01979naa a2200397 a 450000100080000000500110000800800410001910000190006024502010007926000090028052008100028965000280109965000210112765000220114865000210117065000090119165000210120065000150122165000230123665000160125965000140127565000260128965000090131565000120132465300160133665300220135265300180137465300190139265300110141165300190142265300160144165300260145765300180148370000180150177300620151912787352024-05-28 1990 bl uuuu u00u1 u #d1 aBOUGHER, N. L. aEffects of high soil moisture on formation of ectomycorrhizas and growth of karri (Eucalyptus diversicolor) seedlings inoculated with Descolea maculata, Pisolithus tinctorius and Laccaria laccata. c1990 aSeedlings were raised in a greenhouse in a yellow sand with a soil moisture gradient ranging from -4.5 kPa (above field capacity) to -0.14 kPa (near waterlogged). All fungi enhanced growth of seedlings above that of uninoculated seedlings, but in soils near saturation there was no response to inoculation. Reduced mycorrhizal formation in relation to increasing soil moisture occurred to various degrees for all fungi. This was particularly marked with P. tinctorius. In contrast, L. laccata maintained a relatively high number of mycorrhizal roots at all moisture levels applied, except at the wettest soil treatment. An isolate of D. maculata from a swamp environment did not produce a greater number of mycorrhizal roots at high soil moisture than an isolate of this species from a forest environment. aEucalyptus diversicolor aLaccaria laccata amycorrhizal fungi aplant physiology asoil asoil inoculation asoil water asoil water content aCrescimento aMicorriza aPisolithus Tinctorius aSolo aUmidade aBroadleaves aDescolea Maculata aEctomicorriza aEctomycorrhiza aGrowth aMicorriza/ecto aMycorrhizas aplant water relations aSoil moisture1 aMALAJCZUK, N. tNew Phytologist, Cambridgegv. 114, n. 1, p. 87-92, 1990.