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Biology Articles » Anatomy & Physiology » Anatomy, Plant » Comparative leaf anatomy of Peperomia (Piperaceae): I. Ontogenesis of the aquiferous tissue and the stomata
Abstract: Most species of Peperomia presents a water reservoir tissue on
the adaxial surface of the leaf. This tissue can vary in thickness
determining more or less succulence to the leaf. On purpose of
determining the origin of important anatomic structures for this group,
the present work describes the development of the water reservoir
specialized tissue, as well as the stomata ontogenesis for P. catharinae Miquel, P. emarginella (Sw.) C.DC., P. quadrifolia (L.) Kunth and P. rotundifolia
(L.) Kunth. Young leaves from the stem apex and the first node were
observed in cross and paradermic sections. The techniques were the
usual for light microscopy. All the species presented the water
reservoir specialized tissue originated from periclinal divisions of
protodermal cells. The stomata ontogenesis is mesoperigenous and it
gives rise to anisocytic, tetracytic and staurocytic stomata.
Full text available in Portuguese : TAKEMORI, Nathieli Keila, BONA, Cleusa and ALQUINI, Yedo. Comparative leaf anatomy of Peperomia (Piperaceae): I. Ontogenesis of the aquiferous tissue and the stomata. Acta Bot. Bras.,
vol.17, no.3, p.387-394.
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