科研之友
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摘要
Para descrever a morfologia de plantulas e a anatomia de cotil谷dones e eofilos de Gomphrena elegans Mart., 100 sementes foram colocadas em germinador, a 25 ㊣ 1oC e 30 ㊣ 1oC, sob ilumina o fluorescente branca cont赤nua e outras 100 foram colocadas em sacos pl芍sticos, contendo areia e terra adubada, mantidas em casa de vegeta o sob condi esambiente, cobertas com sombrite 50% e regadas diariamente. O pec赤olo e limbo cotiledonares e eofilares das plantulas foram seccionadas no ter o mediano e bordo e analisadas em sec es transversais e parad谷rmicas. A morfologia inicial da plantula 谷 epigeofoli芍cea,a raiz axial, hipoc車tilo e epic車tilo avermelhados. A vena o 谷 do tipo pinada, campt車droma e broquid車droma nos cotil谷dones e eofilos. A lamina foliar e o pec赤olo apresentam epiderme unisseriada com c谷lulas de tamanho vari芍vel e est matos anomoc赤ticos. Ocorrem drusas de oxalato de c芍lcio nas laminas foliares e pec赤olos. O mesofilo dorsiventral apresenta uma camada de par那nquima pali 芍dico e v芍rias de lacunoso. Aiming to describe seedlings＊ morphology and cotyledons and eophylls anatomy of Gomphrena elegans Mart., 100 seeds were put into plastic bags, with sand and fertilized soil (1:3), kept in the greenhouse under room conditions, with 50% shady and watered daily. Cotyledonous petiole and limb and seedlings eophylls were sectioned in median and border. They were then analyzed in transversal and paradermic sections. Seedlings initial morphology is epigeal-foliar, the rootis axial, and hypocotyls and epicotyl are reddish. Venation is of pinnate type, camptodrome and brochidrodome in cotyledons and eophylls. Petiole and leaf show uniseriated epidermis with cells of varied sizes and anomocytic stomata. Druses of calcium oxalate occurred in leaves and petiole. Dorsiventral mesophyll shows one palisade parenchyma layer and several lacunary ones.
