Question

what harm is caused by low ph?
So guys just solve it ​

Answer 1

Answer:

The low‐pH damage was ameliorated by the simultaneous application of calcium, indicating the involvement of a calcium‐requiring process in overcoming proton toxicity. At pH 5.0, growing roots required 25 μM of calcium to maintain elongation, and at pH 4.8 and pH 4.5 more than 250 μM and 750 μM, respectively. The low‐pH damage was ameliorated by divalent cations in the order of Ba2+≈Sr2+≥Ca2+>Mg2+. The monovalent cation K+ showed no ameliorative effect, but borate showed a strong ameliorative effect with Ca2+. These results indicate that the primary target of proton toxicity may be linked to a disturbance of the stability in the pectic polysaccharide network, where calcium plays a key role in plant roots.

Explanation: