Biologia Plantarum

, 35:577 | Cite as

Physiological responses of mangrove seedling to triacontanol

  • P. Moorthy
  • K. Kathiresan
Article
Received:
Accepted:

Abstract

In viviparous hypocotyls ofRhizophora apiculata Blume the triacontanol treatment enhanced the growth of root and shoot (number of primary and secondary roots, length of roots, shoot height and biomass) protein and energy contents of leaves and roots,in vivo nitrate reductase activity, contents of chlorophylls and carotenoids in leaves as well as the amount of chlorophylls present in photosystems 1 and 2 and in the light harvesting complex of chloroplasts. These promotory effects were recorded at 40 and 80 mg m-3 triacontanol, but they decreased with increasing growth regulator concentration.

Keywords

Chlorophyll Carotenoid Diuron Nitrate Reductase Activity Light Harvesting Complex 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Abbreviations

Car

carotenoids

Chl

chlorophyll

PS1

photosystem 1

PS2

photosystem 2

LHC

light harvesting complex

NRA

nitrate reductase activity.

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Copyright information

© Institute of Experimental Botany 1993

Authors and Affiliations

  • P. Moorthy
    • 1
  • K. Kathiresan
    • 1
  1. 1.Centre of Advanced Study in Marine BiologyAnnamalai UniversityTamil NaduIndia

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