Unidirectional circulation in each coelenteron compartment in a primary polyp of Acropora tenuis

2010 ◽  
Vol 12 (1) ◽  
pp. 45-45 ◽  
Author(s):  
Masayuki HATTA
Keyword(s):  
Primary Polyp ◽  
Acropora Tenuis

scholarly journals Aboral localization of responsiveness to a metamorphic neuropeptide in the planula larva of Acropora tenuis

2010 ◽  
Vol 12 (2) ◽  
pp. 77-81 ◽  
Author(s):  
Kanae MATSUSHIMA ◽  
Masato KIYOMOTO ◽  
Masayuki HATTA
Keyword(s):  
Acropora Tenuis ◽  
Planula Larva

Geography and spawning season drive genetic divergence among populations of the hard coral Acropora tenuis from Indonesia and Western Australia

Coral Reefs ◽  
2020 ◽  
Vol 39 (4) ◽  
pp. 989-999 ◽  
Author(s):  
N. L. Rosser ◽  
K. Edyvane ◽  
A. C. Malina ◽  
J. N. Underwood ◽  
M. S. Johnson
Keyword(s):  
Western Australia ◽  
Genetic Divergence ◽  
Spawning Season ◽  
Hard Coral ◽  
Acropora Tenuis

Color morphs of the coral, Acropora tenuis, show different responses to environmental stress and different expression profiles of fluorescent-protein genes

2020 ◽  
Author(s):  
Noriyuki Satoh ◽  
Koji Kinjo ◽  
Kohei Shintaku ◽  
Daisuke Kezuka ◽  
Hiroo Ishimori ◽  
...  
Keyword(s):  
Fluorescent Protein ◽  
Fluorescent Proteins ◽  
Expression Profiles ◽  
Biological Significance ◽  
Gene Expression Profiles ◽  
Gfp Expression ◽  
Red Fluorescent Proteins ◽  
Color Morphs ◽  
Acropora Tenuis ◽  
Green Fluorescent

ABSTRACTCorals of the family Acroporidae are key structural components of reefs that support the most diverse marine ecosystems. Due to increasing anthropogenic stresses, coral reefs are in decline. Along the coast of Okinawa, Japan, three different color morphs of Acropora tenuis have been recognized for decades. These include brown (N morph), yellow-green (G) and purple (P) forms. The tips of axial coral polyps exhibit specific fluorescence spectra. This attribute is inherited asexually, and color morphs do not change seasonally. In Okinawa Prefecture, during the summer of 2017, the N and P morphs experienced bleaching, in which some N morphs died while P morphs recovered. In contrast, G morphs successfully withstood the stress. Symbiotic dinoflagellates are essential symbiotic partners of scleractinian corals. Photosynthetic activity of symbionts was reduced in July in N and P morphs; however, the three color-morphs host similar sets of Clade-C zoothanthellae, suggesting that beaching of N and P morphs cannot be attributed to differences in symbiont clades. The decoded Acropora tenuis genome includes five genes for green fluorescent proteins (GFP), two for cyan fluorescent proteins (CFP), three for red fluorescent proteins (RFP), and seven genes for chromoprotein (ChrP). A summer survey of gene expression profiles demonstrated that (a) expression of CFP and REP was quite low in all three morphs, (b) P morphs expressed higher levels of ChrP, (c) both N and G morphs expressed GFP highly, and (d) GFP expression was reduced in N morphs, compared to G morphs, which maintained higher levels of GFP expression throughout the summer. Although further studies are required to understand the biological significance of these color morphs of Acropora tenuis, our results suggest that thermal stress resistance is modified by genetic mechanisms that coincidentally lead to diversification of color morphs.

scholarly journals On the Hydroid of Eutima Gracilis (Forbes and Goodsir)

1949 ◽  
Vol 28 (2) ◽  
pp. 479-480 ◽  
Author(s):  
F. S. Russell
Keyword(s):  
Sea Water ◽  
Advanced Stage ◽  
Short Account ◽  
Primary Polyp ◽  
Polyp Stage

In July 1938 I succeeded in rearing the hydroid of Eutima gracilis (Forbes and Goodsir) (also known as Saphenia gracilis) from adult medusae which liberated their eggs and sperm in finger-bowls of sea water. These hydroids were only in the primary polyp stage, and I withheld publication hoping to repeat the work later and perhaps rear the hydroid to a more advanced stage. As it is unlikely that I may now have the opportunity of doing this it seems worth while to publish a short account with figures of the polyp.

Caging enhances post-settlement survival of juveniles of the scleractinian coral Acropora tenuis

2010 ◽  
Vol 394 (1-2) ◽  
pp. 149-153 ◽  
Author(s):  
Maria Vanessa B. Baria ◽  
James R. Guest ◽  
Alasdair J. Edwards ◽  
Porfirio M. Aliño ◽  
Andrew J. Heyward ◽  
...  
Keyword(s):  
Scleractinian Coral ◽  
Acropora Tenuis
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