کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2053641 1075505 2011 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Pseudoxylaria as stowaway of the fungus-growing termite nest: Interaction asymmetry between Pseudoxylaria, Termitomyces and free-living relatives
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
Pseudoxylaria as stowaway of the fungus-growing termite nest: Interaction asymmetry between Pseudoxylaria, Termitomyces and free-living relatives
چکیده انگلیسی

Though inconspicuous in healthy nests, Pseudoxylaria species are almost always present and overgrow deteriorating fungus-growing termite gardens. Whether these fungi are detrimental to the fungus-garden, benign, or even beneficial is unclear. We hypothesize that Pseudoxylaria is a stowaway that practices a sit-and-wait strategy to survive in the termite nest. Using isolates from three different termite genera to test our hypothesis, we compared Pseudoxylaria’s growth on 40 carbon sources with that of Termitomyces and tested its interaction with Termitomyces. The C-source use of both fungi largely overlapped, indicating potential for competition. One-to-one interactions between Pseudoxylaria, Termitomyces and free-living relatives showed that Pseudoxylaria and Termitomyces strains interacted differently with each other than with each other’s free-living relatives. Both fungi grew less together than when growing alone, confirming that they compete. Pseudoxylaria was more strongly inhibited by Termitomyces than free-living Xylariaceae were. The results suggest that the symbiotic lifestyle adopted by Pseudoxylaria goes together with reduced antagonism towards Termitomyces, consistent with Pseudoxylaria being a stowaway.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fungal Ecology - Volume 4, Issue 5, October 2011, Pages 322–332
نویسندگان
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