The sub-cellular localization of some nitrogen compounds within the leaf cavities ofAzolla filiculoides Lam. was obtained by means of electron spectroscopic imaging (ESI) and electron energy loss spectroscopy (EELS). The analyses were performed on ultrathin unstained sections of differentAzolla leaf cavities which contain epidermal hairs,Anabaena azollae Strasb. and bacteria. Net nitrogen distributions were visualized by image analysis, and nitrogen peaks were evidenced in spectra recorded in the same areas. Different distributions of nitrogen compounds were observed within the leaf cavities along the stem, in particular inside the epidermal hairs ofAzolla and the vegetative cells and heterocysts ofA. azollae.

Albertano, P., Canini, A., Grilli Caiola, M. (1993). Sub-cellular distribution of nitrogen compounds in Azolla and Anabaena by ESI and EELS analysis. PROTOPLASMA, 173, 158-169 [10.1007/BF01379004].

Sub-cellular distribution of nitrogen compounds in Azolla and Anabaena by ESI and EELS analysis

CANINI, ANTONELLA;
1993-01-01

Abstract

The sub-cellular localization of some nitrogen compounds within the leaf cavities ofAzolla filiculoides Lam. was obtained by means of electron spectroscopic imaging (ESI) and electron energy loss spectroscopy (EELS). The analyses were performed on ultrathin unstained sections of differentAzolla leaf cavities which contain epidermal hairs,Anabaena azollae Strasb. and bacteria. Net nitrogen distributions were visualized by image analysis, and nitrogen peaks were evidenced in spectra recorded in the same areas. Different distributions of nitrogen compounds were observed within the leaf cavities along the stem, in particular inside the epidermal hairs ofAzolla and the vegetative cells and heterocysts ofA. azollae.
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore BIO/01
English
Con Impact Factor ISI
Azolla-Anabaena symbiosis - Ultrastructure - Nitrogen distribution - Electron spectroscopic imaging - Electron energy loss spectroscopy
Albertano, P., Canini, A., Grilli Caiola, M. (1993). Sub-cellular distribution of nitrogen compounds in Azolla and Anabaena by ESI and EELS analysis. PROTOPLASMA, 173, 158-169 [10.1007/BF01379004].
Albertano, P; Canini, A; Grilli Caiola, M
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/64270
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