OBSERVATIONS ON FREE-LIVING TREBOUXIA DE PUYMALYAND PSEUDOTREBOUXIA ARCHIBALD, AND EVIDENCE THAT BOTH SYMBIONTS FROM XANTHORIA PARIETINA (L.) TH. FR. CAN BE FOUND FREE-LIVING IN NATURE

Authors

  • P. BUBRICK,

    1. Department of Botany The George S. Wise Faculty of Life Sciences, Tel Aviv University, 69978, Tel Aviv, Israel
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  • MARGALITH GALUN,

    Corresponding author
    1. Department of Botany The George S. Wise Faculty of Life Sciences, Tel Aviv University, 69978, Tel Aviv, Israel
      ‡To whom correspondence should be directed.
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  • A. FRENSDORFF

    1. Department of Microbiology, The George S. Wise Faculty of Life Sciences, Tel Aviv University, 69978, Tel Aviv, Israel
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‡To whom correspondence should be directed.

Summary

The presence of free-living Trebouxia and/or Pseudotrebouxia is documented. Several free-living phycobionts were brought into culture and compared to the cultured Xanthoria parietina phycobiont. With the aid of both morphological and immunological criteria, we provide evidence that both the mycobiont and phycobiont of X. parietina can be found free-living in nature. The potential for resynthesis between bionts under natural conditions is discussed.

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