International Journal of Scientific and Research Publications

IJSRP, Volume 5, Issue 4, April 2015 Edition [ISSN 2250-3153]


Impaired starch degradation in sapota fruit (Manilkara achras) affected by corky tissue, a physiological disorder
      Sumathi Manoharan, Seshadri Shivashankar, Sathisha G.J
Abstract: Corky tissue of sapota cv.Cricket Ball (Manilkara achras) is a major physiological disorder distinguished by the occurrence of starchy lumps coupled with lower sugar levels in ripening pulp. Since sugar content of pulp is one of the major determinants of sapota fruit quality, a reduction in sugar level in CT fruit coupled with the buildup of starch unfavorably impacts fruit quality. In view of this, the present study was carried out with the objective of determining the possible reasons for the disturbance in starch metabolism in corky tissue affected fruits of sapota. Changes in the activities of starch hydrolyzing enzymes, sugar and starch contents, and tissue concentrations of Zn and P in healthy, apparently healthy and CT affected fruit tissues were measured to assess the potential interrelationships among them. Results indicated that the activities of starch phosphorylase and α-amylase enzymes in CT pulp were significantly lower (P≤0.005) compared to AH and healthy pulp.

Reference this Research Paper (copy & paste below code):

Sumathi Manoharan, Seshadri Shivashankar, Sathisha G.J (2018); Impaired starch degradation in sapota fruit (Manilkara achras) affected by corky tissue, a physiological disorder; Int J Sci Res Publ 5(4) (ISSN: 2250-3153). http://www.ijsrp.org/research-paper-0415.php?rp=P403908
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