TY - JOUR
T1 - Osmotic concentration in three races of honey bee, Apis mellifera L. under environmental conditions of arid zone
AU - Ali, Hussain
AU - Alqarni, Abdulaziz S.
AU - Owayss, Ayman A.
AU - Hassan, Awad M.
AU - Smith, Brian
N1 - Funding Information:
The authors extend their appreciation to the Deanship of Scientific Research at the King Saud University for funding this work through the research group project No. RGP-189.
Publisher Copyright:
© 2016
PY - 2017/7
Y1 - 2017/7
N2 - Hemolymph osmolarity has great effect on honey bee health, especially in arid and semi-arid zones. It regulates water and nutrients in stressed tissues. Osmotic concentration in three races (Apis mellifera ligustica, A. m. carnica and A. m. jemenitica) of Apis mellifera was tested in central Saudi Arabia during spring and summer seasons in 2015. Newly emerged bee workers were first marked and later their hemolymph was extracted after intervals of 1, 5, 10, 15, 20 and 25 days. A significant positive correlation between age and osmolarity was found in all three races during spring and summer seasons. The lowest combined osmotic concentration for all three races was found after 1 day interval, while the highest osmotic concentration was recorded after 25 days. Among all races, A. m. ligustica showed significantly high osmotic concentration after 25 days in spring and summer seasons as compared to the other two races. Only A. m. jemenitica showed similar osmotic concentration after 10 and 15 days in both spring and summer seasons compared to other two races. Mean osmotic concentration of all three races was significantly different after 20 and 25 days in spring and summer seasons. Overall mean recorded during summer was significantly higher than the mean of spring season. Combined osmotic concentration in young drones of all races was significantly lower than that of old drones during spring and summer seasons.
AB - Hemolymph osmolarity has great effect on honey bee health, especially in arid and semi-arid zones. It regulates water and nutrients in stressed tissues. Osmotic concentration in three races (Apis mellifera ligustica, A. m. carnica and A. m. jemenitica) of Apis mellifera was tested in central Saudi Arabia during spring and summer seasons in 2015. Newly emerged bee workers were first marked and later their hemolymph was extracted after intervals of 1, 5, 10, 15, 20 and 25 days. A significant positive correlation between age and osmolarity was found in all three races during spring and summer seasons. The lowest combined osmotic concentration for all three races was found after 1 day interval, while the highest osmotic concentration was recorded after 25 days. Among all races, A. m. ligustica showed significantly high osmotic concentration after 25 days in spring and summer seasons as compared to the other two races. Only A. m. jemenitica showed similar osmotic concentration after 10 and 15 days in both spring and summer seasons compared to other two races. Mean osmotic concentration of all three races was significantly different after 20 and 25 days in spring and summer seasons. Overall mean recorded during summer was significantly higher than the mean of spring season. Combined osmotic concentration in young drones of all races was significantly lower than that of old drones during spring and summer seasons.
KW - Apis mellifera races
KW - Arid zone
KW - Environmental stresses
KW - Hemolymph
KW - Osmolarity
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U2 - 10.1016/j.sjbs.2016.12.006
DO - 10.1016/j.sjbs.2016.12.006
M3 - Article
AN - SCOPUS:85009192938
SN - 1319-562X
VL - 24
SP - 1081
EP - 1085
JO - Saudi Journal of Biological Sciences
JF - Saudi Journal of Biological Sciences
IS - 5
ER -