. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. DEVELOPMENT OF HIMANTHALIA 83 TABLE I Variation of constituents during the development of young plants, 1954 Weight of plants Nitrogenous constituents Carbohydrate constituents plant plant T* * 1 plant Total Month ash Fresh Dry Total N Protein N Non- protein Volatile base Free amino Pep- tide Alginic acid Man- nitol Lami- narin Fu- coidin plant January B February B — — — — March B — —


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. DEVELOPMENT OF HIMANTHALIA 83 TABLE I Variation of constituents during the development of young plants, 1954 Weight of plants Nitrogenous constituents Carbohydrate constituents plant plant T* * 1 plant Total Month ash Fresh Dry Total N Protein N Non- protein Volatile base Free amino Pep- tide Alginic acid Man- nitol Lami- narin Fu- coidin plant January B February B — — — — March B — — — — — — — — — — — — — April B May B — — — — — — — — — — — — — June B July B August September B October B November B November R — December B — — — December R ' B = Button. R = Receptacles. Throughout the growth of the young plant the alginic acid content increases even after the production of the receptacles. The other carbohydrate substances, namely mannitol, laminarin and fucoidin gradually increase during the early months of the year, then become more concentrated during the summer months, no doubt the result of active photosynthesis. Between August and October the vegetative but- Button o—o Receptacles. O N. Please note that these images are extracted from scanned page images that may have been digitally enh


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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology