Physiological characteristics of crab Portunus sanguinolentus egg mass extract from southeast coast of India

2014 ◽  
Vol 0 (0) ◽  
Author(s):  
Subramanian Bragadeeswaran ◽  
Nadarajah Sri Kumaran ◽  
Lakshmanan Pandimuthu ◽  
Rajagopal Prabahar
Keyword(s):  
Physiological Characteristics ◽  
Egg Mass ◽  
Cytotoxic Activities ◽  
Egg Masses ◽  
Southeast Coast Of India ◽  
Standard Methods ◽  
Southeast Coast ◽  
Antimicrobial Assay

AbstractThe present investigation was undertaken to evaluate the physiological characteristics of crab egg mass (Assays were followed by standard methods.A maximum of 256 hemolytic units (HU) and a minimum of 128 HU were found in chicken and goat erythrocytes. In an antimicrobial assay,The results indicate that crab egg masses have remarkable antimicrobial, hemolytic and cytotoxic activities.

Diversity of filamentous fungi on coastal woody debris after tsunami on the southeast coast of India.

2009 ◽  
Vol 61 (1) ◽  
pp. 107-115 ◽  
Author(s):  
Mathrubutham Ravikumar ◽  
Kandikere R. Sridhar ◽  
Thangaraju Sivakumar ◽  
Kishore S. Karamchand ◽  
Nallusamy Sivakumar ◽  
...  
Keyword(s):  
Filamentous Fungi ◽  
Woody Debris ◽  
Southeast Coast Of India ◽  
Southeast Coast

Shoreline changes over last five decades and predictions for 2030 and 2040: a case study from Cuddalore, southeast coast of India

2021 ◽  
Author(s):  
Logesh Natarajan ◽  
Nagulan Sivagnanam ◽  
Tune Usha ◽  
Lakshumanan Chokkalingam ◽  
Sajimol Sundar ◽  
...  
Keyword(s):  
Southeast Coast Of India ◽  
Shoreline Changes ◽  
Southeast Coast

Occurrence of tumour (odontoma) in marine fish Sphyraena jello from the southeast coast of India

2014 ◽  
Vol 108 (1) ◽  
pp. 53-60 ◽  
Author(s):  
R Vijayakumar ◽  
A Gopalakrishnan ◽  
K Raja ◽  
K Sinduja
Keyword(s):  
Marine Fish ◽  
Southeast Coast Of India ◽  
Southeast Coast

scholarly journals New terpenoid metabolites from the skin extracts, an egg mass, and dietary sponges of the Northeastern Pacific dorid nudibranch Cadlinaluteomarginata

1997 ◽  
Vol 75 (6) ◽  
pp. 773-789 ◽  
Author(s):  
Eric J. Dumdei ◽  
Julia Kubanek ◽  
John E. Coleman ◽  
Jana Pika ◽  
Raymond J. Andersen ◽  
...  
Keyword(s):  
Structure Elucidation ◽  
Egg Mass ◽  
The Novel ◽  
Egg Masses ◽  
Northeastern Pacific ◽  
First Time

Chemical investigations of Cadlinaluteomarginata skin extracts, egg masses, and dietary sponges have led to the identification of the novel terpenoids cadlinaldehyde (30), spongian 32, seco-spongian 35, 20-acetoxy-12-marginatone (38), and lutenolide (39) from the nudibranch skin extracts, the new drimane sesquiterpenoid 1α,2α-diacetoxyalbicanyl acetate (40) from the nudibranch's egg mass, and the new sesquiterpenoids O-methyl-9-oxofurodysininlactone (47), 2-oxomicro-cionin-2-lactone (48), and O-methyl-2-oxomicrocionin-2-lactone (49), from the dietary sponge Pleraplysilla sp. The known terpenoids furodysinin (1), furodysin (16), marginatafuran (21), and 9,11-dihydrogracillin A (37), which have been frequently isolated from C. luteomarginata skin extracts, were found for the first time in extracts of the dietary sponges Pleraplysilla sp. and Aplysilla sp. One of the new terpenoids, cadlinaldehyde (30), has an unprecedented degraded sesterterpenoid skeleton. Keywords: nudibranch, sponge, terpenoids, structure elucidation.

GROUND RELEASES OF TRICHOGRAMMA MINUTUM RILEY (HYMENOPTERA: TRICHOGRAMMATIDAE) AGAINST THE SPRUCE BUDWORM (LEPIDOPTERA: TORTRICIDAE)

1987 ◽  
Vol 119 (3) ◽  
pp. 251-263 ◽  
Author(s):  
S.M. Smith ◽  
M. Hubbes ◽  
J.R. Carrow
Keyword(s):  
Optimal Strategy ◽  
Choristoneura Fumiferana ◽  
Spruce Budworm ◽  
Egg Mass ◽  
Northern Ontario ◽  
Inundative Release ◽  
Egg Masses ◽  
Trichogramma Minutum ◽  
Spruce Stands ◽  
Natural Parasitism

AbstractDuring 1982 and 1984, ground releases of Trichogramma minutum Riley were assessed for control of the spruce budworm, Choristoneura fumiferana (Clemens), on 12- to 20-year-old, white spruce stands in northern Ontario. Maximum parasitism of susceptible egg masses was 16 and 87% following the release of 480 000 and 12 million female T. minutum per hectare, respectively. Releases at intervals of 1 week maintained parasitism of susceptible egg masses at constant levels throughout the oviposition period of spruce budworm. When parasitism of susceptible egg masses was maintained above 78.2% during the ovipositional period, total egg mass parasitism averaged 58.0% and resulted in an 80.3% reduction of overwintering 2nd-instar larvae. The optimal strategy for reducing spruce budworm was two releases of T. minutum at an interval of 1 week in the ovipositional period. This allowed a second generation of parasitoids to emerge from the spruce budworm eggs that were more efficient in maintaining high levels of parasitism than those emerging from the standard rearing host. Natural parasitism of spruce budworm egg masses was less than 4% and there was no carryover of parasitism in the years following inundative release. The rate of T. minutum release necessary to achieve effective mortality of spruce budworm during outbreak populations is discussed briefly.

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