Titlebook: Biotechnology and Ecology of Pollen; Proceedings of the I David L. Mulcahy,Gabriella Bergamini Mulcahy,Ercol Conference proceedings 1986 Sp

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Identification of Duplicate Loci and Evidence for Post-meiotic Gene Expression in Pollend and relatively brief; however, other tracheophytes possess a more developed gametophyte which often exists as a free-living entity. One would expect such gametophytes to express all enzymes required for an autotropic existence. Indeed, isozyme studies on ferns (Gastony and Gottlieb, 1982) have dem

JAMB

Gametophytic Gene Expression in Embryo-lethal Mutants of ,ants (Meinke 1986). The most extensive studies have dealt with defective kernel mutants of corn (Sheridan and Neuffer 1982), embryo-lethal mutants of . (Müller 1963; Meinke 1985), and variant cell lines of carrot unable to complete somatic embryogenesis .. (Breton and Sung 1982). .. (Cruciferae) has

AVID

Extent of Gene Expression at the Gametophytic Phase in Maizesiological processes are those related to respiration, reserve mobilization, nutrient uptake, biosynthesis first of intine and then of pollen tube wall (3). Pollen is also able to respond to environment; this ability is expressed both in physiological interaction with stylar tissues during tube deve

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Predicting Species Response to Ozone Using a Pollen Screen0. dosages was documented. (Feder . 1969,1970;Gentile . 1971;Omrod . 1976;Davis & Wood 1972;Miller . 1969;and Berry 1973.) Sensitive plant species are injured by 0.04–0.06ppm 0. for 4hr. Petunia, tobacco, potato, and morning glory and tree species like white pine and ponderosa pine were in this 0.-s