Todd Lajeunesse
Professor of Biology
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327 Mueller Lab
University Park, PA - tcl3@psu.edu
- 814-863-2038
Research Summary
Microbial Ecology and Evolution
Huck Graduate Students
Huck Affiliations
Links
Publication Tags
Ecology Coral Reefs Anthozoa Symbiodinium Symbiosis Miozoa Coral Corals Population Genetics Dinoflagellate Endosymbionts Dinoflagellida Phylogeny Reefs Sampling Symbionts Symbiodiniaceae Symbiont Scleractinia Ribosomal Dna Genetic Markers Species Diversity New Species Internal Transcribed Spacers Coral ReefMost Recent Papers
Zooxanthellae
Todd C. LaJeunesse, 2020, Current Biology on p. R1110-R1113
Endosymbiotic dinoflagellates pump iron:differences in iron and other trace metal needs among the Symbiodiniaceae
Hannah G. Reich, Irene B. Rodriguez, Todd C. LaJeunesse, Tung Yuan Ho, 2020, Coral Reefs on p. 915-927
Cladocopium infistulum sp. nov. (Dinophyceae), a thermally tolerant dinoflagellate symbiotic with giant clams from the western Pacific Ocean
Sung Yeon Lee, Hae Jin Jeong, Todd C. Lajeunesse, 2020, Phycologia on p. 515-526
Iron availability modulates the response of endosymbiotic dinoflagellates to heat stress
Hannah Reich, Wan-Chen Tu, Irene Rodriguez, Yalan Chou, Elise Keister, Dustin Kemp, Todd Lajeunesse, Tung-Yuan Ho, 2020, Journal of phycology
Considerations for maximizing the adaptive potential of restored coral populations in the western Atlantic
Iliana B. Baums, Andrew C. Baker, Sarah W. Davies, Andréa G. Grottoli, Carly D. Kenkel, Sheila A. Kitchen, Ilsa B. Kuffner, Todd C. LaJeunesse, Mikhail V. Matz, Margaret W. Miller, John E. Parkinson, Andrew A. Shantz, 2019, Ecological Applications
Host–symbiont combinations dictate the photo-physiological response of reef-building corals to thermal stress
Kenneth D. Hoadley, Allison M. Lewis, Drew C. Wham, D. Tye Pettay, Chris Grasso, Robin Smith, Dustin W. Kemp, Todd C. Lajeunesse, Mark E. Warner, 2019, Scientific Reports
SymPortal
Benjamin C.C. Hume, Edward G. Smith, Maren Ziegler, Hugh J.M. Warrington, John A. Burt, Todd C. LaJeunesse, Joerg Wiedenmann, Christian R. Voolstra, 2019, Molecular Ecology Resources on p. 1063-1080
Photosynthesis by symbiotic sponges enhances their ability to erode calcium carbonate
Michelle Achlatis, Christine H.L. Schönberg, Rene M. van der Zande, Todd C. LaJeunesse, Ove Hoegh-Guldberg, Sophie Dove, 2019, Journal of Experimental Marine Biology and Ecology on p. 140-149
New Species of Closely Related Endosymbiotic Dinoflagellates in the Greater Caribbean have Niches Corresponding to Host Coral Phylogeny
Allison M. Lewis, Andrea N. Chan, Todd C. Lajeunesse, 2019, Journal of Eukaryotic Microbiology on p. 469-482
Systematic Revision of Symbiodiniaceae Highlights the Antiquity and Diversity of Coral Endosymbionts
Todd C. LaJeunesse, John Everett Parkinson, Paul W. Gabrielson, Hae Jin Jeong, James Davis Reimer, Christian R. Voolstra, Scott R. Santos, 2018, Current Biology on p. 2570-2580.e6
Most-Cited Papers
Systematic Revision of Symbiodiniaceae Highlights the Antiquity and Diversity of Coral Endosymbionts
Todd C. LaJeunesse, John Everett Parkinson, Paul W. Gabrielson, Hae Jin Jeong, James Davis Reimer, Christian R. Voolstra, Scott R. Santos, 2018, Current Biology on p. 2570-2580.e6
Genomes of coral dinoflagellate symbionts highlight evolutionary adaptations conducive to a symbiotic lifestyle
M. Aranda, Y. Li, Y. J. Liew, S. Baumgarten, O. Simakov, M. C. Wilson, J. Piel, H. Ashoor, S. Bougouffa, V. B. Bajic, T. Ryu, T. Ravasi, T. Bayer, G. Micklem, H. Kim, J. Bhak, T. C. LaJeunesse, C. R. Voolstra, 2016, Scientific Reports
Assessing Symbiodinium diversity in scleractinian corals via next-generation sequencing-based genotyping of the ITS2 rDNA region
Chatchanit Arif, Camille Daniels, Till Bayer, Eulalia Banguera-Hinestroza, Adrian Barbrook, Christopher J. Howe, Todd C. Lajeunesse, Christian R. Voolstra, 2014, Molecular Ecology on p. 4418-4433
A genetics-based description of Symbiodinium minutum sp. nov. and S. psygmophilum sp. nov. (dinophyceae), two dinoflagellates symbiotic with cnidaria
Todd C. Lajeunesse, John E. Parkinson, James D. Reimer, 2012, Journal of Phycology on p. 1380-1391
Host-specialist lineages dominate the adaptive radiation of reef coral endosymbionts
Daniel J. Thornhill, Allison M. Lewis, Drew C. Wham, Todd C. Lajeunesse, 2014, Evolution; international journal of organic evolution on p. 352-367
Improved resolution of reef-coral endosymbiont (Symbiodinium) species diversity, ecology, and evolution through psbA non-coding region genotyping
Todd C. LaJeunesse, Daniel J. Thornhill, 2011, PLoS One
Ecologically differentiated stress-tolerant endosymbionts in the dinoflagellate genus Symbiodinium (Dinophyceae) Clade D are different species
Todd C. Lajeunesse, Drew C. Wham, D. Tye Pettay, John Everett Parkinson, Shashank Keshavmurthy, Chaolun Allen Chen, 2014, Phycologia on p. 305-319
Species delimitation of common reef corals in the genus Pocillopora using nucleotide sequence phylogenies, population genetics and symbiosis ecology
Jorge H. Pinzón, Todd C. Lajeunesse, 2011, Molecular Ecology on p. 311-325
Microbial invasion of the Caribbean by an Indo-Pacific coral zooxanthella
D. Tye Pettaya, Drew C. Whama, Robin T. Smith, Roberto Iglesias-Prietoc, Todd C. LaJeunessea, 2015, Proceedings of the National Academy of Sciences of the United States of America on p. 7513-7518
Blind to morphology
Jorge H. Pinzón, Eugenia Sampayo, Evelyn Cox, Leonard J. Chauka, Chaolun Allen Chen, Christian R. Voolstra, Todd C. Lajeunesse, 2013, Journal of Biogeography on p. 1595-1608
News Articles Featuring Todd Lajeunesse
Sep 30, 2020
Coral’s resilience to warming may depend on iron
How well corals respond to climate change could depend in part on the already scarce amount of iron available in their environment, according to a new study led by Penn State researchers.
Full Article
Apr 22, 2020
Iron deficiency in corals?
When iron is limited, the tiny algae that live within coral cells — which can provide the majority of a coral’s nutritional needs — change how they take in other trace metals, which could have cascading effects on vital biological functions.
Full Article
Aug 20, 2019
Biology graduate student receives three awards for outstanding presentation
Penn State biology graduate student Hannah Reich has been honored with three awards for a presentation she gave at three scientific conferences during summer 2019.
Full Article
Jul 23, 2019
How to restore a coral reef
New guidelines drafted by a consortium of concerned experts could enable corals to adapt to changing environments and help restore declining coral populations in the Caribbean.
Full Article
Jun 30, 2019
Bleached Corals Compensate For Stress By Eating More Plankton
In healthy corals, symbiotic algae housed within the coral photosynthesize during the day while the coral itself feeds on zooplankton, tiny shrimp and bug-like organisms, during the night.
Full Article
Aug 13, 2018
Algae and Coral Have Been BFFs Since the Dinosaur Age
A new study shows that the relationship between coral polyps and zooxanthellae that produces colorful coral reefs began 160 million years ago.
Full Article
Aug 10, 2018
Coral reefs 'weathered dinosaur extinction'
Corals may have teamed up with the microscopic algae which live inside them as much as 160 million years ago, according to new research.
Full Article