Nathanael Pringsheim
Nathanael Pringsheim
1823-1894
German botanist who investigated reproduction in plants. Pringsheim was among the first to observe sexual reproduction in algae. He showed that these tiny organisms release sperm and egg cells into the water, where they combine. He also described the alternation of generations, or reproduction by spores, in mosses. Pringsheim was independently wealthy and conducted private research, as well as established the German Botanical Society and the journal Jahrbucher fur wissenschaftliche Botanik.
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Alternation Of Generations , For sexually reproducing multicellular organisms such as plants and animals, the life cycle requires that diploid cells divide by meiosis to create h… Nathanael Pringsheim , Pringsheim, Nathanael
PRINGSHEIM, NATHANAEL
botany, plant physiology.
Pringsheim belonged to that group of young German botanists—including Ferdinand… Parthenogenesis , Parthenogenesis in animals refers to reproduction in which a new individual genetically identical to the parent develops from an unfertilized egg. Th… Gametophyte , A gametophyte, or gamete-bearing plant, is one of the two multicellular phases that occur in alternation of generations. The gametophyte is the haplo… Ovum , ovum (ō´vəm), in biology, specialized plant or animal sex cell, also called the egg, or egg cell. It is the female sex cell, or female gamete; the ma… Asexual Reproduction , Sexual reproduction involves the production of new cells by the fusion of sex cells (sperm and ova) to produce a genetically different cell . Asexual…
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Nathanael Pringsheim