Biliografia
- Bottomley , W. B. 1909 . Some effects of nitrogen-fixing bacteria on the growth of non-leguminous plants . Proc. Roy. Soc. B. , 81 : 287
- Gerola , F. M. and Grilli , M. 1955 . Ricerche sullo stato e sulla localizzazione degli acidi nucleici nei tubercoli radicali di « Vicia, Phaseolus » e « Robinia » . Ist. Lomb. di Sc. e Lett. , 88 : 603 – 606 .
- Gerola , F. M. and Vannini , E. 1949 . La colorazione con verde metile-pironina in mezzo tamponato nella ricerca degli acidi ribonucleici . Boll. Soc. It. Biol. Sper. , 25 : 1 – 3 .
- Hall , W. and Clauss , G. 1962 . Electronmicroscope studies on ultrathin sections of Oscillatoria . Protoplasma , 54 : 355 – 368 .
- Hopwood , D. A. and Glauert , A. M. 1960 . The fine structure of the nuclear material of the bleu-green alga, Anabaena cylindrica Lemm . J Biophys. Biochem. Cytol. , 8 : 813 – 822 .
- Mollenhauer , H. H. 1959 . Permanganate fixation of plant cells . J. Biophys. Biochem. Cytol. , 6 : 431 – 435 .
- Spratt , E. R. 1911 . Some observations on the life-history of Anabaena cycadideae . Ann. of. Bot. , 25 ( 48 ) : 369 – 380 .