Air-space tissue in plants. II

Sifton, H. B.

doi:10.1007/bf02872447

Cited by 46 publications

(9 citation statements)

References 32 publications

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“…Though the formation of lacunae was not critically studied in this investigation, their formation appears to follow the general pattern of other grasses (Beckel, 1956;McPherson, 1939;Sifton, 1945Sifton, , 1957. Certain ofthe cortical cells collapse, pulling away from adjoining radial walls so that the radial walls of the same cell come together forming the "spokes"; the area left between the collapsed cells forms the large lacunae.…”

Section: Materials and Methods-rice Seedsmentioning

confidence: 79%

Observations on the Root Anatomy of Rice (Oryza Sativa L.)

Clark

Harris

1981

American J of Botany

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Rice plants were grown hydroponically and roots were prepared for light and electron microscopy using standard techniques. The roots are bounded by an epidermis, exodermis, and fibrous layer. The exodermis has a suberin lamella along its inner tangential wall. The fibrous layer is composed of thick‐walled lignified cells with little pitting. The cortical parenchyma is compact when young, but expands and separates to form a zone of cell walls and air spaces in a spoked arrangement. Supporting columns of living parenchyma cells are occasionally present, particularly near lateral roots. The endodermis is typical for grasses with Casparian strips, suberin lamellae, and tertiary state walls with numerous pits. The pericycle and pith become sclerified. Protoxylem elements alternate with protophloem in the young root; later, early metaxylem, late metaxylem, and metaphloem proliferate. The exodermis, fibrous layer, lacunate cortex, and endodermis appear to present a formidable barrier to radial ion movement in the mature portions of the root.

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Section: Materials and Methods-rice Seedsmentioning

confidence: 79%

Observations on the Root Anatomy of Rice (Oryza Sativa L.)

Clark

Harris

1981

American J of Botany

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“…They were found especially in the stolons. The term "aerenchyma" is used for highly organized air spaces with distinct developmental patterns (Jung et al, 2008;Justin and Armstrong, 1987;Seago et al, 2005;Sifton, 1945Sifton, , 1957.…”

Section: Resultsmentioning

confidence: 99%

“…Air space tissues take two general forms, cavities (especially in pith but sometimes also in cortex) and aerenchymas (organized tissues, structured during their development; see Jung et al, 2008;Justin and Armstrong, 1987;Seago et al, 2005;Sifton, 1945Sifton, , 1957. In grass roots, lysigenous aerenchyma is widespread (Jung et al, 2008;Justin and Armstrong, 1987;Seago et al, 2005); schizolysigeny is a more appropriate term.…”

Section: Discussionmentioning

confidence: 98%

Root and stem anatomy and histochemistry of four grasses from the Jianghan Floodplain along the Yangtze River, China

Yang

Zhang

Zhou

et al. 2011

Flora - Morphology, Distribution, Functional Ecology of Plants

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“…Esse tecido foi bem documentado por Arber (1920), Sifton (1945Sifton ( , 1957, Sculthorpe (1967), Kaul (1976), Justin & Armstrong (1987) e Laan et al (1989. Em B. salzmanii e B. monnierioides o sistema lacunar é contínuo através da planta, concordando com as observações feitas por Williams & Barber (1961) e Sculthorpe (1967.…”

Section: Discussionunclassified

Anatomia das raízes de Bacopa salzmanii (Benth.) Wettst. Ex Edwall e Bacopa Monnierioides (Cham.) Robinson (Scrophulariaceae) em ambientes aquático e terrestre

Bona

Morretes

2003

Acta Bot. Bras.

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Bonito e no Pantanal do Mato Grosso do Sul. As análises foram feitas do ápice à base da raiz, enfatizando a origem e desenvolvimento dos tecidos. O meristema apical apresenta a mesma estrutura nas duas espécies e não sofre alterações marcantes com a mudança do ambiente. Todos os tecidos se originam de três camadas distintas, na região do promeristema. A endoderme jovem é meristemática e dá origem ao córtex. O aerênquima é abundante e os septos podem conter espessamento em fi. A exoderme é unisseriada e composta por células curtas e longas. A coifa das duas espécies é pouco desenvolvida e apresenta estrutura semelhante nos dois ambientes.Palavras-chave -Bacopa sp., anatomia da raiz, aerênquima, planta aquática ABSTRACT -(Anatomy of roots of Bacopa salzmanii (Benth.) Wettst. Ex Edwall and B. monnierioides (Cham.) Robinson (Scrophulariaceae) in aquatic and terrestrial environments). This work describes the anatomy of roots of Bacopa salzmanii (Benth.) Wettst. Ex Edwall and B. monnierioides (Cham.) Robinson and its adaptations to aquatic and terrestrial environments. Both species were collected in the city of Bonito and in the Pantanal (State of Mato Grosso do Sul). Adventitious roots were analyzed, from the apex to the base of the root. Tissues origin and development were emphasized. The apical meristem presents the same structure in both species and it is not significantly altered by the environmental changes. All the tissues are originated from three different layers, in the region of the promeristem. The young endodermis is meristematic and originates the cortex. The aerenchyma is abundant and the septa may contain phi thickenings. The exodermis is uniserial and composed of short and elongated cells. Root cap of both species is few developed in both environments.

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Air-space tissue in plants. II

Cited by 46 publications

References 32 publications

Observations on the Root Anatomy of Rice (Oryza Sativa L.)

Observations on the Root Anatomy of Rice (Oryza Sativa L.)

Root and stem anatomy and histochemistry of four grasses from the Jianghan Floodplain along the Yangtze River, China

Anatomia das raízes de Bacopa salzmanii (Benth.) Wettst. Ex Edwall e Bacopa Monnierioides (Cham.) Robinson (Scrophulariaceae) em ambientes aquático e terrestre

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