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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Response of in vitro pollen germination and pollen tube growth of almond (Prunus dulcis Mill.) to temperature, polyamines and polyamine synthesis inhibitor
Biochemical Systematics and Ecology, Volume 39, No. 4-6, Year 2011
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Description
Prunus dulcis L. 'Mamaei' is grown widely in souhtwest of Iran. It blooms in early spring when temperatures are still low. Based on our knowledge there are no reports in the literature regarding pollen behavior of this cultivar under specified condition. Thus, the possible factors for low germination percentage in this cultivar have not been reported. The effect of three different temperatures (10, 25, or 35 °C), polyamines (putrescine, spermidine, and spermine) and polyamine synthesis inhibitor, methylglyoxals-bis (guanyl-hydrazone) (MGBG) on in vitro pollen germination and pollen tube growth were investigated in P. dulcis L. 'Mamaei'. All temperatures and chemicals significantly affected both pollen germination percentage and pollen tube growth. In general, different polyamines stimulated the pollen germination percentage compared to the control at all temperatures, but increasing the temperature, particularly to 35 °C, had demonstrated inhibitory effects on pollen germination. At a concentration of 0.05 mM putrescine and spermidine and 0.005 and 0.025 mM spermine revealed longer pollen tube growth than that of the control at 10 °C, while higher concentrations tended to inhibit pollen tube growth. At 25 °C, most of the treatments had an inhibitory effect on pollen tube growth except for 0.25 mM putrescine and 0.005 mM spermine, which slightly stimulated pollen tube growth. Pollen germination and pollen tube growth were inhibited by MGBG at all temperatures and in all concentrations. © 2011 Elsevier Ltd.
Authors & Co-Authors
Sorkheh, Karim
Iran, Shahr-e Kord
Shahrekord University
Shiran, Behrouz
Iran, Shahr-e Kord
Shahrekord University
Rouhi, Vahid
Iran, Shahr-e Kord
Shahrekord University
Khodambashi, Mahmood
Iran, Shahr-e Kord
Shahrekord University
Wolukau, Joseph N.
Kenya, Njoro
Egerton University
Ercıslı, Sezai
Turkey, Erzurum
Atatürk Üniversitesi
Statistics
Citations: 41
Authors: 6
Affiliations: 3
Identifiers
Doi:
10.1016/j.bse.2011.06.015
ISSN:
03051978