Volume 18, Issue 2
August 1943, pages 21-51
pp 21-35 August 1943
Eight new species of myxosporidians belonging to the generaLeptotheca, Ceraiomyxa, Myxidium, Zschokkella andMyxobolus have been described.
A new variety ofMyxidium procerum is described.
A detailed description ofChloromyxum amphipnoui Ray is given and it is recorded from a new host.
Myxidium leiberkühn Bütschli is recorded from a new host in India.
Thelohanellus rohitœ (Southwell and Prasad) is recorded for the first time from Calcutta.
Infection withMyxobolus catlœ has been briefly discussed.
pp 36-40 August 1943
pp 41-44 August 1943
pp 45-51 August 1943
Phytophthora phaseoli Thaxter is unable to grow on a medium containing mineral salts, dextrose and inorganic nitrogen but requires for its growth a special amino acid (d-alanine) supplemented with thiamin. Other substances found to be suitable as nitrogen sources are peptone, hydrolysed peptone, casein, buttermilk, lentil extract, yeast extract and lima bean infusion, all of which, excepting casein, also supply the necessary growth substance. The fungus suffers from thiamin deficiency. Ammonium ion is found to be toxic for the growth of the fungus.