Measurements are described of fusicoccin(FC)-stimulated I-I + efflux in barley (Hordeum vulgate L.) roots when K + and Na + concentrations were varied. In low-salt roots H + efflux was stimulated in both 5 mM KC1 and NaC1. In salt-saturated roots H + efflux was stimulated more effectively in KC1 tha
Stimulation of H+ efflux and cation uptake by fusicoccin in barley roots
β Scribed by Pitman, M.G.; Schaefer, N.; Wildes, R.A.
- Book ID
- 123275387
- Publisher
- Elsevier Science
- Year
- 1975
- Weight
- 356 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0304-4211
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Extrusion of H + by intact barley (Hordeum vulgare L.) roots was automatically titrated. Simultaneously, uptake of K + into the roots, transport of K + through the roots, and (as a residual term) accumulation of K + within the root tissue were determined. When no monovalent cation was present in th
Despite being lipophilic, morpholine fungicides are systemic in plants. Such transport may be explicable by their protonation (pKa D 7Γ5) at the pH of plant compartments to yield the more polar cation. This behaviour might be a useful attribute to be incorporated into other classes of lipophilic pes