Review Article

Diverse of Erythropoiesis Responding to Hypoxia and Low Environmental Temperature in Vertebrates

Table 2

Hematopoietic responses to low environmental temperature and seasons in vertebrates.

StressSpeciesExperimental conditionPeripheral blood cell countsHematopoietic observationReference
IncreaseDecrease

Seasonal
change
Nine-banded armadillo 
(Dasypus novemcinctus)
WinterDecrease hematopoietic cells in armor dermal bone marrow[70]
Edible frog 
(Rana esculenta)
WinterRBC, HGB[84]
Wisent European bison 
(Bison bonasus)
SummerRBC size[85]
Grass snake 
(Natrix natrix)
WinterRBC, HGB, HCT[86]
Bottlenose dolphin 
(Tursiops truncatus)
WinterRBC, HGB, HCT[87]

Low temperatureLeopard frog 
(Rana pipiens)
5°CHCTRBC lifespan extends[88]
Painted turtle 
(Chrysemys picta)
2°CHCT[89]
Cunningham’s skink 
(Egernia cunninghami)
8°CHCT, HGB[90]
Sidewinder 
(Crotalus cerastes)
20°CRBC, HGB, HCT[91]
Fossil catfish 
(Heteropneustes fossilis)
18°CRBC, HGB, HCT, WBC[92]
American bullfrog 
(Rana catesbeiana)
5°CRBC, WBC, TBC[93]
Rat 
(Rattus norvegicus)
5°CRBC, HGB, HCT[72]
Chicken 
(Gallus domesticus)
10°CHGB, HCT[73]
Zebrafish 
(Danio rerio)
17°CDownregulate erythropoietic genes expression level[94]
African clawed frog 
(Xenopus laevis)
5°CRBC, WBC, TBCEnhanced hepatic erythrocyte destruction 
Newly produced erythrocytes are confined to the liver
[39]
Mouse 
(Mus musculus)
5°CHCT, HGBUpregulate erythropoiesis[74]

OtherEuropean hamster 
(Cricetus cricetus)
HibernationWBC, TBC[95]
Syrian hamster 
(Mesocricetus auratus)
HibernationTBC[72]
Rat 
(Rattus norvegicus)
Transposing the tail into the abdomenMaintain the hematopoiesis in bone marrow of tail vein[71]

RBC, erythrocyte; HGB, hemoglobin; HCT, hematocrit; WBC, leukocyte; TBC, thrombocyte.