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Registro Completo |
Biblioteca(s): |
Embrapa Pantanal. |
Data corrente: |
17/03/1999 |
Data da última atualização: |
17/03/1999 |
Autoria: |
HATTERSLEY, P. W.; PERRY, S. |
Afiliação: |
Taxonomy Unit, Research School of Biological Sciences. The Australian National University. |
Título: |
Occurrence of the suberized lamella in leaves of grasses of different photosynthetic type. II. In herbarium material. |
Ano de publicação: |
1984 |
Fonte/Imprenta: |
Australian Journal of Botany, v.32, n.5, p.465-473, 1984. |
Idioma: |
Inglês |
Conteúdo: |
Dead air-dried leaves have been conventionally prepared for transmission electron microscopy to ascertain if the occurrence of a suberized lamella in cell walls can be detected. Our species sample includes representatives of fall known photosynthetic types within the Poaceae (viz. C3, C4 NAD-malic enzyme type, C4 NADP-malic enzyme type and PEP carboxykinase type). each photosynthetic type exhibits a characteristic pattern of suberized lamella occurrence in mestome sheath and/or 'photosynthetic carbon reduction' (PCR or 'Kranz') cell was, consistent with that in fixed living material. Plasmodesmatal strucuture, and even on occasion chloroplast structure, is remarkably well preserved. Leaves from herbarium specimens, therefore, could be used to assign C4 species to their C4 acid decarboxylation type. This has potential application in large-scale systematic surveys for which living material may be difficult to obtain. |
Palavras-Chave: |
Folha de grama; Herbarium material; Leaves of grasses; Material de herbario; Suberized lamella. |
Thesagro: |
Fotossíntese. |
Thesaurus Nal: |
photosynthesis. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01588naa a2200217 a 4500 001 1794372 005 1999-03-17 008 1984 bl --- 0-- u #d 100 1 $aHATTERSLEY, P. W. 245 $aOccurrence of the suberized lamella in leaves of grasses of different photosynthetic type. II. In herbarium material. 260 $c1984 520 $aDead air-dried leaves have been conventionally prepared for transmission electron microscopy to ascertain if the occurrence of a suberized lamella in cell walls can be detected. Our species sample includes representatives of fall known photosynthetic types within the Poaceae (viz. C3, C4 NAD-malic enzyme type, C4 NADP-malic enzyme type and PEP carboxykinase type). each photosynthetic type exhibits a characteristic pattern of suberized lamella occurrence in mestome sheath and/or 'photosynthetic carbon reduction' (PCR or 'Kranz') cell was, consistent with that in fixed living material. Plasmodesmatal strucuture, and even on occasion chloroplast structure, is remarkably well preserved. Leaves from herbarium specimens, therefore, could be used to assign C4 species to their C4 acid decarboxylation type. This has potential application in large-scale systematic surveys for which living material may be difficult to obtain. 650 $aphotosynthesis 650 $aFotossíntese 653 $aFolha de grama 653 $aHerbarium material 653 $aLeaves of grasses 653 $aMaterial de herbario 653 $aSuberized lamella 700 1 $aPERRY, S. 773 $tAustralian Journal of Botany$gv.32, n.5, p.465-473, 1984.
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Embrapa Pantanal (CPAP) |
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