Maurice LOİR
Born
in
1939,
1959-1960: radio operator, merchant navy,
1961-1962: radio operator, navy (military service),
1963-1966: Université de Caen, Science degree, MSc thesis,
1967-1999: Biologist (male reproduction) at the Institut National de la
Recherche Agronomique,
1979: Thesis, Université de Rennes, Docteur ès
Sciences,
1984: Research director,
1999: retirement.
Member of the Association des Diatomistes de Langue française
and of the Société Phycologique de France.
1960: First scuba dives,
1961-1962: sampling of marine benthic diatoms in the sublittoral zone,
on the french coast of the Channel,
1974-1997:
Underwater photography of marine fauna and flora; Brittany,
Irland and mediterranean coast of France
2000-2004: sampling of marine plankton on the south coast of Brittany,
2004-2011:
sampling of marine benthic diatoms by scuba diving on the south coast
of Brittany,
2005-2015:
sampling of marine benthic diatoms by snorkelling on the coasts of the
French Lesser Antilles.
2010-2014:
sampling
of marine benthic diatoms on the coasts of Corfou, Crete, Dalmatia,
Greece and Sardinia.
Websites
Marine benthic diatoms : http://www.diatomloir.eu/Site
Diatom/Index.html
Freshwater diatoms and fossil diatoms : http://www.diatomloir.eu/Diatodouces/Index.html
Marine plankton : http://www.diatomloir.eu/Siteplancton/Index.html
Books and papers
Marine fauna and flora:
Les
animaux étranges du bord de mer. 2007. Maurice LOIR, Ed. Ouest-France.
Poissons
des côtes de france. 1999, 2007. Maurice LOIR, Camille
LUSARDI & Yvette Tavernier, Ed. Ouest-France.
Fonds
sous-marins de la
Bretagne. 1998. Y. TURQUIER, Camille LUSARDI & Maurice LOIR,
Ed.
Ouest-France.
Découvrir
la faune de Méditerranée. 1996. Maurice LOIR
& Camille LUSARDI, Ed. Ouest-France.
L'océan
visité. 1994. Maurice LOIR & Camille LUSARDI, Ed.
Altamira.
Connaître
et reconnaître
la faune du littoral. 1981. Y. TURQUIER & Maurice LOIR, Ed.
Ouest-France.
Les
poissons du bord de
mer. 1978, 1992. Maurice LOIR, Camille LUSARDI & Michel
TAVERNIER, Ed. Ouest-France.
Les
animaux étranges du
bord de mer. 1978, 1993. Maurice LOIR, Ed. Ouest-France.
Diatoms:
Loir M.
& Novarino G. (2013) : Marine Mastogloia Thwaites
ex W. Sm. and Stigmaphora
Wallich species from the French Lesser Antilles. Diatom
Monographs, vol. 16. A. Witkowski (ed.), A.R.G. Gantner Verlag K.G.
133p.
Loir M. (2009) : Le genre Catenula
Mereschkowsky (diatomées - Bacillariophyta) des fonds
sableux infralittoraux du sud de la Bretagne : six
nouvelles
espèces. Cryptogamie, Algol., 30 (4), 321.
Loir M. (2007) : Le genre Cocconeis
Ehrenberg (1837) des fonds sableux de l'infralittoral de Bretagne-Sud.
Diatomania 11, 20-29.
Loir
M.
(2004a) : Guide des Diatomées. Delachaux et
Niestlé, Paris.
Loir M. &
Le Cohu R. (2004b) :
Diatomées de l'Île de Groix. Penn AR
Bed, 190-191, 79-83.
Loir
M. (2004c) : Merveilleuses Diatomées.
Océans, n° 279, Toulouse.
Biology of
the male reproduction
Loir
M. 2001. Adenosine receptor-adenylate cyclase systemin the trout
testis: involvement in the regulation of germ cell proliferation. Mol Reprod Dev 58: 307-317.
Le Gac F.
Thomas J.L. Mourot B. & Loir M. 2001. In vivo and in vitro effects of
prochloraz and nonylphenol ethoxylates on trout spermatogenesis. Aquatic Toxicology 53: 187-200.
Loir M. Le Gac F.
Somarakis S. & Pavlidis M. 2001. Sexuality and gonadal cycle of
the common dentex (Dentex
dentex) inintensive culture. Aquaculture 194: 363-381.
Loir
M. 1999. Spermatogonia of rainbow trout: I. morphological
characterization, mitotic activity and survival in primary cultures of
testicular cells. Mol
Reprod Dev 53: 422-433.
Loir
M. 1999. Spermatogonia of rainbow trout: II. In vitro study of
theinfluence of pituitary hormones, growth factors and steroids on
mitotic activity. Mol
Reprod Dev 53: 434-442.
Loir
M. 1999. Spermatogonia of rainbow trout: III. In vitro study of the
proliferative response to extracellular ATP and adenosine. Mol Reprod
Dev 53: 443-450.
Le Gac F. & Loir M. 1999. Male reproductive system, fish. Encyclopedia of reproduction 3:
20-30.
Saudrais C. Fierville F. Loir M. Le Rumeur E. Cibert C & Cosson
J.
1998. The use of phosphocreatine plus ADP as energy source for motility
of membrane-deprived trout spermatozoa. Cell Motil Cytoskeleton 41:
91-106.
Saudrais C. Garber A.T. McKay D.J. Dixon G.H. & Loir M. 1996.
Creatine kinase in trout male germ cells: purification, gene
expression, and localization in the testis. Mol Reprod Dev 44: 433-442.
Vizziano D. Fostier A. Le Gac F. Loir M. 1996. 20-beta-hydroxysteroid
dehydrogenase activity in nonflagellated germ cells of rainbow trout
testis. Biol
Reprod 54: 167.
Loir M. Sourdaine P. Mendis-Handagama S.M.L.C. & Jegou B. 1995.
Cell-cell interactions in the testis of teleosts and elasmobrachs. Microsc Res Tech 32: 533-552.
Labbe C. Maisse G. Muller K. Zachowski A. Kaushik S. & Loir M.
1995. Thermal acclimatation and dietary lipids, alter the composition
but not the fluidity of trout sperm plasma membrane. Lipids 30: 23-33.
Cauty C. Loir M. 1995. The interstitial cells of the trout testis (Onchorhynchus mykiss):
ultrstructural characterization and changes throughout the reproductive
cycle. Tissue &
Cell 27: 383-395.
Loir M. Le Gac F. 1994. Insulin-like growth factor-I and -II binding
and action on DNA synthesis in rainbow trout spermatognia and
spermatocytes. Biol
Reprod 51: 1154-1163.
Loir M. 1994. In vitro approach to the control of spermatogonia
proliferation in the trout. Mol
Cell Endocr 102: 141-150.
Loir M. & Sourdaine P. 1994. Testis cells: isolation and
culture. Biochemistry
and molecular biology of fishes (Eds Hochachka and Mommsen) vol. 3:
249-272.
Le Gac F. Ollitrault M. Loir M. & Le Bail P. Y. 1992. Evidence
for binding and action of growth hormone in trout testis. Biol Reprod 46 949-957.
Malejac M.L. Loir M. & Maisse G. 1990. Membrane properties of
spermatozoa from rainbow trout (Oncorhynchus
mykiss) and their relationship to the freezing ability of
sperm. Aquat Living Res
3: 43-54.
Loir M. 1990. Interstitial cells from the testis of the trout (Onchorhynchus mykiss)
in vivo and in primary cultures. Cell
Tissue Res 261: 133-144.
Loir M. 1990. Trout steroidogenic testicular cells in primary
cultures. I. Changes in free and conjugated androgen and progestagen
secretions: effects of gonadotropin, serum, and lipoproteins. Gen Comp Endocrinol 78: 374-387.
Loir
M.
1990. Trout steroidogenic testicular cells in primary
cultures.
II.Steroidogenic activity of interstitial cells, Sertolicells, and
spermatozoa. Gen
Comp Endocrinol 78:
388-398.
Loir M. 1990. Trout Sertoli cells and germ cells in primary culture: I.
morphological and ultrastructural study. Gamete research 24: 151-169.
Loir M. Labbé C. Maisse G. Pinson A. Boulard G. Mourot B.
&
Chambeyron F. 1990. Proteins ofseminal fluid and spermatozoa in the
trout (Onchorhynchus
mykiss): partial characterization and variations. Fish Physiol Biochem 8: 485-495.
Loir M. Cauty C. Planquette P. Le Bail P.Y. 1989. Comparative study of
the male reproductive tract in seven families of South-American
catfishes. Aquat Living Resour 2: 45-56.
Le Bail P.Y. Margeridon A. Cauty C. Planquette P. Prevost E. &
Loir M. 1989. Biologie de la reproduction de Myleus ternetzi. Aquat Living Resour 2:
175-183.
Loir M. Margeridon A. & Cauty C. 1989. Leydig cells in Myleus ternetzi
testes. Aquat Living
Resour 2: 57-61.
Loir M. Cauty C. & Le Bail P.Y. 1989. Ambisexuality in a South
Amarican cichlid: Satanoperca
aff. leucosticta.
Aquat Living Resour 2:
185-187.
Courtens J.L. Ploen L. & Loir M. 1988. Immunocytochemical
localization of protamine in the boar testis. J Reprod Fert 82: 635-644.
Loir M. 1988.Trout Sertoli and Leydig cells: isolation, separation and
culture. Gamete Res 20:
437-458.
Loir M. Dupressoir T. Lanneau M. Le Gac F. &
Sautière P. 1986. High mobility group proteins in ram
spermatids. Exp Cell
Res 165: 441-449.
Belaîche D. Loir M. Kruggle W. & Sautière
P. 1987.
Isolation and characterization of two protamines St1 and St2 from
stallion spermatozoa, and amino-acid sequence of the major protamine
St1. Biochem Biophys
Acta 913: 304-312.
Le Magueresse B. Le Gac F. Loir M. & Jegou B. 1986. Stimulation
of
rat Sertoli cell secretory activity in vitro by germ cells and residual
bodies. J Reprod Fert 77: 489-498.
Dupressoir T. Sautière P. Lanneau M. & Loir M. 1985.
Isolation and characterization of the ram spermatids nuclear proteins
P1, 3 and T. Exptl Cell
Res 161:
63-74.
Loir M. Bouvier D. Fornells M. Lanneau M. & J.A. Subirana.
1985.
Interactions of nuclear proteins with DNA during sperm differentiation
in the ram. Chromosoma
92: 304-312.
Sautière P. Belaîche D. Martinage A. &
Loir M. 1984. Primary structure of the ram (Ovis aries)
protamine. Eur J
Biochem 144: 121-125.
Loir M. Caraty A. Lanneau A. Menezo Y. Muh J.P. &
Sautière
P. 1984. Purification and characterization of ubiquitin from mammalian
testes. FEBS letters
169: 199-204.
Loir M. & Lanneau M. 1984. Structural function of the basic
nuclear proteins in ram spermatids. J Ultastruct Res 86: 262-276.
Courtens J.L. Delaleu B. Dubois M.P. Lanneau M. Loir M. &
Rozinek
J. 1983. Immunocytochemical localization of protamine in the spermatids
of the ram. Gamete Res
8: 21-28.
Feinberg J. Pariset C. Rondard M. Loir M. Lanneau M. Weinman S.
&
Demaille J. 1983. Evolution of calcium dependent and cyclic AMP
dependent regulatory mechanisms during ram spermatogenesis. Developmental Biol 100: 260-265.
David J.C. Vinson D. & Loir M. 1982. Developmental changes of
DNA ligase EC-6.5.1.1 during ram spermatogenesis. Exptl Cell Res 141: 357-364.
Loir M. & Lanneau. 1982. A strategy for an improved separation
of mammalian spermatids.Gamete
Res 6: 179 188.
Lanneau M. & Loir M. 1982. An electrophoretic investigation of
mammalian spermatid-specific nuclear proteins. J Reprod Fert 65: 163-170.
Courtens J.L. & Loir M. 1981. A cytochemical study of nuclear
changes in boar, bull, goat, mouse, rat and stallion spermatids. J Ultrastruct Res 74:
327-340.
Courtens
J.L. & Loir M. 1981. Ultrastructural detection of basic
nucleoproteins: alcoholic phosphotungstic-acid does not bind to
arginine residues. J Ultrastruct Res 74: 322-326.
Courtens
J.L. & Loir M. 1981. The spermatid manchette of mammals:
formation
and relation with the nuclear envelope and the chromatin. Reprod Nutrit Dev 21: 467-478.
Loir M. 1979. Etude des proteines basiques nucléaires des
spermatides du Bélier (Ovis aries). Thèse de
doctorat
d'état ès Sciences, Rennes, Série C,
n° 85.
Loir M. & Courtens J.L. 1979. Nuclear reorganization in ram
spermatids. J
Ultrastruct Res 67: 309-324.
Loir M. & Lanneau M. 1978. Partial characterization of ram
spermatidal basic nuclear proteins. Biochem Biophys Res Comm 80:
975-982.
Loir M. & Lanneau M. 1978. Transformation of ram spermatid
chromatin. Exptl Cell
Res. 115: 231-243.
Lemon M. & Loir M. 1977. Steroid release in-vitro by 2 luteal
cell types in the corpus luteum of the pregnant sow. J Endocr 72 351-359.
Loir M. & Lanneau M. 1977. Separation of mammalian spermatids. Methods in cell biology, vol XV,
55-77.
Lemon M. Loir M. & Mauleon P. 1976. Steroid metabolism of
isolated cell types in the corpus luteum of the pregnant sow. Theriogenology 6: 631-632.
Hochereau-De-Reviers M.T. Loir M. & Pelletier J.
1976.
Seasonal variations in the response of the testis and luteinizing
hormone levels to hemi-castration of adult rams. J Reprod Fert 46: 203-209.
Loir M. 1975. Application de la technique de séparation des
cellules par sédimentation à 1g à
l'étude
des proteines nucléaires des spermatides de
Bélier. Ann
Biol anim Biochem Biophys 15: 661-668.
Loir M. & Lanneau M. 1975. Isopycnic separation of
ram spermatids in collîdal silica gradients. Exptl Cell Res
92: 499-505.
Loir M. & Lanneau M. 1975. An electrophoretic analysis of the
basic nuclear proteins of ram spermatids. Exptl Cell Res 92: 509-512.
Meistrich M.L. Eng V.W.S. & Loir M. 1973. Temperature effects
on the kinetics of spermatogenesis in the mouse. Cell Tissue kinetics 6: 379-393.
Loir M. & Wyrobek A. 1972. Density separation of mouse
spermatid nuclei.Exptl
Cell Res. 75: 261-265.
Loir M. & Hochereau-De- Reviers M. T. 1972.
Deoxyribonucleoprotein changes in ram and bull spermatids. J Reprod Fert 31: 127-130.
Loir M. 1972. Métabolisme de l'acide
ribonucléique et des
proteines dans les spermatocytes et les spermatides de
bélier (Ovis
aries). I. Incorporation et devenir de la 3H-uridine. Ann Biol anim Biochem Biophys
12: 203-219.
Loir
M.
1972. Métabolisme de l'acide ribonucléique et des
proteines dans les spermatocytes et les spermatides de
bélier (Ovis
aries). II. Variation
de l'incorporation et devenir de la 3H-lysine, de la 3H-arginine et de
la 35S-cystine. Ann
Biol anim Biochem Biophys 12: 411-429.
Loir
M.
1972. Métabolisme de l'acide ribonucléique et des
proteines dans les spermatocytes et les spermatides de
bélier (Ovis
aries). III. Etude cytochimique des transformations
proteiques dans les vieilles spermatides. Ann Biol anim Biochem Biophys
12: 531-544.
Loir M. 1971. Evolution morphologique des chromosomes meiotiques chez
le Bélier (Ovis
aries). C. R. Acad Sci Paris 272: 2587-2590.