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Anatomical and ultrastructural aspects of leaf galls in Ficus microcarpa L.f. (Moraceae) induced by Gynaikothrips ficorum Marchal (Thysanoptera) Acta Botanica
Souza,Silvana Cristina P. M. de; Kraus,Jane Elizabeth; Isaias,Rosy Mary S..
Several species of Ficus present leaf galls and the goal of this research is to study the structural alterations involved in the formation of leaf galls caused by Gynaikothrips ficorum on F. microcarpa, an ornamental plant. The galls of young and mature leaves were separated into two developmental stages based on the presence of lesions on leaf lamina and the degree of leaf folding. Swellings of the lamina were observed in young and mature leaves during gall development which coincided with the areas of cellular hypertrophy and tissue hyperplasia. Swellings were detected in a greater amount and more precociously on young leaves when compared to mature ones. In young leaves, the cecidogenetic responses were quicker and led to further structural differences...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Leaf gall; Thrips; Ficus microcarpa; Moracecae; Anatomy.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062000000100006
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Effects of Allelochemicals from Ficus microcarpaon Chlorella pyrenoidosa BABT
Jiang,Zhongyang; Peiyong,Guo; Chang,Cheinchi; Gao,Lili; Li,Shixiong; Wan,Jinjin.
This study was performed in order to isolate and identify unknown allelochemicals from Ficus microcarpa, and to investigate the inhibitory to bloom-forming of green alga Chlorella pyrenoidosa. Through gradient elution, fraction C2, whose inhibition of alga growth in diverse extracts was the strongest was shown to cause significant reductions of maximum quantum yield, as well as electron transport rates of C. pyrenoidosa. The study data also showed that the increase of fraction C2 concentration decreased the activity of total superoxide dismutase (SOD), but increased the activities of catalase (CAT) and malondialdehyde (MDA) content. These results demonstrate that the active fraction C2 not only induced the photoinhibition or photodamage of PSII reaction...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Allelochemical; Phenols; Photosynthesis; Ficus microcarpa; Chlorella pyrenoidosa.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000400595
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