%0 Journal Article
%A Yue-Chau Wang
%A Chyi-Chaunn Chen and Yung-Reui Chen
%T Effects of Low Temperature on Plant Growth and Their Protein Patterns in Phloem Exudates of Luffa cylindrica
%D 1998
%J Taiwania
%V 43
%N 4
%P 247-260
%U https://taiwania.ntu.edu.tw/abstract/173
%X One-week-old seedlings of Kuffa cylindrica were grwon in phytotron at 15, 20, 25 and 30oC for four weeks. Growth  curves of the plant organs were compared with their weight and size dring the cultured period. Isozymes of defensive enzymes and phloem proteins were measured on electrophorogram of native gel and 2-dimentional gel, respectively. Low temperature not only retards plant growth, but also increases the ratio of root/shoot. Leaf  blades of plants grown at 25 and 30oC have typical sigmoid growth curve but with different slope factors. Plants grown at 15oC do not show the normal sigmoid curves in leaf growth.Isozyme patterns in plant grown  at 15oC are changed as follows: two minor bands in group II isozyme of  acid phosphatase were induced in cotyledons; group II isozymes of peroxidase were enhanced in hypocotyls and cotyledons; group III isozyme of acid phosphatase was induced in leaf. All isozyme patterns show the specificity in tissues and developmental stages. One of phloem proteins with molecular weight of 31.5kDa and PI at 4.9 was induced in plants grown at 15oC
%M doi:10.6165/tai.1998.43(4).247