What are the symptoms of molybdenum deficiency ?

Molybdenum deficiency include chlorotic interveinal mottling of the lower leaves, followed by marginal necrosis and in
folding of the leaves. In cauliflower, the leaf tissues wither leaving only the midrib and a few small pieces of leaf blade(“whiptail”).

Molybdenum deficiency is markedly evident in leguminous plants. Without sufficient molybdenum plants accumulate nitrate in their leaves, but cannot use it to make proteins for normal growth. The plant becomes stunted  and the leaves show symptoms of nitrogen deficiency, appearing pale green or yellowish green in colour between the veins .