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6 results for “Asclepias speciosa”
Data from: Trait responses to AM fungi are stronger and more consistent than fixed differences among populations of Asclepias speciosa
Premise of the study: Arbuscular mycorrhizal (AM) fungi can promote plant growth and reproduction, but other plant physiological traits or traits that provide defense against herbivores can also be affected by AM fungi. However, whether responses of different traits to AM fungi are correlated, and whether these relationships vary among plants from different populations is unresolved. Methods: We assessed whether different populations of the perennial forb, Asclepias speciosa, grown from seed collected from different environmental conditions across its distributional range respond differently to AM fungi, and if the responses of six growth and defense traits are correlated. Key Results: Although there was strong genetic differentiation in mean trait values among populations, AM fungi consistently increased expression of most growth and defense traits across all populations. Responses of biomass and root:shoot ratio to AM fungi were positively correlated, suggesting that plants that are more responsive to AM fungi allocated more biomass belowground. Responses of biomass and trichome density to AM fungi were negatively correlated, indicating a trade-off in responsiveness between a growth and defensive trait. Conclusions: Our results suggest that while there is substantial population differentiation in many traits of A. speciosa, populations respond similarly to AM fungi, and both positive and negative correlations among trait responses occur.
Physiological and morphological growth and hydraulic measures in Asclepias syriaca and A. speciosa under drought
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Data from: Trait responses to AM fungi are stronger and more consistent than fixed differences among populations of Asclepias speciosa
Open the record for dataset details and reuse information.
Figure 2 from: Gudžinskas Z, Petrulaitis L, Žalneravičius E (2019) Asclepias speciosa (Apocynaceae, Asclepiadoideae): a rare or unrecognized alien species in Europe? PhytoKeys 121: 29-41. https://doi.org/10.3897/phytokeys.121.33573
Figure 2 Inflorescences and individual flowers of Asclepiasspeciosa (a, c) and Asclepiassyriaca (b, d).
Figure 1 from: Gudžinskas Z, Petrulaitis L, Žalneravičius E (2019) Asclepias speciosa (Apocynaceae, Asclepiadoideae): a rare or unrecognized alien species in Europe? PhytoKeys 121: 29-41. https://doi.org/10.3897/phytokeys.121.33573
Figure 1 Asclepiasspeciosa in a field of winter wheat (a) and at the edge of a woodland (b).
Figure 3 from: Gudžinskas Z, Petrulaitis L, Žalneravičius E (2019) Asclepias speciosa (Apocynaceae, Asclepiadoideae): a rare or unrecognized alien species in Europe? PhytoKeys 121: 29-41. https://doi.org/10.3897/phytokeys.121.33573
Figure 3 Middle cauline leaves of Asclepiasspeciosa (a) and Asclepiassyriaca (b).
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