Abstract
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.
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References
Boney A D 1965 Aspects of the biology of the seaweeds of economic importance;Adv. Mar. Biol. 3 105–253
Dixon P S 1958 The structure and development of the thallus in British species ofGelidium andPterocladia;Ann. Bot. London N.S. 23 353–368
Kaliaperumal N and Umamaheswara Rao M 1981 Studies on the standing crop and phycocolloid ofGelidium pusillum andPterocladia heteroplatos;Indian J. Bot. 4 91–95
Kaliaperumal N and Umamaheswara Rao M 1982 Seasonal growth and reproduction ofGelidiopsis variabilis (Greville) Schmitz;J. Exp. Mar. Biol. Ecol. 61 265–270
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 93–109
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. 30 677–690
Santelices B 1978a Multiple interaction of factors in the distribution of some Hawaiian Gelidiales (Rhodophyta);Pac. Sci. 32 119–147
Santelices B 1978b The morphological variation ofPterocladia caerulescens (Gelidiales, Rhodophyta) in Hawaii;Phycologia 17 53–59
Stewart J G 1968 Morphological variation inPterocladia pyramidale;J. Phycol. 4: 76–84
Suto S 1950 Shedding, floating and fixing of spores ofGelidium;Bull. Jpn. Soc. Sci. Fish. 15 671–673
Umamaheswara Rao M and Kaliaperumal N 1980 GenusPterocladia (Rhodophyceae) from India;Bull. Bot. Surv. India 22 109–111
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 45–53
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Kaliaperumal, N., Umamaheswara Rao, M. Seasonal growth, reproduction and spore shedding inPterocladia heteroplatos . Proc. Indian Acad. Sci. 94, 627–632 (1985). https://doi.org/10.1007/BF03053230
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DOI: https://doi.org/10.1007/BF03053230