Influence of B-Vitamins, Antibiotics and Their Interactions on Some Aspects of Photosynthetic Carbon Metabolism on The Primary Leaves of Green Gram (Vigna Radiata (L.) Wilczek).

B-vitamins viz., thiamine (B₁), riboflavin (B₂), niacin (B₂), pantothenic acid (B₅) pyfidoxine (B₆) and folic acid (B₉) enhanced the rate of photosynthesis, photochemical reactions, protein, chlorophyll and dry weight. Tetracycline-inhibited photosynthesis was effectively reversed by all the B-vitamins. Penicillin promoted photosynthesis, protein, chlorophyll and dry weight and its interaction with vitamins was synergistic. Niacin and pyridoxine produced maximum increase in the photosynthetic efficiency of the leaves. These vitamins can thus act as potent activators of electron transport.