PMID- 32051435
OWN - NLM
STAT- MEDLINE
DCOM- 20201112
LR  - 20210211
IS  - 2045-2322 (Electronic)
IS  - 2045-2322 (Linking)
VI  - 10
IP  - 1
DP  - 2020 Feb 12
TI  - Metabolic responses of adult lion's paw scallops Nodipecten subnodosus exposed to 
      acute hyperthermia in relation to seasonal reproductive effort.
PG  - 2449
LID - 10.1038/s41598-020-59242-6 [doi]
LID - 2449
AB  - In marine ectotherms, reproduction is an energetically expensive process that 
      affects their thermal window tolerance. For most species, the impacts of 
      hyperthermia during gametogenesis have still not been addressed. Our aim was to 
      assess the metabolic response of adult Nodipecten subnodosus scallops to thermal 
      challenges at early development (spring) and advanced gonad maturation (summer). 
      Scallops collected in both seasons were exposed to acute hyperthermia (26 and 
      30  degrees C, 24 h), maintaining a group of scallops at acclimation temperature (22  degrees C) 
      as a control condition. During the summer, relatively low activity of hexokinase 
      (HK), as well as low levels of ATP and GTP were found in the adductor muscle, 
      suggesting a shift in energy investment for reproduction, although arginine 
      phosphate (ArgP) levels were higher in summer scallops. Hyperthermia (30  degrees C) 
      induced an increased energy expenditure reflected by a transitory enhanced oxygen 
      consumption (VO(2)) and relatively high activities of HK and arginine kinase 
      (AK). Moreover, a slight decrease in adenylic energy charge (AEC) was partially 
      compensated by a decrease in ArgP. An increase in nucleotide by-products inosine 
      monophosphate (IMP) and hypoxanthine (HX) indicated a thermal stress at 30  degrees C. 
      Some of the responses to acute hyperthermia were more pronounced at advanced 
      maturation stages (summer scallops), indicating a possible lack of energy 
      balance, with possible implications in animals challenged to global warming 
      scenario.
FAU - Salgado-Garcia, Rosa L
AU  - Salgado-Garcia RL
AD  - Centro Interdisciplinario de Ciencias Marinas (CICIMAR), Instituto Politecnico 
      Nacional (IPN), Av. Instituto Politecnico Nacional s/n Col, Playa Palo de Santa 
      Rita Apdo. Postal 592, C. P. 23096, La Paz, B.C.S., Mexico.
AD  - Centro de Investigaciones Biologicas del Noroeste, S.C. (CIBNOR), Av. Instituto 
      Politecnico Nacional 195, Playa Palo de Santa Rita Sur, C.P. 23096, La Paz, 
      B.C.S., Mexico.
FAU - Kraffe, Edouard
AU  - Kraffe E
AD  - Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280, Plouzane, France.
FAU - Maytorena-Verdugo, Claudia I
AU  - Maytorena-Verdugo CI
AD  - Centro de Investigaciones Biologicas del Noroeste, S.C. (CIBNOR), Av. Instituto 
      Politecnico Nacional 195, Playa Palo de Santa Rita Sur, C.P. 23096, La Paz, 
      B.C.S., Mexico.
FAU - Rivera-Camacho, Alma R
AU  - Rivera-Camacho AR
AD  - Centro Interdisciplinario de Ciencias Marinas (CICIMAR), Instituto Politecnico 
      Nacional (IPN), Av. Instituto Politecnico Nacional s/n Col, Playa Palo de Santa 
      Rita Apdo. Postal 592, C. P. 23096, La Paz, B.C.S., Mexico.
FAU - Sicard, M Teresa
AU  - Sicard MT
AD  - Centro de Investigaciones Biologicas del Noroeste, S.C. (CIBNOR), Av. Instituto 
      Politecnico Nacional 195, Playa Palo de Santa Rita Sur, C.P. 23096, La Paz, 
      B.C.S., Mexico.
FAU - Arellano-Martinez, Marcial
AU  - Arellano-Martinez M
AD  - Centro Interdisciplinario de Ciencias Marinas (CICIMAR), Instituto Politecnico 
      Nacional (IPN), Av. Instituto Politecnico Nacional s/n Col, Playa Palo de Santa 
      Rita Apdo. Postal 592, C. P. 23096, La Paz, B.C.S., Mexico.
FAU - Racotta, Ilie S
AU  - Racotta IS
AD  - Centro de Investigaciones Biologicas del Noroeste, S.C. (CIBNOR), Av. Instituto 
      Politecnico Nacional 195, Playa Palo de Santa Rita Sur, C.P. 23096, La Paz, 
      B.C.S., Mexico. iracotta@cibnor.mx.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20200212
PL  - England
TA  - Sci Rep
JT  - Scientific reports
JID - 101563288
RN  - 86-01-1 (Guanosine Triphosphate)
RN  - 8L70Q75FXE (Adenosine Triphosphate)
RN  - EC 2.7.1.1 (Hexokinase)
SB  - IM
MH  - Adenosine Triphosphate/metabolism
MH  - Animals
MH  - Energy Metabolism
MH  - Female
MH  - Gametogenesis
MH  - Guanosine Triphosphate/metabolism
MH  - Heat-Shock Response
MH  - Hexokinase/metabolism
MH  - Hot Temperature
MH  - Male
MH  - Oxygen Consumption
MH  - Pectinidae/enzymology/*physiology
MH  - Reproduction
MH  - Seasons
PMC - PMC7015932
COIS- The authors declare no competing interests.
EDAT- 2020/02/14 06:00
MHDA- 2020/11/13 06:00
PMCR- 2020/02/12
CRDT- 2020/02/14 06:00
PHST- 2019/07/02 00:00 [received]
PHST- 2019/12/09 00:00 [accepted]
PHST- 2020/02/14 06:00 [entrez]
PHST- 2020/02/14 06:00 [pubmed]
PHST- 2020/11/13 06:00 [medline]
PHST- 2020/02/12 00:00 [pmc-release]
AID - 10.1038/s41598-020-59242-6 [pii]
AID - 59242 [pii]
AID - 10.1038/s41598-020-59242-6 [doi]
PST - epublish
SO  - Sci Rep. 2020 Feb 12;10(1):2449. doi: 10.1038/s41598-020-59242-6.