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Belowground advantages in construction cost facilitate a cryptic plant invasion.

Caplan JS, Wheaton CN, Mozdzer TJ - AoB Plants (2014)

Bottom Line: We determined construction costs for leaves, stems, rhizomes and roots, as well as for whole plants.Our results suggest that introduced Phragmites has had an advantageous tissue investment strategy under historic CO2 and N levels, which has facilitated key rhizome processes, such as clonal spread.We recommend that construction costs for multiple organ types be included in future studies of plant carbon economy, especially those investigating global change.

View Article: PubMed Central - PubMed

Affiliation: Department of Biology, Bryn Mawr College, Bryn Mawr, PA, USA Smithsonian Environmental Research Center, Edgewater, MD, USA.

No MeSH data available.


Related in: MedlinePlus

Organ-specific construction costs (CCs) for Phragmites lineages native to the North American North Atlantic coast (‘Native’) and introduced from Eurasia (‘Introduced’). Bar heights represent mean (±SE) CC for all plants grown in a combination of CO2 and N fertilization treatments. Within each panel, lowercase letters above bars differ when Tukey's HSD tests for the best-fitting model identified statistically significant differences in means. Units are grams of glucose required per gram of biomass produced.
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PLU020F1: Organ-specific construction costs (CCs) for Phragmites lineages native to the North American North Atlantic coast (‘Native’) and introduced from Eurasia (‘Introduced’). Bar heights represent mean (±SE) CC for all plants grown in a combination of CO2 and N fertilization treatments. Within each panel, lowercase letters above bars differ when Tukey's HSD tests for the best-fitting model identified statistically significant differences in means. Units are grams of glucose required per gram of biomass produced.

Mentions: The influence of lineage and environmental manipulations on CCs was strongly organ specific. Aboveground, leaf CCs were influenced by both N and CO2 treatment, but the magnitude of these effects depended on lineage (Fig. 1A, Table 1). Specifically, N fertilization induced an increase in leaf CC for native Phragmites, but this effect was independent of the CO2 level. In contrast, introduced Phragmites only increased its leaf CC with fertilization if CO2 was elevated as well. When averaging across environmental treatments, leaf CCs were similar for the two lineages. Unlike leaves, the CC of stems was unaffected by N fertilization, but did differ by lineage and CO2 status (Fig. 1B, Table 1). Specifically, under ambient CO2 conditions, introduced Phragmites generated stems that had 5.8 % lower CCs than did native Phragmites.Table 1.


Belowground advantages in construction cost facilitate a cryptic plant invasion.

Caplan JS, Wheaton CN, Mozdzer TJ - AoB Plants (2014)

Organ-specific construction costs (CCs) for Phragmites lineages native to the North American North Atlantic coast (‘Native’) and introduced from Eurasia (‘Introduced’). Bar heights represent mean (±SE) CC for all plants grown in a combination of CO2 and N fertilization treatments. Within each panel, lowercase letters above bars differ when Tukey's HSD tests for the best-fitting model identified statistically significant differences in means. Units are grams of glucose required per gram of biomass produced.
© Copyright Policy - creative-commons
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4060782&req=5

PLU020F1: Organ-specific construction costs (CCs) for Phragmites lineages native to the North American North Atlantic coast (‘Native’) and introduced from Eurasia (‘Introduced’). Bar heights represent mean (±SE) CC for all plants grown in a combination of CO2 and N fertilization treatments. Within each panel, lowercase letters above bars differ when Tukey's HSD tests for the best-fitting model identified statistically significant differences in means. Units are grams of glucose required per gram of biomass produced.
Mentions: The influence of lineage and environmental manipulations on CCs was strongly organ specific. Aboveground, leaf CCs were influenced by both N and CO2 treatment, but the magnitude of these effects depended on lineage (Fig. 1A, Table 1). Specifically, N fertilization induced an increase in leaf CC for native Phragmites, but this effect was independent of the CO2 level. In contrast, introduced Phragmites only increased its leaf CC with fertilization if CO2 was elevated as well. When averaging across environmental treatments, leaf CCs were similar for the two lineages. Unlike leaves, the CC of stems was unaffected by N fertilization, but did differ by lineage and CO2 status (Fig. 1B, Table 1). Specifically, under ambient CO2 conditions, introduced Phragmites generated stems that had 5.8 % lower CCs than did native Phragmites.Table 1.

Bottom Line: We determined construction costs for leaves, stems, rhizomes and roots, as well as for whole plants.Our results suggest that introduced Phragmites has had an advantageous tissue investment strategy under historic CO2 and N levels, which has facilitated key rhizome processes, such as clonal spread.We recommend that construction costs for multiple organ types be included in future studies of plant carbon economy, especially those investigating global change.

View Article: PubMed Central - PubMed

Affiliation: Department of Biology, Bryn Mawr College, Bryn Mawr, PA, USA Smithsonian Environmental Research Center, Edgewater, MD, USA.

No MeSH data available.


Related in: MedlinePlus