Naslov
Varying efficiency of mycorrhizal establishment in pot cultures - plant hosts' role

Autori
Radić, Tomislav ; Hančević, Katarina ; Protega, Ivan ; Pezo, Ivan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Ecology of Soil Microorganisms 2011, Book of abstracts / Chronakova A, Šimek M, Kyselkova M, Hynšt J, Baldrian P, Pospišek M, Krištufek V, Elhotova D (Eds.) - Prag : Žaket s.r.o., 2011, 129-129

Skup
Ecology of Soil Microorganisms 2011, Microbes as Important Drivers of Soil Processes

Mjesto i datum
Prag, Češka Republika, 27.04.2011. - 01.05.2011

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
mycorrhizae; grapevine; pot cultures; plant neighbours

Sažetak
The specificity of plant host – arbuscular mycorrhizal fungi (AMF) relation has been intensively reconsidered recently. It is now recognized that in complex interactions of plant and fungal assemblages AMF community may be strongly affected by differential effects of individual plant species as well as vice versa. Aim of this study was to estimate the importance of plant host selection for pot cultures of native AMF from grapevine. The hypothesis that grapevine seedlings would be the most suitable hosts was examined. However, plants and AM fungi rarely exist as monocultures in nature. In vineyards weeds interfere with neighbouring grapes and thus directly or indirectly inhibit or enhance growth and distribution of associated AMF. Therefore, as potential hosts we used two possibly abundant weeds in explored vineyard (Plantago lanceolata L. and Tanacetum cinerariifolium /Trevir/Vis) as well as their combinations with the grape in the same pots. Source of infection was field soil from grapevine rhizosphere and grapevine younger roots. In grape, grape + T. cinerariifolium, grape + P. lanceolata and grape + T. cinerariifolium + P. lanceolata combinations intraradical (% of root colonization, % of arbuscules, % of vesicles, % of hyphae only) and extraradical AMF parameters (extraradical mycelium length-ERM, sporal abundance) were analyzed two, four and six months after inoculation, as well as root electrolyte leakage (REL). Additionally, the influence of density of each of plant host on mycorrhizal development was examined. Both, plant hosts’ identity and density influenced some of the parameters observed. Grape, T. cinerariifolium and their combination enabled significantly higher abundance of spores, root colonization, ERM and vesicles incidence comparing to P. lanceolata and grape + P. lanceolata combination. Four plants of the same species versus one plant host were less suitable for number of spores in the case of grape, while more suitable for vesicles abundance in T. cinerariifolium case. REL significantly differed between treatments only at first measurement. In conclusion, when establishing pot cultures the choice of plant host or plant hosts combination is a factor that can significantly alter the extent and characteristics of mycorrhizal development. This has important implication for understanding the natural ecosystems, where various plants intensively communicate, having variable effects on mycorrhizal symbioses establishment.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija), Prehrambena tehnologija

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