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Developmental anatomy of Cyperus laxus (non-Nranz) and Fimbristylis dichotoma (Kranz) (Cyperaceae, Poales) and tissue continuity Anais da ABC (AABC)
MARTINS,SHIRLEY; SCATENA,VERA L..
The Cyperaceae species are present in different ecosystems and constitute the herbaceous extract. Of the approximately 5,500 species of the family; a third has Kranz anatomy, representing an important characteristic of the taxonomy and phylogeny of the group. In Cyperus laxus L. (non-Kranz) and Fimbristylis dichotoma Vahl (Kranz), development begins with germination that is marked by the emergence of the coleoptiles, followed by the primary root, which is ephemeral. The rhizome originates from the mesocotyl and it promotes the vascular connection between the roots, leaves and scapes. The continuity of the tissues is evidenced by the presence of an endodermis and pericycle in all vegetative organs. Leaves and scapes differ between the two species by the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pericycle; Endodermis; Casparian strips; Seedling.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000200605
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Anatomical root variations in response to water deficit: wild and domesticated common bean (Phaseolus vulgaris L) Biol. Res.
Peña-Valdivia,Cecilia B; Sánchez-Urdaneta,Adriana B; Meza Rangel,Joel; Juárez Muñoz,Juana; García-Nava,Rodolfo; Celis Velázquez,Raquel.
Root anatomical responses to water deficit are diverse and regulation of water uptake strongly depends on plant anatomy. The ancestors of common bean (Phaseolus vulgaris L.) cultivars are the wild common beans. Because wild beans adapt and survive well in theon atural environment, it is hypothesized that wild common bean roots are less affected than those of domesticated beans at low substrate water potential (ψW). A wild common bean accession from Chihuahua Mexico and cv. Bayomex were studied. Seedlings with a mean root length between 3 and 4 cm were maintained for 24 h in vermiculite at ψW of -0.03 (well hydrated), -0.65, -1.48 and -2.35 MPa (partially dry). Ten anatomical characteristics of differentiation and cell division in root...
Tipo: Journal article Palavras-chave: Endodermis; Protoderm; Seedlings; Water potential; Xylem.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602010000400006
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Morfoanatomía e histoquímica de cuatro Asteraceae nativas del Bosque Chaqueño Serrano (Córdoba, Argentina) Boletín de la Sociedad
Tosoratto,Natalí; Cosa,María Teresa; Delbón,Natalia.
El Bosque Chaqueño Serrano se caracteriza por un clima semiárido; las especies que habitan en él presentan una serie de modificaciones relacionadas principalmente al balance hídrico. En este hábitat la familia Asteraceae es una de las más numerosas, nucleando gran cantidad de especies con propiedades medicinales. Cuatro de ellas fueron estudiadas en el presente trabajo, ellas son: Austroeupatorium inulifolium, Baccharis salicifolia, Chromolaena hookeriana y Ophryosporus axilliflorus. Se indagó sobre los órganos vegetativos aéreos con el objetivo de comprender las estrategias adaptativas que presentan en relación al ambiente en que viven, detectar estructuras productoras de principios activos e inferir los compuestos químicos que ellas producen. En las...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Austroeupatorium inulifolium; Baccharis salicifolia; Chromolaena hookeriana; Ophryosporus axilliflorus; Conducto secretor; Tricoma; Endodermis; Banda de Caspary.
Ano: 2016 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722016000400004
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