Mycorrhizal colonisation in plants from intermittent aquatic habitats
In: Aquatic Botany. Elsevier Science: Tokyo; Oxford; New York; London; Amsterdam. ISSN 0304-3770; e-ISSN 1879-1522, more
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| Keywords |
Anatomical structures > Body organs > Plant organs > Rhizomes
Colonisation
Flooding
Taxa > Species > Amphibiotic species
Slovenia [Marine Regions]
Fresh water |
| Author keywords |
arbuscular mycorrhiza; dark septate endophyte; intermittent aquatichabitat; flooding; amphibious plant; aerenchyma |
| Authors | | Top |
- Sraj-Krzic, N.
- Pongrac, P.
- Klemenc, M.
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- Kladnik, A.
- Regvar, M.
- Gaberscik, A.
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| Abstract |
Several plant species with amphibious characteristics from intermittent aquatic habitats were examined for colonisation with arbuscular mycorrhizal fungi (AM), dark septate endophytes (DSE) and the ratio of aerenchyma in root tissue. We studied submerged specimens of Alisma plantago-aquatica, Mentha aquatica, Myosotis scorpioides, Oenanthe fistulosa, Gratiola officinalis, Glyceria fluitans, Sium latifolium and Teucrium scordium. In the first four, we also examined the emerged growth forms, which were grown under experimental conditions. Roots of all species were mycorrhizal and showed AM and DSE colonisation. The results suggest that AM colonisation may also be abundant in plants of aquatic environment. Arbuscules were not found in submerged specimens of M. aquatica, O. fistulosa and S. latifolium. The AM colonisation was generally higher in emerged specimens as compared to submerged ones. The aerenchyma ratio in root cross-sections ranged from 10 to 50% and in most cases did not differ between submerged and emerged specimens. No clear relationship between AM colonisation and aerenchyma ratio was recognized, while a positive correlation between AM and plant available phosphorous was established. |
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