Here are all the possible meanings and translations of the word heterocyst. Webster Dictionary(0.00 / 0 votes)Rate this definition: Heterocyst(noun) a cell larger than the others, and of different appearance, occurring in certain algae related to nostoc.
White distilled vinegar is a popular household cleanser, effective for killing most mold, bacteria, and germs, due to its level of acidity. Cleaning with white distilled vinegar is a smart way to avoid using harsh chemicals. Youâll also be glad to know that it is environmentally friendly and very economical. Baking soda and vinegar kills all food germs and bacteria including E-coli and salmonella, naturally and safely. I've seen a lot of references on the Internet stating that vinegar mixed with baking soda is an effective way to disinfect mold, bacteria, etc.
When vinegar reaches soil level it is quickly neutralized so that it is no longer acidic. The acetic acid in vinegar is converted to harmless acetate salts which have little effect on the weed. The weed just regrows and in a week or so, the weed is back. Vinegar is not a natural weed killer. Vinegar is about 5% acetic acid, the rest being water. Pickling vinegar is about 7% acetic acid, but even this is not strong enough to kill weeds. A higher concentration of acetic acid will kill some plants, but you need to use at least 20% acetic acid.