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- W2738967512 abstract "Effects of ultraviolet-C radiation on symmetry and morphoanatomy of Rapanea ferruginea (Ruiz et. Pav) Mez. (Myrsinaceae) leaves. This study analyzed the effects of UV-C radiation on the development of Rapanea ferruginea leaves. Young plants were selected at six months of age, previously identifying the leaves that had already differentiated on the 3 rd , 4 th , 6 th 8 th and 9 th nodes. After the selection, the plants were divided into three groups and subjected to UV-C radiation for 30, 60 or 120 minutes. The anatomic study was made by using usual techniques of cut and coloration. The morphometric analyses were made by determining three points on the midvein of the leaf, measuring from left (L) and right (R) borders to each of those points. The symmetry deviations, maximum length and width of the limb were measured and the values were submitted to Anova and the Tukey-test (p < 0.05). The responses of R. ferruginea to the UV-C were expressed by variations in the symmetry as well as morphoanatomic injuries, mainly in the palisade parenchyma and mesophyll. The differentiation of leaves did not follow a morphometric pattern, characterizing no directional asymmetry, i.e., fluctuating asymmetry. This study emphasizes the importance of multiscale observations for the determination of plant responses under stress, since several leaves showed anatomic injuries but no morphologic injuries." @default.
- W2738967512 created "2017-07-31" @default.
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- W2738967512 date "2009-01-01" @default.
- W2738967512 modified "2023-09-27" @default.
- W2738967512 title "Rapanea ferruginea (Ruiz et. Pav) Mez. (Myrsinaceae)" @default.
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