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 in press |
| Chikaraishi, Y. (2013) 13C/12C Signatures in Plants and Algae. Treatise on Geochemistry, 10: Organic Geochemistry (Edited by Birrer, B., Falkowski, P., Freeman, K.), Elsevier, in press. |
| 2013 |
| Naito, Y., Chikaraishi, Y., Ohkouchi, N., and Yoneda, M. (2013) Evaluation of carnivory in inland
Jomon hunter-gatherers based on nitrogen isotopic compositions of individual
amino acids in bone collagen. Journal of Archaeological Science, 40(7), 2913-2923. Journal's web site |
| 2012 |
| Aoyagi, K., Yamanaka, A., Goto, A.S., Fujino, T., Korenaga, T., and Chikaraishi, Y. (2012) Methyl and ethyl chloroformate derivatizations for compound-specific
stable isotope analysis of fatty acids-II. Researches in Organic Geochemistry, 28, 27-30. |
Chikaraishi, Y., Kaneko, M., and Ohkouchi, N. (2012) Stable hydrogen and carbon isotopic
compositions of long-chain (C21-C33) n-alkanes and n-alkenes in insects. Geochimica et Cosmochimica Acta, 95(15), 53-62. Journal's web site
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| Maeda, T., Hirose, E., Chikaraishi, Y., Takishita, K., Yoshida, T., Verbruggen, H., Tanaka, J., Shimamura, S., Takai, Y., Tsuchiya, M., Iwai, K., and Maruyama, T. (2012) Algivore or phototroph? Plakobranchus ocellatus (Gastropoda) continuously acquires kleptoplasts and nutrition from multiple algal species in nature. PLoS ONE, 7(7): e42024, DOI:10.1371/journal.pone.0042024. Journal's web site |
| Miller, M.J., Chikaraishi, Y., Ogawa, N.O., Yamada, Y., Tsukamoto, K., and Ohkouchi, N. (2012) A low
trophic position of Japanese eel larvae indicates feeding on marine snow.
Biology Letters, DOI:10.1098/rsbl.2012.0826. Journal's web site |
| Ogawa, N.O., Chikaraishi, Y., and Ohkouchi, N. (2012) Trophic position estimates of formalin-fixed
samples with nitrogen isotopic compositions of amino acids: an application
to gobiid fish (Isaza) in Lake Biwa, Japan. Ecological Research, DOI:10.1007/s11284-012-0967-z. Journal's web site |
| Ohkouchi N., Tsuda R., Chikaraishi Y., and Tanabe K. (2012) A preliminary estimate of the trophic position of
the deep-water ram’s horn squid Spirula spirula based on the nitrogen isotopic
composition of amino acids. Marine Biology, DOI:10.1007/s00227-012-2132-1. Journal's web site |
| Sachse, D., Billault, I., Browen, G.J., Chikaraishi, Y., Dawson, T.E., Feakins, S.J., Freeman, K.H., Magill, C.R., McInerney,
F.A., van der Meer, M.T.J., Polissar, P., Robins, R.J., Sachs, J.P., Schmidt,
H.-L., Sessions, A.L., White, J.W.C., West, J.B., and Kahmen, A. (2012)
Molecular palephydrology: Interpreting the hydrogen-isotopic composition
of lipid biomarkers from photosynthesizing organisms. Annual Review of Earth and Planetary Sciences, 40, 221-249. Journal's web site |
| Takahashi, Y., Sasaki, Y., Chikaraishi, Y., Tsuchiya, M., Watanabe, H., Asahida, T., Maruyama, T., and Fujikura,
K. (2012) Does the symbiotic scale-worm feed on the host mussel in deep-sea
vent fields? Researches in Organic Geochemistry, 28, 23-26. |
| Takishita, K., Chikaraishi, Y., Leger, M., Kim, E., Yabuki, A., Ohkouchi, N., and Roger, A.J. (2012)
Lateral transfer of tetrahymanol-synthesizing genes has allowed multiple
diverse eukaryote lineages to independently adapt to environments without
oxygen. Biology Direct,
7(5), DOI:10.1186/1745-6150-7-5. Journal's web site |
| 2011 |
Chikaraishi, Y., Ogawa, N.O., Doi, H., and Ohkouchi, N. (2011) 15N/14N ratios of amino acids as a tool for studying terrestrial food webs: a
case study of the terrestrial insects (bees, wasps, and hornets). Ecological Research, 26(4), 835-844, DOI:10.1007/s11284-011-0844-1. Journal's web site
|
Goto, A.S., Korenaga, T., and Chikaraishi, Y. (2011) Methyl (MCF) and ethyl chloroformate (ECF) derivatizations for
compound-specific stable isotope analysis (CSIA) of fatty acids. Researches in Organic Geochemistry, 27, 91-95. Journal's web site
|
Strable, M.S., Tschanz, C.L., Varamini, B., Chikaraishi Y., Ohkouchi, N., and Brenna, J.T. (2011) Mammalian DNA δ15N exhibits 40‰ intramolecular
variation and is unresponsive to dietary protein level. Rapid communications in Mass Spectrometry, 25, 3555-3563. Journal's web site
|
Zhou, Y., Grice, K., Chikaraishi, Y., Stuart-Williams, H. Farquhar G.D., and Ohkouchi, N. (2011) Temperature effect on leaf water deuterium enrichment and isotopic fractionation during leaf lipid biosynthesis: Results from controlled growth of C3 and C4 land plants. Phytochemistry, 72, 207-213. Journal's web site
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| 2010 |
Akamatsu, F., Yamamoto, M., Chikaraishi, Y., and Toda, H. (2010) Evaluation of algal contribution to aquatic insects
based on 13C/12C and C/N ratios. Researches in Organic Geochemistry, 26, 107-114. Journal's web site
|
Naito, Y., Chikaraishi, Y., Ohkouchi, N., Mukai, H., Shibata, Y., Honch, N. V., Dodo, Y., Ishida,
H., Amano, T., Ono, H., and Yoneda, M. (2010) Dietary reconstruction of
the Okhotsk Culture of Hokkaido, Japan, based on nitrogen isotopic composition
of amino acids: implication for correction of 14C marine reservoir effects
on human bones. Radiocarbon, 52, 671-681. Journal's web site
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Naito, Y., Honch, N V., Chikaraishi, Y., Ohkouchi, N., and Yoneda, M. (2010) Quantitative evaluation of marine
protein contribution in ancient diets based on nitrogen isotope ratios
of individual amino acids in bone collagen: An investigation at the Kitakogane
Jomon site. American Journal of Physical Anthropology, 143, 31-40. Journal web site
|
Sonoda, K., Takahashi, M., Chikaraishi, Y., and Yammamoto, S. (2010) Compound-specific stable carbon isotope analysis of lignin phenols by gas chromatography/combustion/isotope ratio mass spectrometry (GC/C/IRMS). Researches in Organic Geochemistry, 26, 115-122. Journal's web site
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Takano, Y., Chikaraishi, Y., Ogawa, N.O., Nomaki, H., Morono, Y., Inagaki, F., Kitazato, H., Hinrichs, K.-U., and Ohkouchi, N. (2010) Sedimentary membrane lipids recycled by deep-sea benthic archaea. Nature Geosciences, 3, 858-861. Journal's web site
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Takano, Y., Kashiyama, Y., Ogawa, O.N., Chikaraishi, Y., and Ohkouchi, N. (2010) Isolation and desalting with cation-exchange
chromatography for compound-specific nitrogen isotope analysis of amino
acids. Rapid Communications in Mass Spectrometry, 24, 2317-2323. Journal's web site
|
Tyler, J., Kashiyama, Y., Ohkouchi, N., Ogawa, N. O , Yokoyama, Y., Chikaraishi, Y., Staff, R. A., Ikehara, Bronk Ramsey, C., Bryant, C., Brock, F., Gotanda,
K., Haraguchi, T., Yonenobu, H., and Nakagawa, T. (2010) Tracking aquatic
change using chlorin-specific carbon and nitrogen isotopes: The last glacial-interglacial
transition at Lake Suigetsu, Japan. Geochemistry Geophysics Geosystems, 11, Q09010, DOI:10.1029/2010GC003186. Journal's web site
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| 2009 |
Chikaraishi, Y., Ogawa, N.O., Kashiyama, Y., Takano, Y., Suga, H., Tomitani, A., Miyashita, H., and Ohkouchi, N. (2009) Determination of aquatic food-web structure based on compound-specific nitrogen isotopic composition of amino acids. Limnology and Oceanography: Methods., 7, 740-750. Journal's web site
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Chikaraishi, Y., Tanaka, R., Tanaka, A., and Ohkouchi, N. (2009) Fractionation of hydrogen isotopes in phytol biosynthesis. Organic Geochemistry, 40, 569-573. Journal's web site
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Nomaki, H., Ohkouchi, N., Heinz, P., Suga, H., Chikaraishi, Y., Ogawa, N.O., Matsumoto, K., and Kitazato, H. (2009) Degradation of algal
lipids by deep-sea benthic foraminifera: An in situ tracer experiment.
Deep-Sea Research I, 56, 1488-1503. Journal web site
|
Takano, Y., Chikaraishi, Y., Ogawa, N. O., Kitazato, H., and Ohkouchi, N. (2009) Compound-specific
nitrogen isotope analysis of D-alanine, L-alanine, and valine: Application
of diastereomer separation to δ15N and microbial peptidoglycan studies. Analytical Chemistry, 81, 394-399. Journal web site
|
| 2008 |
| Chikaraishi, Y., Kashiyama, Y., Ogawa, N.O., Kitazato, H., Satoh, M., Nomoto, S., and
Ohkouchi, N. (2008) A compound-specific isotope method for measuring the
stable nitrogen isotopic composition of tetrapyrroles. Organic Geochemistry, 39, 510-520. Journal's web site |
| Jenkins, R.G., Hikida, Y., Chikaraishi, Y., Ohkouchi, N., and Tanabe, K. (2008) Microbially induced formation of ooid-like coated grains in the Late Cretaceous methane-seep deposits of the Nakagawa area, Hokkaido, northern Japan. Island Arc, 17, 261-269. Journal's web site |
| Kashiyama, Y., Miyashita, H., Ogawa, N.O., Chikaraishi, Y., Takano, Y., Suga, H., Toyofuku, T., Nomaki, H., Kitazato, H., Nagata, T., and Ohkouchi, N. (2008) Evidence of global chlorophyll d. Science, 321, 658. Journal web site |
| Nakashita, R., Suzuki, Y., Akamatsu, F., Iizumi, Y., Korenaga, T., and
Chikaraishi, Y. (2008) Stable carbon, nitrogen, and oxygen isotope analysis as a potential tool for verifying geographical origin of beef. Analytica Chimica Acta, 617, 148-152. Journal's web site |
| Ohkouchi, N., Nakajima, Y., Ogawa, N.O., Chikaraishi, Y., Suga, H., Sakai, S., and Kitazato, H. (2008) Carbon isotopic composition of the tetrapyrrole nucleus in chloropigments from a saline meromictic lake: A mechanistic view for interpreting the isotopic signature of alkyl porphyrins in geological samples. Organic Geochemistry, 39, 521-531. Journal's web site |
| Suzuki, Y., Chikaraishi, Y., Ogawa, N. O., Ohkouchi, N., and Korenaga, T. (2008) Geographical origin of polished rice based on stable isotope analyses. Food Chemistry, 109, 470-475. Journal web site |
| 2007 |
Chikaraishi, Y., Kashiyama, Y., Ogawa, N. O., Kitazato, H., and Ohkouchi,
N. (2007) Metabolic control of nitrogen isotopic composition of amino acids in
macroalgae and gastropods: implications for aquatic food web studies. Marine
Ecology Progress Series, 342, 85-90. Journal
web site
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| Chikaraishi, Y., Matsumoto, K., Kitazato, H., and Ohkouchi, N. (2007) Sources and transformation
processes of pheopigments: Stable carbon and hydrogen isotopic evidence
from Lake Haruna, Japan. Organic Geochemistry, 38, 985-1001. Journal web site |
| Chikaraishi, Y., and Naraoka, H. (2007) δ13C and δD relationships among three n-alkyl compound classes (n-alkanoic
acid, n-alkane and n-alkanol) of terrestrial higher plants. Organic Geochemistry , 38, 198-215. Journal's web site |
| 2006 |
| Chikaraishi, Y. (2006) Carbon and hydrogen isotopic composition of sterols in natural marine brown and red macroalgae, and in associated shellfish. Organic Geochemistry, 37, 428-436. Journal's web site |
| Chikaraishi, Y., and Naraoka, H. (2006) Carbon and hydrogen isotope variation of plant biomarker in a plant-soil-system. Chemical Geology, 231, 190-202. Journal's web site |
Rommerskirchen, F., Plader, A., Eglinton, G., Chikaraishi, Y., and Rulkötter, J. (2006) Chemotaxonomic significance of distribution
and stable carbon isotopic composition of ling-chain alkanes and alkan-1-ols
in C4 grass waxes. Organic Geochemistry, 37, 1303-1332. Journal's web site
|
Suzuki, Y., Ishioka, S., Korenaga, T., and Chikaraishi, Y. (2006) Novel method to identify illegal diesel fuel, I: use of adamantane or [1, 2-D2] n-tetradecane as chemical marker. Environmental Science, 13, 207-212. Journal's web site
|
Suzuki, Y., Korenaga, T., and Chikaraishi, Y. (2006) A novel method to identify illegal diesel fuel, II: the use of
[1-D] n-alkane with stable hydrogen isotope analysis. Chemistry Letters, 35, 532-533. Journal's web site
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| 2005 |
Chikaraishi, Y., Matsumoto, K., Ogawa, N.O., Suga, H., Kitazato, H., and Ohkouchi, N. (2005) Hydrogen, carbon and nitrogen isotopic fractionations during chlorophyll biosynthesis in C3 higher plants. Phytochemistry, 66, 911-920. Journal's web site
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Chikaraishi, Y. and Naraoka, H. (2005) δ13C and δD identification of sources of lipid biomarkers in sediments of Lake Haruna (Japan). Geochimica et Cosmochimica Acta, 69, 3285-3297. Journal's web site
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Chikaraishi, Y., Yamada, Y., and Naraoka, H. (2005) Carbon and hydrogen isotope compositions of sterols from riverine and marine sediments. Limnology and Oceanography, 50, 1763-1770. Journal's web site
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| 2004 |
Chikaraishi, Y., Naraoka, H., and Poulson, S.R. (2004) Carbon and hydrogen isotopic fractionation during lipid biosynthesis in a higher plant (Cryptomeria japonica). Phytochemistry. 65, 323-330. Journal's web site
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Chikaraishi, Y., Naraoka, H., and Poulson, S.R. (2004) Hydrogen and carbon isotopic fractionations of lipid biosynthesis among terrestrial (C3, C4 and CAM) and aquatic plants. Phytochemistry, 65, 1369-1381. Journal's web site
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Chikaraishi, Y., Suzuki, Y., and Naraoka, H. (2004) Hydrogen isotopic fractionations during desaturation and elongation associated with polyunsaturated fatty acid biosynthesis in marine macroalgae. Phytochemistry, 65, 2293-2300. Journal's web site
|
| 2003 |
Chikaraishi, Y. and Naraoka, H. (2003) Compound-specific δD-δ13C analyses of n-alkanes extracted from terrestrial and aquatic plants. Phytochemistry, 63, 361-371. Journal's web site
|
| 2001 |
Chikaraishi, Y. and Naraoka, H. (2001) Organic hydrogen-carbon isotope signatures of terrestrial higher plants during biosynthesis for distinctive photosynthetic pathways. Geochemical Journal, 35, 451-458. Journal's web site
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Chikaraishi, Y. and Ohkouchi, N. (2010) An improved method for precise determination of
carbon isotopic composition of amino acids. Earth, Life, and Isotopes, Kyoto University Press, p.355-366. Journal web site
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Chikaraishi, Y., Ogawa, N.O., and Ohkouchi, N. (2010) Further evaluation
of the trophic level estimation based on nitrogen isotopic composition of amino
acids. Earth, Life, and Isotopes, Kyoto University Press, p.37-51.
|
Chikaraishi, Y., Takano, Y., Ogawa, N.O., and Ohkouchi, N. (2010)
Instrumental optimization for compound-specific nitrogen isotope analysis of
amino acids by gas chromatography/combustion/isotope ratio mass spectrometry.
Earth, Life, and Isotopes, Kyoto University Press, p.367-386.
|
Kashiyama, Y., Ogawa, N.O., Chikaraishi, Y., Kashiyama, N., Sakai, S.,
Tanabe, K., and Ohkouchi, N. (2010) Reconstructing the life history of modern
and fossil nautiloids based on the nitrogen isotopic composition of shell
organic matter and amino acids. Cephalopods - Present and Past, Tokai
University Press, Tokyo, p.67-75. Journal web site
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Ohkouchi, N., Chikaraishi, Y., Kashiyama, Y., and Ogawa, N.O. (2010)
Isotopomer of chlorophyll nucleus: Theories and an application. Earth, Life,
and Isotopes, Kyoto University Press, p.271-290.
|
Takano, Y., Chikaraishi, Y., and Ohkouchi, N. (2010) Enantiomer-specific
isotope analysis (ESIA) of D- and L-alanine: nitrogen isotopic hetero- and
homogeneity by microbial and chemical processes.Earth, Life, and
Isotopes, Kyoto University Press, p.387-402.
|
Ohkouchi, N., Nakajima, Y., Ogawa, N. O., Suga, H., Kashiyama, Y., Matsumoto,
K., Chikaraishi, Y., Oguri, K., and Kitazato, H. (2006) Stable carbon and
nitrogen isotopic compositions of photosynthetic pigments as tracers for
elemental cycle in the modern- and paleo-environments. Frontier Research on
Earth Evolution, 2. Journal web site
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