The reversible inhibition of pollen germination of Nicotiana tabacum L.: an entry into a transformation system.

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ID: 76387
1994
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Abstract
The hydrodynamics of mature pollen rehydration in Nicotiana tabacum was used to study reversible inhibition of pollen germination in vitro. Tobacco pollen was incubated for various times in media containing calcium, potassium and magnesium salts, boric acid, and exhibiting different osmotic pressures as a function of sucrose concentration. Total inhibition of germination with complete viability preservation was achieved for 56 h by keeping the grains in medium with 80% sucrose, since typical percentages of germination and pollen tube lengths were recovered after this treatment. These effects were considered as consequences of natural osmoregulation of rehydration/germination in mature pollen. The possibility of applying these findings to the incubation of pollen with Agrobacterium tumefaciens to develop a pollen transformation method is discussed.
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Authors Loguercio, L L;Termignoni, R R;Ozaki, L S;
Journal plant cell reports
Year 1994
DOI
10.1007/BF00239899
URL
Keywords
karrikinolide pollen germination pollen tube growth smoke-water trimethylbutenolide

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