STUDIES ON POLYSACCHARIDES FROM THREE EDIBLE SPECIES OF <i>NOSTOC</i> (CYANOBACTERIA) WITH DIFFERENT COLONY MORPHOLOGIES: COMPARISON OF MONOSACCHARIDE COMPOSITIONS AND VISCOSITIES OF POLYSACCHARIDES FROM FIELD COLONIES AND SUSPENSION CULTURES

Liu, Yongding; Paulsen, Berit Smestad; Klaveness, Dag

doi:10.1046/j.1529-8817.1998.340962.x

Cited by 112 publications

(78 citation statements)

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“…Recent industrial and scientific advancements have promoted the development of an increasing number of new algae used for food, medicine, cosmetics and chemical industries (Spolaore et al 2006). Nostov sphaeroides Kützing is an edible freshwater cyanobacterium that constitutes a premium ingredient with a long history in China as both food and traditional medicine (Huang et al 1998). It is a member of the Nostocaceae family forming a thallus with large diameter.…”

Section: Introductionmentioning

confidence: 99%

Effects of light intensity and quality on phycobiliprotein accumulation in the cyanobacterium Nostoc sphaeroides Kützing

Lü

et al. 2015

Biotechnol Lett

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Objectives To assess the effects of light intensity and quality on the growth and phycobiliproteins (PBP) accumulation in Nostoc sphaeroides Kützing (N. sphaeroides). Results Dry weights, dry matter, protein, chlorophyll and PBP contents were higher under 90 lmol m -2 s -1 than under other intensities (both higher and lower). Phycocyanin and allophycocyanin increased with light intensity while phycoerythrin decreased. Fresh weights, protein and PBP contents increased at the highest rates under blue light. Red light resulted in higher values of dry matter, phycocyanin and chlorophyll a. Conclusion White light at 90 lmol m -2 s -1 or blue light 30 lmol m -2 s -1 were optimal for the growth and phycobiliprotein accumulation in N. sphaeroides.

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Section: Introductionmentioning

confidence: 99%

Effects of light intensity and quality on phycobiliprotein accumulation in the cyanobacterium Nostoc sphaeroides Kützing

Lü

et al. 2015

Biotechnol Lett

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“…To understand the initiation and subsequent development of algal crusts may be critical for the exploitation of their potential applications in desert reclamation, cAMP has been reported to be a a matforming factor in Spirulina platensis and extracellular polysaccharides may play an important role in the colony morphogenesis of Nostoc (Huang et al, 1998;Ohmori et al, 1992), but the development of algal crusts in open desert is a far more complicated process. In addition to the sophisticated biological activities, soil physicochemical properties and mineral decomposition are also involved as well as local and global climate change and weather conditions.…”

Section: Introductionmentioning

confidence: 99%

The vertical microdistribution of cyanobacteria and green algae within desert crusts and the development of the algal crusts

et al. 2003

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Substantial amounts of algal crusts were collected from five different desert experimental sites aged 42, 34, 17, 8 and 4 years, respectively, at Shapotou (China) and analyzed at a 0.1 mm microscale of depth. It was found that the vertical distribution of cyanobacteria and microalgae in the crusts was distinctly laminated into an inorganic-layer (ca.0.00-0.02 mm, with few algae), an algae-dense-layer (ca.0.02-1.0 mm) and an algae-sparselayer (ca.1.0-5.0 mm). It was interesting to note that in all crusts Scytonema javanicum Born et Flah (or Nostoc sp., cyanobacterium), Desmococcus olivaceus (Pers ex Ach., green alga) Laundon and Microcoleus vaginatus Gom. (cyanobacterium) dominated at the depth of 0.02-0.05, 0.05-0.1 and 0.1-1.0 mm, respectively, from the surface. Phormidium tenue Gom. (or Lyngbya cryptovaginatus Schk., cyanobacterium) and Navicula cryptocephala Kutz.(or Hantzschia amphioxys (Ehr.) Grun. and N. cryptocephala together, diatom) dominated at the depth of 1.0-3.0 and 3.5-4.0 mm, respectively, of the crusts from the 42 and 34 year old sites. It was apparent that in more developed crusts there were more green algae and the niches of Nostoc sp., Chlorella vulgaris Beij., M. vaginatus, N. cryptocephala and fungi were nearer to the surface. If lichens and mosses accounted for less than 41.5% of the crust surface, algal biovolume was bigger when the crust was older, but the opposite was true when the cryptogams other than algae covered more than 70%. In addition to detailed species composition and biovolume, analyses of soil physicochemical properties, micromorphologies and mineral components were also performed. It was found that the concentration of organic matter and nutrients, electric conductivity, silt, clay, secondary minerals were higher and there were more micro-beddings in the older crusts than the less developed ones. Possible mechanisms for the algal vertical microdistribtion at different stages and the impact of soil topography on crust development are discussed. It is concluded that biomethods (such as fine species distribution and biovolume) were more precise than mineralogical approaches in judging algal crust development and thus could be a better means to measure the potentiality of algal crusts in desert amelioration.Abbreviations: I.V. -Important Value; PLM -Polarizing Light Microscope; SEM -Scanning Electron Microscopy

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“…These results also suggest that organic carbon (usable) and TP were set reasonably in the initial stage of the CAES construction. Desert cyanobacteria, which excrete abundant soluble carbohydrate (Huang et al, 1998;Chen et al, 2006) have the potential for use as producers in the construction of a BLSS. Due to high resistance against adverse conditions, these organisms will likely be useful in applications in lunar and Martian bases .…”

Section: Discussionmentioning

confidence: 99%

Possible nutrient limiting factor in long term operation of closed aquatic ecosystem

Hao

Cai

et al. 2012

Advances in Space Research

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STUDIES ON POLYSACCHARIDES FROM THREE EDIBLE SPECIES OF NOSTOC (CYANOBACTERIA) WITH DIFFERENT COLONY MORPHOLOGIES: COMPARISON OF MONOSACCHARIDE COMPOSITIONS AND VISCOSITIES OF POLYSACCHARIDES FROM FIELD COLONIES AND SUSPENSION CULTURES

Abstract: Hot water-soluble polysaccharides were extracted from field colonies and suspension cultures of

Cited by 112 publications

References 20 publications

Effects of light intensity and quality on phycobiliprotein accumulation in the cyanobacterium Nostoc sphaeroides Kützing

Effects of light intensity and quality on phycobiliprotein accumulation in the cyanobacterium Nostoc sphaeroides Kützing

The vertical microdistribution of cyanobacteria and green algae within desert crusts and the development of the algal crusts

Possible nutrient limiting factor in long term operation of closed aquatic ecosystem

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