Rubber biosynthesis in tapping panel dryness affected Hevea trees (Record no. 67476)

MARC details
000 -LEADER
fixed length control field 01803nam a2200217Ia 4500
100 ## - MAIN ENTRY--AUTHOR NAME
Personal name Krishnakumar R
245 #0 - TITLE STATEMENT
Title Rubber biosynthesis in tapping panel dryness affected Hevea trees
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Name of publisher Proceedings of IRRDB Symposium 1999, Hainan, Peoples Republic of China. pp.228-235.
520 ## - SUMMARY, ETC.
Summary, etc The activity of rubber transferase (RuT) determined in washed rubber particle (WRP) and whole latex showed a marked increase in the advanced stages of tapping panel dryness (TPD) compared to healthy and early stages of TPD. Prenyl transferase activity measured in the C-serum of latex showed a slight decrease in the early stages of TPD, but was substantially large in the advanced stages of TPD. There was a positive correlation between RuT and prenyl transferase activities. The increased activities of RuT and prenyl transferase under in vitro conditions in presence of adequate conversion of their substrates suggest the presence of a large number of small rubber particles in a given unit weight of WRP. The mean rubber particle size slightly increased in the early stages of TPD, but was smaller in the advanced stages of TPD. The mean rubber particle size was negatively correlated with RuT activity. It is suspected that both RuT and prenyl transferase remained inactive under in vivo conditions possibly due to inadequate supply of their immediate substrates. These findings are discussed in the light of our earlier results that showed enhanced respiration in the TPD affected bark tissues.
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term Hevea brasiliensis
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Topical Term Particle size
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Topical Term Prenyl transferase
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Topical Term Rubber biosynthesis
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Topical Term Rut
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Topical Term TPD
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Topical Term WRP
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Personal name Cornish K
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Personal name Jacob J
942 ## - ADDED ENTRY ELEMENTS (KOHA)
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