Sentences with phrase «ventral midline of»

The safe sites of A. mellifera identified in our study are similar to those on the dorsal and ventral midline of honeybees pollinating different Pedicularis L. species (Orobanchaceae) in China [38](S6 Table), indicating the safe sites» relevance in a natural context.

Field observations of flower - visiting bees (Apis mellifera, different species of Bombus and other genera) at mainly species of Orobanchaceae and Fabaceae have demonstrated that after pollen accumulation on the bees» bodies by the pollen - sacs) and subsequent grooming, residual patches of pollen patches remain in specific areas of the bees» body, mainly on the dorsal and ventral midline of the head, thorax and abdomen [31 — 42].

Not exact matches

Some pollen grains were also found on the legs and the ventral side, but larger pollen accumulations were found only on the midline of the proximal ventral abdomen.

Our study of annelid development reveals a population of mesodermal cells that converge and extend along the ventral midline and express a combination of transcription factors, signaling molecules, and guidance factors that closely matches that of the vertebrate chordamesoderm.

Yet, in the absence of detailed investigations of expression profile and developmental fate of mesodermal midline cells in basal ecdysozoans and deuterostome ambulacrarians, the nature of ventral midline tissue in urbilaterians remains undecided.

Regardless of its nature, dorsoventral axis inversion (35) would have brought the ventral midline tissue into a dorsal position in the chordate lineage, and the appearance of incompressible vacuoles (14) would have gradually transformed it into a stiff rod of constant length; the amphioxus notochord could then be regarded a vestige of a contractile - cartilaginous transition.

For the simultaneous visualization of hemolymph flow through the heart and ventral abdominal contractions, as well as the quantification of hemolymph flow speeds in the lateral abdomen, mosquitoes were restrained laterally by placing pins: (1) on either side of the cervical membrane such that they crossed dorsally and restrained the mosquito between the pins and the Sylgard; (2) through non-vascular portions of each wing after they had been teased away from the abdominal tergum; (3) between the wings and the anterior portion of the abdomen; (4) over the legs, entering the Sylgard posterior to the third leg pair; and (5) immediately dorsal of the longitudinal midline of the scutum (Figure 1B).

The prepuce in male dogs may be clamped to one side of ventral midline with a sterile Backhaus towel clamp.

These tumors are usually found under the skin along the ventral (lower) midline of the abdomen and limbs.