, 26:293 | Cite as

Post-anhydrobiotic viability ofpratylenchus thornei andmerlinius brevidens

  • M. Talavera
  • H. Valor
  • A. Tobar
Research Paper


After natural desiccation in the field, anhydrobiotic populations ofPratylenchus thornei Sher & Allen andMerlinius brevidens (Allen) Sidiqqi were treated in three different ways: some were kept dry to maintain nematodes in the anhydrobiotic stage; some were rehydrated and then allowed to dry again to induce a new desiccation cycle; and some were rehydrated and maintained as such, to reactivate and keep nematodes active.P. thornei populations from the dry treatment had a greater survival rate than the two other treatments. Culturing of the nematodes under wheat revealed that the three treatments did not alter the ability ofP. thornei to penetrate the roots, but nematodes given two cycles of desiccation had a greater rate of reproduction than those exposed to one desiccation cycle and kept in dry soil for a longer period (dry treatment). Survival ofM. brevidens rehydrated and retained in the active state was lower than that of nematodes undergoing the two other treatments.

Key Words

Anhydrobiosis Pratylenchus thornei Merlinius brevidens root lesion nematode survival viability 


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Copyright information

© Springer Science + Business Media B.V. 1998

Authors and Affiliations

  1. 1.Dep. de Agroecologiá y Proteccíon VegetalEstación Experimental del Zaidín, CSICGranadaSpain

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