alone)...
I looked at it, but with KS it's always the same: hang on to pick!
I'll watch that too!
KS is a bit, like me, "big mouth" and therefore, from time to time, like me, makes presentations with "shock images" ... When you want to "deconstruct" received ideas in a limited time ( "man has always plowed", "'if the land is not worked, it does not grow"; "without fertilization, it will be skinny ..."), we do not really have the choice of shade , there is so much resistance. But I've also seen one go astray (at least seriously exaggerate a point of view).
Well, I have to correct myself. He may be like me, a little big mouth, but now, I think he wants to play the inventor of genius. It's dangerous. It is not given to everyone to write E = mc² without being wrong!
I am willing to question some fundamentals, but still. One must know reason to keep. Or we may end up like Kervran or Summerlin: mystifying!
View:
https://www.pseudo-sciences.org/spip.php?article2195https://www.la-croix.com/Ethique/Scienc ... -22-989339Kervran still having a few followers, I hasten to point out that I do not believe for a second in "low energy" transmutation ... I dare not imagine what the world would be like, since 3,4 or 3,7 billion d years, if organisms had so easily succeeded in "transmuting" the elements! Let's be reasonable from time to time!
If the intro of KS evokes this to me, it is because from the start it starts strong:
- "plants eat meat", on the grounds that they absorb amino acids.
To that two or three remarks:
a) the plants existed before the animals
b) the living, if it evolves, generally keeps track and continues to exploit the "working mechanisms": photosynthesis (for more than 2 billion years), mycorrhizal symbiosis (for 370 million years)
so a) + b): why would they have changed abruptly?
c) there are undoubtedly amino acids that are absorbed, and even polypeptides (small chains of amino acids, too small to be proteins); I am not aware of serious studies that would show that this is
masses significant; we are probably more in the exchange of messages than in the construction of biomass ... The biochemical mechanisms allowing plant cells to transform amminium ions into -NH² radicals to form amino acids are well known, enzymes, and all and all. everything ... Plants would have all this inheritance (genetic codes) only to poison themselves ??? Sometimes it is necessary to be right and to look at the "logic of the living"!
d) think that the plants would have switched to the side of heterotrophs (because that is what it would mean) is at least daring ... Think Marc-Andre Selosse who track these exchanges, with means of analysis of true labs (many - and which identify the polypeptides that allow a plant to cause symbiosis with a glomeromycete), would have seen nothing is presumptuous ...
e) finally, if it was the case, I say "if" and I do not believe it for a second, the amino acids exist as much in the plant world, in the same form; why then "provoke" stupidly by asserting that meats feed on meat ... [it is marked on the slide!] For him, amino acids = meat ??? It is because he is more zero in organic chemistry than an S terminal. And of course, convinced of the rapid death of all Vegans!
f) to affirm that the C comes from the ground is abracadabrantesque: the C used by the living one comes from CO² initially present in the terrestrial atmosphere (which contained then 20 or 25% - I did not check the figure from where the fork that I give); autotrophs (photosynthetic bacteria, algae, plants, etc.) have transformed it, thanks to solar energy, into organic molecules, some of which, in fact, are stored in a stable form - humic substances; others make a short pass, before mineralization ... So there is C in the soil, from plants that grew previously ...
For nitrogen, it is correct that it comes from the air, captured by free or associated fixing bacteria, or from numerous recycling processes (including urine - I am not talking about urine for earthworms, because rather they "sweat" ammonia through their skin, recycling their proteins), or from chemical synthesis by humans (negrais) or some natural chemical reactions (such as the formation of saltpeter - potassium nitrate - which forms naturally in damp walls) ...
In short, I quickly dropped out and dropped. So it was anything. And I do not see the point of losing my time.
It just lacks rigor. And a global reflection on the "meaning of the living". I think that there, we fell into turmoil.
) 
, and it is always more dangerous to go wrong, so when you publish what people want to hear it always goes better
