C10-polyacetylenes as allelopathic substances in dominants in early stages of secondary succession

1980 ◽  
Vol 6 (1) ◽  
pp. 119-131 ◽  
Author(s):  
Akio Kobayashi ◽  
Shigeo Morimoto ◽  
Yoshiari Shibata ◽  
Kyohei Yamashita ◽  
Makoto Numata
Keyword(s):  
Secondary Succession ◽  
Early Stages

scholarly journals Ecology of Pioneer Species of Early Stages in Secondary Succession II

1968 ◽  
Vol 81 (956) ◽  
pp. 55-66 ◽  
Author(s):  
Ichiroku HAYASHI ◽  
Makoto NUMATA
Keyword(s):  
Secondary Succession ◽  
Pioneer Species ◽  
Early Stages

scholarly journals Do heavy-metal grassland species survive under a Scots pine canopy during early stages of secondary succession?

2015 ◽  
Vol 50 (4) ◽  
pp. 317-329 ◽  
Author(s):  
Paweł Kapusta ◽  
Grażyna Szarek-Łukaszewska ◽  
Monika Jędrzejczyk-Korycińska ◽  
Monika Zagórna
Keyword(s):  
Heavy Metal ◽  
Scots Pine ◽  
Secondary Succession ◽  
Grassland Species ◽  
Early Stages

Ecology of Pioneer Species of Early Stages in Secondary Succession I

1967 ◽  
Vol 80 (943) ◽  
pp. 11-22 ◽  
Author(s):  
Ichiroku HAYASHI ◽  
Makoto NUMATA
Keyword(s):  
Secondary Succession ◽  
Pioneer Species ◽  
Early Stages

Spherulitic crystal growth in the prodissoconch larval of Crassostrea virginica

1983 ◽  
Vol 41 ◽  
pp. 518-519
Author(s):  
George G. Cocks ◽  
Louis Leibovitz ◽  
DoSuk D. Lee
Keyword(s):  
Crystal Structure ◽  
Crassostrea Virginica ◽  
Crystal Orientation ◽  
Developmental Changes ◽  
Gastrula Stage ◽  
Orthorhombic Crystal ◽  
Orthorhombic Crystal Structure ◽  
Stages Of Growth ◽  
Early Stages ◽  
Initial Deposition

Our understanding of the structure and the formation of inorganic minerals in the bivalve shells has been considerably advanced by the use of electron microscope. However, very little is known about the ultrastructure of valves in the larval stage of the oysters. The present study examines the developmental changes which occur between the time of conception to the early stages of Dissoconch in the Crassostrea virginica(Gmelin), focusing on the initial deposition of inorganic crystals by the oysters.The spawning was induced by elevating the temperature of the seawater where the adult oysters were conditioned. The eggs and sperm were collected separately, then immediately mixed for the fertilizations to occur. Fertilized animals were kept in the incubator where various stages of development were stopped and observed. The detailed analysis of the early stages of growth showed that CaCO3 crystals(aragonite), with orthorhombic crystal structure, are deposited as early as gastrula stage(Figuresla-b). The next stage in development, the prodissoconch, revealed that the crystal orientation is in the form of spherulites.

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