Matches in SemOpenAlex for { <https://semopenalex.org/work/W78561671> ?p ?o ?g. }
Showing items 1 to 29 of
29
with 100 items per page.
- W78561671 abstract "Az invazios novenyek egyre jelentősebb termeszetvedelmi problemat okoznak. Kutatasainkban a novenyi invazio okofiziologiai hatteret elemeztuk. Hipotezisunk volt, hogy az invazios fajok jelentősebb kornyezeti heterogenitast elnek meg, mint nem terjedő honos rokonaiknak, igy elettani műkodesuk es kapcsolodo morfologiajuk - anatomiajuk szorosabban illeszkedik fenotipusosan a valtozo kornyezethez. Mersekeltovi pazsitfuvekre (Poaceae) szoritkoztunk, az elterjedesi teruletuk klimatikus hatarat megkozelitő C4-es fotoszintezisűekre kulonos tekintettel. Terepi atultetesi kiserletekben a losz erdőspusztai lokalis terfoglalo C3-as Brachypodium pinnatum nagyfoku fotokemiai, morfologiai, fenologiai es mikorrhizaltsagi plasztikussagot mutatott, a level anatomiaja viszont alig modosult. A fenyintenzitas gyors valtozasaira a C4-es fuvek kozott az invaziosak level CO2 es H2O gazcsereje erzekenyebben reagalt, mint a nem invaziosake, ahol a vizhasznositasi hatekonysag megőrzese a prioritas. C4-es fuveknel a level morfologia es durva szerkezet gyenge fennyel szemben plasztikusabb az invaziosaknal, mint a nem invaziosaknal, am ebben nem maradtak el a C4-es invazosak a C3-asok mogott. A magvak csirazasat a hőkezeles C3-as fuveknel altalaban nem serkentette, C4-eseknel legtobbszor igen, de nem volt kulonbseg az invazos alkat szerint. Az invazios fuvek uj kozossegukben rendszeresen letesitenek ugyan VA mikorrhiza-kapcsolatot, am ennek intenzitasa es hatekonysaga elmarad a honos fajoketol. | Here we studied the ecophysiological background of grass invasions. It was hypothesized that invasive species face a greater degree of environmental heterogeneity than their stationary non-invasive relatives, thus invasives should better adjust their physiology and associated morphology and anatomy to variations in the environment. Temperate grasses (Poaceae) were studied, particularly C4 species close to the climatic limit of distribution. In field transplant experiments in a semiarid loess grassland the C3 Brachypodium pinnatum of high capacity for local spread displayed high degree of plasticity in photochemistry, shoot morphology, phenology and VA mycorrhizal association, but leaf anatomy remained invariant. Among C4 grasses leaf CO2 and H2O gas exchange responded sensitively to rapid changes in light intensity for invasives, but less so for non-invasives, with maintenance of high water use efficiency enjoying priority in response. In C4 grasses when developed under moderate light leaf morphology and coarse structure were more plastic for invasives than for non-invasives, and there was no difference in this capacity between C3 and C4 invasive grasses. Heat treatment usually had no effect on the germination of C3 grasses, mostly enhanced that of C4 grasses, but there was no difference according to invasion capacity. Invasive grasses establish VA mycorrhizal symbioses in their new habitat, but the intensity and efficiency of association remains below that of local grasses." @default.
- W78561671 created "2016-06-24" @default.
- W78561671 creator A5026469312 @default.
- W78561671 creator A5055852015 @default.
- W78561671 creator A5062288806 @default.
- W78561671 date "2008-01-01" @default.
- W78561671 modified "2023-09-23" @default.
- W78561671 title "Ökofiziológiailag plasztikusabbak-e az invázív növények nem invázív rokonaiknál? = Are invasive plants ecophysologically more plastic than their non-invasive relatives?" @default.
- W78561671 hasPublicationYear "2008" @default.
- W78561671 type Work @default.
- W78561671 sameAs 78561671 @default.
- W78561671 citedByCount "0" @default.
- W78561671 crossrefType "journal-article" @default.
- W78561671 hasAuthorship W78561671A5026469312 @default.
- W78561671 hasAuthorship W78561671A5055852015 @default.
- W78561671 hasAuthorship W78561671A5062288806 @default.
- W78561671 hasConcept C18903297 @default.
- W78561671 hasConcept C81461190 @default.
- W78561671 hasConcept C86803240 @default.
- W78561671 hasConceptScore W78561671C18903297 @default.
- W78561671 hasConceptScore W78561671C81461190 @default.
- W78561671 hasConceptScore W78561671C86803240 @default.
- W78561671 hasLocation W785616711 @default.
- W78561671 hasOpenAccess W78561671 @default.
- W78561671 hasPrimaryLocation W785616711 @default.
- W78561671 isParatext "false" @default.
- W78561671 isRetracted "false" @default.
- W78561671 magId "78561671" @default.
- W78561671 workType "article" @default.