Proceedings: Plant Sciences

, Volume 94, Issue 4–6, pp 627–632 | Cite as

Seasonal growth, reproduction and spore shedding inPterocladia heteroplatos

  • N Kaliaperumal
  • M Umamaheswara Rao


Results on seasonal growth, fruiting behaviour and spore output inPterocladia heteroplatos are presented. Populations ofP. heteroplatos were recorded in all months of the year with a maximum development of plants from November to January. Tetrasporophytes occurred throughout the year without any seasonal variation in their abundance but carposporophytes were rarely found in natural population. The tetraspore and carpospore outputs ranged from 1427–7 94 055 and 39 996–1 67 040 spores/g fresh weight of the plant respectively. Seasonal changes were not found in the formation and liberation of reproductive bodies inP. heteroplatos.


Spore shedding reproduction, growth seasonal changes Pterocladia heteroplatos 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Boney A D 1965 Aspects of the biology of the seaweeds of economic importance;Adv. Mar. Biol. 3 105–253CrossRefGoogle Scholar
  2. Dixon P S 1958 The structure and development of the thallus in British species ofGelidium andPterocladia;Ann. Bot. London N.S. 23 353–368Google Scholar
  3. Kaliaperumal N and Umamaheswara Rao M 1981 Studies on the standing crop and phycocolloid ofGelidium pusillum andPterocladia heteroplatos;Indian J. Bot. 4 91–95Google Scholar
  4. Kaliaperumal N and Umamaheswara Rao M 1982 Seasonal growth and reproduction ofGelidiopsis variabilis (Greville) Schmitz;J. Exp. Mar. Biol. Ecol. 61 265–270CrossRefGoogle Scholar
  5. Matsuura S 1958 Observations on the annual growth cycle of marine algae on a reef at Mamadzuru on the Pacific coast of Japan;Bot. Mag. (Tokyo) 71 93–109Google Scholar
  6. Oliveira Filho E C De and Sazima I P 1973 Estudos sobre a biologia de algas agrofitas. I. Recolonizacao, brotamento e fenologia em populacoes naturias dePterocladia capillacea (Rhodophyta-Gelidiaceae);Bol. Zool. Biol. Mar. N.S. 30 677–690Google Scholar
  7. Santelices B 1978a Multiple interaction of factors in the distribution of some Hawaiian Gelidiales (Rhodophyta);Pac. Sci. 32 119–147Google Scholar
  8. Santelices B 1978b The morphological variation ofPterocladia caerulescens (Gelidiales, Rhodophyta) in Hawaii;Phycologia 17 53–59Google Scholar
  9. Stewart J G 1968 Morphological variation inPterocladia pyramidale;J. Phycol. 4: 76–84CrossRefGoogle Scholar
  10. Suto S 1950 Shedding, floating and fixing of spores ofGelidium;Bull. Jpn. Soc. Sci. Fish. 15 671–673Google Scholar
  11. Umamaheswara Rao M and Kaliaperumal N 1980 GenusPterocladia (Rhodophyceae) from India;Bull. Bot. Surv. India 22 109–111Google Scholar
  12. Umamaheswara Rao M and Kaliaperumal N 1983 Effects of environmental factors on the liberation of spores from some red algae of Visakhapatnam coast;J. Exp. Mar. Biol. Ecol. 70 45–53CrossRefGoogle Scholar

Copyright information

© Indian Academy of Sciences 1985

Authors and Affiliations

  • N Kaliaperumal
    • 2
  • M Umamaheswara Rao
    • 1
  1. 1.Department of BotanyAndhra UniversityWaltairIndia
  2. 2.Regional Centre of Central Marine Fisheries Research Institute, Marine FisheriesNaduIndia

Personalised recommendations