Roots absorb nutrient ions through porins

Comments, more data?
Porins are large "tube shaped" protein molecules embedded in the cell membrane. Active transport of some ions against the concentration gradient or just to speed absorption. Passive absorption of some ions with the concentration gradient. Porins for water too, one molecule at a time.

If I remember correctly, different porins for each ion?

Porin channels have small diameter. Just wide enough to actively move one Calcium ion at a time.

But rule of thumb says, plants will non specifically absorb any molecule or ion up to a certain size. Even if they only absorb a little. Heavy metals, herbicides. Anyone know the size limit?

All I can tell you is the ideal droplet size in aeroponics is about 50 microns. Fulvic acid makes an excellent wetting agent.

Tektek said:

If I remember correctly, different porins for each ion?

But rule of thumb says, plants will non specifically absorb any molecule or ion up to a certain size. Even if they only absorb a little. Heavy metals, herbicides. Anyone know the size limit?

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Well porins are basically the individual openings between the cell walls located in the outmost layers of the roots.

Certain porins absorb different ions and some absorb the same ion as another porin, that gets very complicated and beyond my knowledge.

On different species of plants you will find unique or different sized porins. For example, marijuana is known as a container plant. This is because it will absorb heavy metals and radioactive chemicals and never release them. The porins somehow absorb these larger ions such as Hg+ or U+ and then they become logged inside the plant. I do not know if this means the porins are larger or if the ions are manipulated somehow through pH and solubility but I'll ask my plant sciences friend and see what he or his professor say about the relative size of porins, chelation of metal ions, and container absorbtion of heavy metals and radioactive elements in plants such as cannabis.

It just depends on what ion and what plant under what solution conditions(pH,EC,temp)

What are you trying to get absorbed into the plant?

They can absorb it, but not always use it. If it's too big it just passes through or is re deposited in the soil for further decomp.

Wow, gone awhile.
Just some sci stuff. wish people would stop trying to get plants to absorb things the plant does not need.

Tektek said:

Wow, gone awhile.
Just some sci stuff. wish people would stop trying to get plants to absorb things the plant does not need.

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You mean like sugars, amino acids, and vitamins? Yeah good luck convincing them.

churchhaze said:

You mean like sugars, amino acids, and vitamins? Yeah good luck convincing them.

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Amino acids enhance calcium uptake considerably, they hold the keys to the cell membrane allowing a much greater in flux than with out.
Check out Harley smith on YouTube, he speaks sense on this issue.

The Nine said:

Amino acids enhance calcium uptake considerably, they hold the keys to the cell membrane allowing a much greater in flux than with out.
Check out Harley smith on YouTube, he speaks sense on this issue.

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Harley Smith is trying to sell you amino acids. His entire line of nutrients is a rip off.

churchhaze said:

Harley Smith is trying to sell you amino acids. His entire line of nutrients is a rip off.

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Have you ever used them along side a basic nutrient?
A friend of mine is using the whole range on this grow, and I must say they are looking in fine fettle.

If you know where it's possible to buy the same ingredients at the same solubility rate but cheaper I would appreciate the source.
Thanks in advance.

cropking.

churchhaze said:

Harley Smith is trying to sell you amino acids. His entire line of nutrients is a rip off.

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Of course he is. Hes a face for NPK industries. Hes gotta eat too. I think the guy is a treasure of very valuable information and ive spoken to him and his wife several times. Privately....he will talk your ear off. Hes got a passion for horticulture for sure. You could do your garden a favor by listening to this guy. You dont have to buy the product from the company he represents.

Left turning aminos like glycine....whether aminos we put in are taken up by the plant or not is not a question anymore.

churchhaze said:

You mean like sugars, amino acids, and vitamins? Yeah good luck convincing them.

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You guys regurgitate forum nonsense and bro science. I listen to real world scientists that travel the globe searching for the latest in studies tests and the cutting edge in horticulture.

since1991 said:

You guys regurgitate forum nonsense and bro science. I listen to real world scientists that travel the globe searching for the latest in studies tests and the cutting edge in horticulture.

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can you point me to where they are i would like to get pro tips too

Youtube.....Harley Smith. Used to work for HDI in Lansing Michigan. Now works for NPK Industries....the makers of RAW Solubles. He gives a lecture thats on youtube. It is quite long...2 parts but its chocked full of cutting edge info that goes against the bullshit on the forums. He also writes articles for magazines that are just awesome. The guy knows his shit and thats an under statement.

since1991 said:

Youtube.....Harley Smith. Used to work for HDI in Lansing Michigan. Now works for NPK Industries....the makers of RAW Solubles. He gives a lecture thats on youtube. It is quite long...2 parts but its chocked full of cutting edge info that goes against the bullshit on the forums. He also writes articles for magazines that are just awesome. The guy knows his shit and thats an under statement.

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thank you im gonna check em out now thanks bud!

You will notice...the crowd listeneing to the lecture is just silent. Hardly any questions. It all just went rite over thier heads. These are your typical cannabis growers in my experience.

churchhaze said:

You mean like sugars, amino acids, and vitamins? Yeah good luck convincing them.

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I remember growing w out those and n-p-k boosters. I sure don't miss those days, under 1.5 per light. Now with all those things they "don't" need it's over 2 every time.

Guess you "don't need" a motor vehicle to go across country since we have feet but they make it so much better.
10000000 ways to grow, choose 1 and dial it in

I grow in coco coir. Using humic and amino acid in the reservoir and as foliar sprays my calcium magnesium and iron uptake problems are a thing of the past. I have a bottle of calmag always but it hardly gets used anymore.