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- W2005351695 abstract "Gametophytes of five species of Equisetum that were studied in axenic single spore cultures are initially male or female, and the first antheridia appear on the males before the first arche-gonia on the females. The males never produce archegonia, but the females all produce antheridia later in progressively increasing numbers. The proportions of male and bisexual gametophytes are relatively constant within each species but vary greatly between species. Likewise between species there is great variation in the rate at which females later produce antheridia. Male gametophytes are smaller and grow more slowly than females, but individuals of both sexes live for the same length of time. After prolonged culture, growth rates fall to very low levels and there is necrosis of the older parts of the gametophytes; but sex organs are still produced. Initially female gametophytes have much sexually uncommitted tissue, whereas males are composed almost entirely of antheridial branches. The absence of archegonium formation on males may well be related to this lack of sexually undifferentiated tissue and the fact that the growth of the males is intimately connected with antheridium production." @default.
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- W2005351695 date "1970-10-01" @default.
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- W2005351695 title "Sexual behaviour of the genus Equisetum, subgenus Equisetum" @default.
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- W2005351695 doi "https://doi.org/10.1111/j.1095-8339.1970.tb02311.x" @default.
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