1. Coral-virus interactions: A double-edged sword?

   • Madeleine J. H. van Oppen
   • Jo-Ann Leong
   • Ruth D. Gates

   Review article Pages: 1 - 8

2. Monthly fluctuations in radial growth of individual lobes of the lichenParmelia conspersa (Erhr. ex Ach.) Ach.

   • R. A. Armstrong

   OriginalPaper Pages: 9 - 15

3. Arbuscular mycorrhizas and dark septate endophytes in bromeliads from South American arid environment

   • M. A. Lugo
   • M. G. Molina
   • E. M. Crespo

   OriginalPaper Pages: 17 - 21

4. Diazotrophic endophytes of native black cottonwood and willow

   • Sharon L. Doty
   • Brian Oakley
   • James T. Staley

   OriginalPaper Pages: 23 - 33

5. Importance of ferric chelate reductase activity and acidification capacity in root nodules of N₂-fixing common bean (Phaseolus vulgaris L.) subjected to iron deficiency

   • Tarek Slatni
   • Abdelmajid Krouma
   • Chedly Abdelly

   OriginalPaper Pages: 35 - 42

6. Cell proliferation and growth inZoothamnium niveum (Oligohymenophora, Peritrichida) — Thiotrophic bacteria symbiosis

   • Ulrike Kloiber
   • Bettina Pflugfelder
   • Monika Bright

   OriginalPaper Pages: 43 - 50

7. Spirochete round bodies Syphilis, Lyme disease & AIDS: Resurgence of “the great imitator”?

   • Lynn Margulis
   • Andrew Maniotis
   • Michael J. Chapman

   Position Paper Pages: 51 - 58

8. Announcements

   Announcement Pages: 59 - 59