New Zealand Journal of Botany abstracts

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Endogonaceous Mycorrhizas Synthesised in Leptospermum (Myrtaceae)

G. T. S. Baylis

Botany Department, University of Otago, Dunedin

Abstract Honey-coloured sessile Endogone spores produced mycorrhizas in Leptospermum scoparium. Control plants inoculated with crushed spores formed none. They grew steadily, but much more slowly than mycorrhizal plants. Lack of growth stimulation by other nutrients established that P was the element limiting growth. The steamed soil used contained 8 ppm Truog available phosphorus. The range of P availability over which L. scoparium benefits from a phycomycetous mycorrhiza lies below that for Coprosma robusta. The same inoculum produced mycorrhizas in Solarium nigrum and Lolium perenne. Solarium nigrum grew as well without mycorrhizas as Leptospermum scoparium did with them and showed only a non-significant growth increase when infected. Lolium perenne produced the largest plants in the experiment mostly with little or no infection.

(Received 14 December 1970) New Zealand Journal of Botany 9: 293-6

PDF file of entire paper: medium quality (199K); (scanned from paper original: notes about this process)

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