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| Pace,Marcelo Rodrigo; Botânico,Marli Pereira; Angyalossy,Veronica. |
| Vessel elements in Monocotyledons present morphological differences according to the organ where they occur. Usually such diff erences have been explained from an evolutionary perspective, with few data on how the vessel elements could be infl uenced by the diff erent functions of organs and the growth habits of the plants. To address this question, three vegetative organs of palms of the same genus, Syagrus, growing in similar environments, but with different habits, were analyzed. Accordingly, we aimed to detect whether the vessel elements would present similar features in all species or whether the vessel elements would change according to their different habits. We found that the width and type of perforation plates varied in the same way among all... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Monocotyledons; Tracheary elements; Vegetative organs; Growth habit; Root; Stem; Leaf. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062011000200007 |
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| 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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| Marques, Angela Maria Marques Sanches; Universidade Estadual de Maringá; Moscheta, Ismar Sebastião; Universidade Estadual de Maringá. |
| The upper Paraná River floodplain is characterized by the existence of several aquatic and transitional habitats between the aquatic and terrestrial environment, influencing the presence and distribution of aquatic macrophytes. Samples were taken from different places and permanent slides were prepared for analysis and capture of images with the objective of comparing the anatomy of the roots of eight species of emergent aquatic macrophytes. The species feature uniseriate epidermis with narrow and long cells, cortex composed of uniseriate or biseriate exodermis, with or without thickening, aerenchyma with great gaps, uniseriate endodermis, with or without thickening, continuous or interrupted pericycle, and central cylinder with variable number of xylem... |
| Tipo: Estudo anatômico |
Palavras-chave: 2.03.00.00-0; 2.03.02.03-7 Aerenchyma; Root; Alismataceae; Cyperaceae; Polygonaceae; Pontederiaceae Anatomia Vegetal Aerenchyma; Root; Alismataceae; Cyperaceae; Polygonaceae; Pontederiaceae. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5509 |
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| PINHEIRO,CARLOS G.; OLIVEIRA,JOÃO MARCELO S. DE; HEINZMANN,BERTA M.. |
| Abstract The aim of this study was to describe the structural characterization of Hesperozygis ringens (Benth.) Epling vegetative organs. For this purpose, leaves, stems and roots of the endangered Lamiaceae were collected from a population located in Santo Antão, Santa Maria municipality, Rio Grande do Sul, Brazil. Results demonstrated that the H. ringens leaf blade presents glandular and non-glandular trichomes as well as two morphs of diallelocytic stomata, which are usually found above the epidermis level. The petiole is concave on ventral face and convex on its dorsal face, containing glandular and non-glandular trichomes as well as stomata in the epidermis. These types of trichomes were also detected in the stem. In addition, the presence of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lamiaceae; Leaf blade; Petiole; Root; Stem. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000602887 |
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| Grego,Célia Regina; Vieira,Sidney Rosa; Xavier,Mauro Alexandre. |
| Tests to evaluate competition between plants, in general do not consider the soil spatial variability, nevertheless, the uniformity rarely is present and can not be assumed without verification. The aim of this work was to apply geostatistics to verify the spatial variability of the soil in an experimental field near Ribeirão Preto, SP, with sugarcane variety IACSP93-3046. Ninety seven geo-referenced samples, placed at distances of 10 m, were collected for soil chemical analysis, soil resistance to penetration and biometric evaluation of the sugar cane plant included number of tillers, stalk diameter, stalk height, estimated productivity (TSSe) and root density. Geostatistics has been applied by means of semivariogram, data interpolation via kriging and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Geostatistics; Soil chemistry; Soil resistance to penetration; Root; Tillers. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052010000500012 |
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| Madabula,Frederico Pedro; Santos,Railson Schreinert dos; Machado,Nata; Pegoraro,Camila; Kruger,Mariana Madruga; Maia,Luciano Carlos da; Sousa,Rogerio Oliveira de; Oliveira,Antonio Costa de. |
| ABSTRACT Drought stress affects crop quality and productivity. The challenge of increasing food availability for a growing worldwide demand relies on the development of tolerant cultivars that will need to be adapted to arid and semi-arid areas. In order to help the understanding of rice response to stress, the phenotypic response of 6 Brazilian rice cultivars and 2 different crosses between them were characterized under drought conditions. Since gene regulation is an important part of root morphological responses to stressful conditions, 4 genes related to auxin response and root modifications (OsGNOM1 CRL4, OsIAA1, OsCAND1 and OsRAA1) were evaluated. The expression of these genes was analyzed in stressed rice using public available microarray data and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oryza sativ; RT-qPCR; Root; Abiotic stress. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052016000400428 |
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| Stolf,Renata; Medri,Moacyr Eurípedes; Pimenta,José Antônio; Boeger,Maria Regina Torres; Dias,Jaqueline; Lemos,Noélle Giacomini; Oliveira,Maria Cristina Neves de; Brogin,Rodrigo Luís; Yamanaka,Naoki; Neumaier,Norman; Farias,José Renato Bouça; Nepomuceno,Alexandre Lima. |
| In a greenhouse experiment, morpho-anatomical and micromorphometrical analyses of two soybean cultivars, MG/BR46 (Conquista) and BR16-tolerant and sensitive to drought, respectively-were used to study their water-deficit-tolerance strategies. Drought treatments were applied at reproductive stages from R2 to R7, where evaluations were conducted at 30 days and 45 days after stress started, respectively. The total length of Conquista plants (shoot + root) was greater than of BR16 plants. Pod dry weight was adversely affected due to the lack of moisture, decreasing productivity even of Conquista plants. Both the cultivars had normal development of root hairs; however, it was observed a decrease in the cortex:central cylinder ratio in BR16 stressed for 30 days,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anatomy; Leguminous; Drought; Root. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000600002 |
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| Souza,Luiz Antonio de; Moscheta,Ismar Sebastião; Mourão,Káthia Socorro Mathias; Albiero,Adriana Lenita Meyer; Iwazaki,Maísa de Carvalho; Oliveira,Jonathas Henrique Georg de; Rosa,Sônia Maciel da. |
| Piperaceae species of forest remnants of Maringá, Paraná, Brazil present vegetative propagation through root or stem (stolon). This reproduction type was verified in Piper amalago L., P. arboreum Aublet, P. xylosteoides (Kunth) Steud., Peperomia parnassifolia Miq. and Ottonia martiana Miq. Root and stem branches of these species were analyzed anatomically. Results indicated that the vegetative propagation in Piperaceae should be studied in other forests. New and additional studies should be made if the structural variations were induced environmentally or fixed genetically. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Piperaceae; Vegetative reproduction; Stolon; Stem; Root. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000600006 |
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| Xing,Dan; Wang,Zhenhong; Xiao,Jiujun; Han,Shiyu; Luo,Chaobin; Zhang,Aimin; Song,Lala; Gao,Xiubin. |
| ABSTRACT: Arbuscular mycorrhizal fungi (AMF) have been attracted more scientific attentions due to its critical role in enhancement of drought tolerance of plants for growth and vegetation restoration in karst fragile ecosystem. However, scientists know little about the AMF composition and diversity occurring in root systems of mulberry (Morus sp.), and in karst habitats which return land use from mulberry forestry, as well as the effects of soil environment change on the diversity of the AMF communities. To understand: (1) the AMF community composition and diversity at different stage of returning cropland to forest; and (2) the effects of soil environment change on the diversity of the AMF communities, soil and mulberry root samples were collected from... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycorrhizal biotechnology; Morus sp.; Rocky desertification; Root; Soil properties.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018001000401 |
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| SOUZA,NÁTALI M.; WEIRICH NETO,PEDRO H.. |
| Among studies focused on increasing soybean grain yield, the ones related to sowing process are the most significant. Considering that soybean has an epigeal emergence, it becomes difficult to hint at the length covered by hypocotyl up to soil surface, or the actual planting depth. This study aimed to find an indicator that allows the identification of an ideal soybean planting depth. For this purpose, two complementary assays has been carried out in a greenhouse. The first aimed to identify structures that could be indicators of seed planting depth, on a medium-textured soil from Campos Gerais region, in the state of Paraná, Brazil. Spring NK 8350 cultivar seeds were sown at five theoretical depths (1, 2, 3, 4 and 5 cm). As seedlings emerged, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max L.; Planting process; Root. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162015000100128 |
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