A gametophyte, or gamete-bearing plant, is one of the two multicellular phases that occur in alternation of generations. The gametophyte is the haploid phase; that is, its cells contain only one set of chromosomes, in contrast to the sporophyte phase,...

A gametophyte is a haploid, gamete producing sexual phase in the life cycle of the plants that exhibit a phenomenon called the alternation of generations. The other distinct phase in the life cycle of such plants is called a sporophyte. The gametophyte...

In plants that undergo alternation of generations, a gametophyte is the structure, or phase of life, that contains only half of the total complement of...

INTRODUCTION Early in their evolution, plants acquired a life cycle that alternates between a multicellular haploid organism, the gametophyte, and a multicellular diploid organism, the sporophyte. Angiosperms have both female and male gametophytes. The female gametophyte is critical to many steps of the...

INTRODUCTION In a previous review of male gametophyte development (McCormick, 1993), it was noted that the two areas posed by Mascarenhas (1975) as fruitful areas for future research were the following. What are the differences in the two cytoplasms that determine the different...