Nagarajan, M.Pandalai, K.M.2014-09-192014-09-192007http://hdl.handle.net/123456789/5875Several enzymes of the carbohydrase, proteinase and Upas group appear to be active in the haustorium tissues of the coconut seedlings. Some of these have been characterised and an approximate estimate of the intensity of their activity at one stage (during the sixth month after sprouting) of the seedling has been made. The following enzymes were found present -peroxidase, ascorbic acid oxidase, dehydrogenase, catalase, lipase, alkaline phosphatase, acid phosphatase, urease, sucrase, carbonic anhydrase, gluta-minase, asparaginase, aspartase and enzyme of proteolytic activity. At the sixth month stage there was high peroxidase and lipase activity in the haustorium.enArticle