Tsuji, "Anion antiport
mechanism is involved in transport of lactic acid across intestinal epithelial brush-border membrane," Biochimica et Biophysica Acta: Biomembranes, vol.
SOS1 may be active as an antiport
transporter and as ionic channel in the loading of xylem or even as a [Na.sup.+]/[H.sup.+] symport transporter in the unloading of xylem.
Role of Na+/H+ antiport
in intracellular pH regulation by rabbit enterocytes.
Therefore, the antiport
crosstalk between starch and cellulose biosyntheses [36, 37, 38] is mediated by Pi translocator and glucosyltransferase via the plus/plus strands sequence homology of the GDH-synthesized RNAs that regulate the abundance of their mRNAs.
This type of transport is called: (a) cotransport (b) antiport
(c) symport (d) a and b (e) duoport Answer = d 3.
Salt tolerance conferred by over expression of a vacuolar [Na.sup.+]/[H.sup.+] antiport
If the N[O.sub.3.sup.-]-N produced is taken up in an antiport
uptake exchange (Kennedy 1992) with HC[O.sub.3.sup.-] or O[H.sup.-] , then the soil pH will increase and will neutralise the acidity created by nitrification.
On the other hand, an increased rate of Na/Mg antiport
in hemodialysis patients, which leads only to Mg efflux out of RBC, partially compensates for the intracellular increase .
Paillard, "Signaling pathways in the biphasic effect of angiotensin II on apical Na/H antiport
activity in proximal tubule," Kidney International, vol.
Nitric oxide enhances salt tolerance in maize seedlings through increasing activities of proton-pump and Na+/H+ antiport
in the tonoplast.
The decrease of intracellular ATP strongly penalizes all the ATP dependent pumps such as [Na.sup.+]/[K.sup.+] ATPase, [H.sup.+] ATPase, and [Na.sup.+]/[H.sup.+] antiport
, that is essential for ionic stability, while its release favors the microcirculation through the paracrine action of the nucleotide on purinergic receptors of vascular epithelium and the concomitant synthesis of nitric oxide by nitric oxide synthase.
Zhang, "Nitric oxide enhances salt tolerance in maize seedlings through increasing activities of proton-pump and [Na.sup.+]/[H.sup.+] antiport
in the tonoplast," Planta, vol.