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EFFECT OF THE NON‐MYCORRHIZAL PIONEER PLANT SALSOLA KALI L. (CHENOPODIACEAE) ON VESICULAR‐ARBUSCULAR MYCORRHIZAL (VAM) FUNGI
Author(s) -
Schmidt Steven K.,
Reeves F. Brent
Publication year - 1984
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1984.tb11955.x
Subject(s) - biology , chlamydospore , kali , glomus , botany , propagule , mycorrhiza , colonization , agronomy , fungus , spore , symbiosis , ecology , genetics , bacteria
The effects of Salsola kali (Russian thistle) on chlamydospore numbers and viable propagules of the vesicular‐arbuscular mycorrhizal fungus Glomus fasciculatum were monitored for 18 wk under laboratory conditions. When S. kali or Agropyron smithii (a mycorrhizal species) were grown for 6 wk, the number of chlamydospores in soil declined to the same number as in the control (non‐planted) soil; the number of chlamydospores in the S. kali and control soils continued to decline over the 18 wk period. However, using a Zea mays bioassay, the per cent colonization of corn roots obtained from soil in which S. kali grew for 6, 12, or 18 wk was significantly greater than in the control soil. These results suggest that S. kali may stabilize mycorrhizal infectivity of disturbed soils for at least short periods of time.