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Feeding activity, salivary amylase activity, and superficial damage to soybean seed by adult Edessa meditabunda (F.) and Euschistus heros (F.) (Hemiptera: Pentatomidae). Repositório Alice
SILVA, F. A. C.; SILVA, J. J.; DEPIERI, R. A.; PANIZZI, A. R..
Tipo: Artigo de periódico Palavras-chave: Cotyledon; Damage.; Glycine Max; Soja.; Tetrazolium..
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/945305
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Morphoanatomy of Serjania communis Cambess. seedling (Sapindaceae) Biological Sciences
Lopes, Willian Adriano Lira; Souza, Luiz Antonio de.
Serjania communis Cambess. (Sapindaceae) is a plant with climbing habit and occurs relatively often in Paraná State, Brazil. The fruits were collected at the 'Parque dos Pioneiros' a remnant of subtropical forest in Maringá, Paraná State, Brazil. The seedlings obtained in the greenhouse were described according to traditional techniques in plant morphology. Seedlings were embedded in historesin and sectioned in rotation microtome. The fruit is the samaroid type, the seeds have about 3 mm in length and brown color. Seedlings are epigeal phanerocotylar. The seedlings have a hairy hypocotyl, foliaceous cotyledons, reduced epicotyl, and two opposite eophylls. The root is diarch, the hypocotyl shows root-stem transition structure, stem epicotyl, and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Root; Hypocotyl; Cotyledon; Epicotyl; Eophyll.
Ano: 2015 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/27484
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Morphology and anatomy of the seedling and the tirodendro of Calophyllum brasiliense Cambess. (Clusiaceae) Biological Sciences
Jesus, Valquíria Aparecida Mendes de; Braccini, Alessandro Lucca; Souza, Luiz Antonio de; Moscheta, Ismar Sebastião; Mariucci, Giovanna Emanuelle Goncalves; Santos, Fábio Lúcio.
Calophyllum brasiliense Cambess. is a tree species that is presented as an alternative to replace endangered species of hardwood. The morphology and anatomy of the seedling of this species is the object of the present study. Seedlings at different stages of development were obtained in greenhouse and analyzed fresh and fixed in FAA (Formalin-Acetic-Alcohol) 50. The anatomical analysis was done by the freehand and microtome sections, according to standard techniques in plant anatomy. The seedling and/or tirodendro is cryptocotylar and hypogeal, has cataphylls, and presents eophylls and metaphylls simple with venation pinnate craspedodromous simple. The root is polyarch, the hypocotyl is very short, the cotyledons have an oily and starchy reserve, the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 2.03.00.00-0; 2.03.02.03-7; 2.03.02.00-2 seedling axis; Cotyledon; Eophyll; Calophyllum; Structure Botânica; Anatomia Vegetal; Morfologia Vegetal.
Ano: 2014 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/21585
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Seed anatomy and histochemistry of Myrciaria dubia (Kunth) McVaugh, an Amazonian Myrtaceace. Repositório Alice
RIBEIRO, O. D.; NASCIMENTO, W. M. O. do; CRUZ, F. J. R.; GURGEL, E. S. C..
Myrciaria dubia, or camu-camu, is a perennial species that produces fruits of great nutritional interest because they have high levels of antioxidant compounds. The species occurs spontaneously on Amazonian river margins and requires a low amount of nutritional resources. Further, Myrciaria dubia fruits are collected via extractivism and managing this process is still at an incipient stage. The present study investigated the anatomical and histochemical aspects of the seeds of five clones of Myrciaria dubia. The external seed coat has an epidermis comprising a single layer of tabular cells that are rich in phenolic content, pectins, alkaloids, and terpenes. The cotyledons have a uniseriate epidermis, polyhedral parenchyma cells with a high concentration of...
Tipo: Artigo de periódico Palavras-chave: Camu-camu; Fruit; Cotyledon; Terpenes; Myrtaceace.; Myrciaria Dubia; Phenolic compounds..
Ano: 2021 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1132546
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Storage sites in seeds of Caesalpinia echinata and C. ferrea (Leguminosae) with considerations on nutrients flow BABT
Teixeira,Simone de Pádua; Machado,Sílvia Rodrigues.
The seeds of Caesalpinia echinata and C. ferrea behaved as typical endospermic seeds, despite their different morphological classification (exendospermic seeds were described for C. echinata and endospermic seeds for C. ferrea). Then, the aim of this work was to compare, under ultrastructural and histochemical terms, the nature of the storage substances and their accumulation sites, as well as the nutrient flow in seeds of these species. Cotyledons in C. echinata accumulate carbohydrates, lipids and proteins, which are mobilized from the outer to the inner parts as revealed by the position of plasmodesmata. Endosperm in C. ferrea accumulates carbohydrates and in C. echinata accumulates substances during the initial embryogenic phases. Such tissue develops...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cotyledon; Embryo; Endosperm; Histochemistry; Reserve substances; Ultrastructure.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000100016
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Ultrastructure of bovine placenta during all gestational period Arq. Bras. Med. Vet. Zootec.
Santos,R.B.; Silva,J.M.; Beletti,M.E..
ABSTRACT Placentas from pregnant cows with different gestation periods were used. Placental fragments of all groups were processed and evaluated by transmission electron microscopy. After fragment analysis, bovine placenta was observed to be epitheliochorial type in early pregnancy, becoming progressively sinepiteliocorial at the beginning of the second trimester. There are no ultrastructural evidences of inflammation in the region of caruncles throughout gestation, despite the invasion of caruncle proper lamina by trophoblast cells. However, throughout pregnancy and especially at the end, there were evident signs of cell degeneration in both trophoblast and the uterine epithelium. The active trophoblast cells intensely phagocytize cellular debris. There...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bovine placenta; Ultrastructure; Maternal-fetal interaction; Cotyledon; Caruncles.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000601376
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