Effects of root- and stolen-infecting fungi on root-colonizing nematodes of white clover

M Zahid, Geoffrey Gurr, Alex Nikandrow, M Hodda, W Fulkerson, Helen Nicol

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


The effects on white clover (Trifolium repens ) of different combinations of the nematodes Meloidogyne trifoliophila , Helicotylenchus dihystera and Heterodera trifolii and nine stolon-infecting and three root-infecting fungi were studied in a glasshouse experiment. The presence of the fungus Phytophthora megasperma alone increased (P < 0·001) root-rot severity and reduced (P < 0·001) plant growth. Other species combinations, such as Phoma nebulosa and Alternaria alternata , interacted and increased root-rot severity. Combinations of P. megasperma with Pythium irregulare , and P. nebulosa with Phoma medicaginis or A. alternata , increased M. trifoliophila populations. Several other fungi (P. irregulare , P. nebulosa , Colletotrichum coccodes , Macrophomina phaseolina , P. medicaginis and Phoma sp.) interacted with the nematode M. trifoliophila causing severe root-knot symptoms. The results indicated that fungi and nematodes interacted to cause root and stolon rot and reduced yields, and that poor persistence of white clover in pastures is likely to be a problem with a complex etiology.
Original languageEnglish
Pages (from-to)242-250
Number of pages9
JournalPlant Pathology
Issue number2
Publication statusPublished - 2002


Dive into the research topics of 'Effects of root- and stolen-infecting fungi on root-colonizing nematodes of white clover'. Together they form a unique fingerprint.

Cite this