Document Detail


Intracapsular algae provide fixed carbon to developing embryos of the salamander Ambystoma maculatum.
MedLine Citation:
PMID:  23038736     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Each spring, North American spotted salamander (Ambystoma maculatum) females each lay hundreds of eggs in shallow pools of water. Eggs are surrounded by jelly layers and deposited as large gelatinous masses. Following deposition, masses are penetrated by a mutualistic green alga, Oophila amblystomatis, which enters individual egg capsules, proliferates, and aggregates near the salamander embryo, providing oxygen that enhances development. We examined the effects of population density of intracapsular Oophila on A. maculatum embryos, and show that larger algal populations promote faster embryonic growth and development. Also, we show that carbon fixed by Oophila is transferred to the embryos, providing the first evidence of direct translocation of photosynthate from a symbiont to a vertebrate host.
Authors:
Erin R Graham; Scott A Fay; Robert W Sanders
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-4
Journal Detail:
Title:  The Journal of experimental biology     Volume:  -     ISSN:  1477-9145     ISO Abbreviation:  J. Exp. Biol.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0243705     Medline TA:  J Exp Biol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Temple University, PA, USA;
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