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Influence de l'acide Abscissique sur le transport d'ions inorganiques chez la pomme de terre
(Solanum tuberosum cv. Bintje). Etude Comparée avec quelques auters phytohormones.
Sausan Suleiman, Anick Hormant and Michel Penot, 1990.
Tishreen University , Lattakia, Syria
Abstract
Using detached leaves of potato plants (Solanum tuberosum cv. Bintje) it was showen that abscisic acid induced an oriented transport of ions (Rb86, P32 and S35) towards the hormone - treated leaflet. In the order to understand the hormone effect on cell permeability, pretreatment of discs with hormonal solution was conducted. The pretreatment with(ABA)stimulated the uptake of K+ simultaneously with the decrease of efflux.
The effect of(ABA)on ion uptake is compared with the action of other hormones, benzylaminopurine (BAP), gibberelline (GA3) known to act over a long distance transport, too.
Three kinds of specificity are underlined:
hormonal specificity (stimulation by ABA and inhibition by BAP of K+ uptake by foliar tissues)
ionic specificity (ABA) increase Rb86 influx, but inhibits P32 and S35 influx)
tissues specificity shown by a comparative study between foliar tissues (source) and tuber tissues (sink).
The autoradiography of foliar discs demonstrated that a treatment of foliar discs can be used, at least for Rb+ (K+), to study role of(ABA) in long-distance transport.
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| New Publications |
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The Arab Scientists in Cooperation with The High Institute of Marine Research. Publish all the researches abstracts, which presented in The Regional Workshop on Marine Sciences and Natural Resources, Tishreen University, Lattakia, Syria, 25-26 May 2004.
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| New Publications |
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The Arab Scientists in Cooperation with The Egyptian Society for Biological Control of Pests . Publish all the researches abstracts, which presented in The First Arab Conference of Applied Biological Pest Control, Cairo, Egypt, 5-7 April 2004.
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| Conferences, Fez |
The First International Symposium on Environnement protection for development Biotechnological aspects. Fez, December
15 – 17, 2004.
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| Conferences, Syria |
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The Second Syrian-Egyptian conference in the Agriculture and Food.
Agriculture Faculty, Al-Baath university, Homs, Syria. 25-28 April, 05
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| Conference,Yemen |
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Current Status of Plant Protection in Yemen and Future Strategy.
Faculty of Agriculture, Sana'a University, Sana'a, yemen. December 18-20/2004
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| Conferences Canada |
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The 9th International Conference of the Orthopterists’ Society
Canada, on August 14 19, 2005
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| Conferences, Egypt |
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The First Arab Conference on Applications of Biological Control of Pests in Arab Countries
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| Workshop,Lebanon |
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New Workshop
Middle-East Academy for Medicine of Ageing
First Annual Middle-East Age & Aging Meeting
8-11 April, 2004
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| Publications |
Arab Society for Plant Protection (ASPP) in Cooperation with The Arab Scientists
Publish all the researches abstracts, which presented in the Eighth Arab Congress of
Plant Protection, held in Faculty of Agriculture, Omar Al-Mukhtar University, El-beida
City, Libya, October 12-16,2003
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