Question

from Which source was auxins isolated for the first time?​

Answer 1

Answer:

Kogl and Haagen-Smith first isolated naturally occurring auxin from human urine in 1931. isolated auxins were identified as Auxenotriolic acid (C18 H32 O5). Later Kogl and Haagen-Smith and Erxleben obtained another auxin in 1934.

Explanation:

Answer 2

Auxins were isolated from human urine for the first time.

• Botanist Fritz W. Went, isolated auxin for the first time from human urine.
• Auxin(Indole-3-acetic acid) was later isolated from fungi and eventually, it was isolated from higher plants.
• The function of auxin is to regulate growth in plant hormones by stimulating cell elongation in the stems of the plants.
• IAA influences this growth of stem towards the light and away from gravity.