Haemolymph plasma constituents of the invasive snail Pomacea canaliculata (Caenogastropoda, Architaenioglossa, Ampullariidae)

JUAN A. CUETO, MAXIMILIANO GIRAUD-BILLOUD, ISRAEL A. VEGA AND ALFREDO CASTRO-VAZQUEZ

MOLLUSCAN RESEARCH

MAGNOLIA PRESS

Lugar: Auckland ; Año: 2011 vol. 31 p. 57 - 60

1323-5818

&amp;amp;amp;lt;!-- /* Font Definitions */ @font-face {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4; mso-font-charset:0; mso-generic-font-family:roman; mso-font-pitch:variable; mso-font-signature:-1610611985 1107304683 0 0 159 0;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-unhide:no; mso-style-qformat:yes; mso-style-parent:""; margin:0cm; margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman","serif"; mso-fareast-font-family:"Times New Roman"; mso-ansi-language:EN-GB; mso-fareast-language:ES-TRAD;} p.MsoBodyText, li.MsoBodyText, div.MsoBodyText {mso-style-noshow:yes; mso-style-link:"Texto independiente Car"; margin-top:0cm; margin-right:0cm; margin-bottom:6.0pt; margin-left:0cm; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman","serif"; mso-fareast-font-family:"Times New Roman"; mso-ansi-language:EN-GB; mso-fareast-language:ES-TRAD;} p.MsoBodyTextFirstIndent, li.MsoBodyTextFirstIndent, div.MsoBodyTextFirstIndent {mso-style-unhide:no; mso-style-parent:"Texto independiente"; mso-style-link:"Texto independiente primera sangría Car"; margin-top:0cm; margin-right:0cm; margin-bottom:6.0pt; margin-left:0cm; text-indent:10.5pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman","serif"; mso-fareast-font-family:"Times New Roman"; mso-ansi-language:EN-GB; mso-fareast-language:ES-TRAD;} span.nbapihighlight {mso-style-name:nbapihighlight; mso-style-unhide:no;} span.TextoindependienteCar {mso-style-name:"Texto independiente Car"; mso-style-noshow:yes; mso-style-unhide:no; mso-style-locked:yes; mso-style-link:"Texto independiente"; mso-ansi-font-size:12.0pt; mso-bidi-font-size:12.0pt; mso-ansi-language:EN-GB; mso-fareast-language:ES-TRAD;} span.TextoindependienteprimerasangraCar {mso-style-name:"Texto independiente primera sangría Car"; mso-style-unhide:no; mso-style-locked:yes; mso-style-parent:"Texto independiente Car"; mso-style-link:"Texto independiente primera sangría"; mso-ansi-font-size:12.0pt; mso-bidi-font-size:12.0pt; mso-ansi-language:EN-GB; mso-fareast-language:ES-TRAD;} .MsoChpDefault {mso-style-type:export-only; mso-default-props:yes; font-size:10.0pt; mso-ansi-font-size:10.0pt; mso-bidi-font-size:10.0pt;} @page Section1 {size:612.0pt 792.0pt; margin:70.85pt 3.0cm 70.85pt 3.0cm; mso-header-margin:36.0pt; mso-footer-margin:36.0pt; mso-paper-source:0;} div.Section1 {page:Section1;} --&amp;amp;amp;gt; Haemolymph plasma constituents were studied in Pomacea canaliculata. Osmolality, pH, electrolytes, two metals, monosaccharides, total proteins, free amino acids and other nitrogen compounds were measured. Glucose, but not galactose, was detected in plasma. Cations found (in decreasing order) were sodium, calcium, potassium and magnesium. Chloride was the main inorganic anion, followed by bicarbonate and phosphate. Total plasma copper (the metal constituent of haemocyanin) was in a much higher concentration than that of total iron. Ammonia was the main nitrogen-excretory compound. Uric acid showed a lower concentration in plasma, while urea was undetectable (<0.08 mmol/L). Seventeen proteinogenic amino acids wereinvestigated: two-digit mM concentrations were found for glutamine, alanine, valine, methionine, threonine and leucine, while one-digit mM concentrations were found for proline, phenylalanine, isoleucine, serine, glycine and glutamic acid; histidine, tyrosine, tryptophan, lysine and aspartic acid were undetectable (<0.2 mmol/L). This is the most comprehensive report on haemolymphplasma constituents in a gastropod species, and results are discussed in the context of what is known for other gastropods.