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24 results on '"Agler, Matthew T."'

13. Root microbiota dynamics of perennial Arabis alpina are dependent on soil residence time but independent of flowering time

Author

Dombrowski, Nina, Schlaeppi, Klaus, Agler, Matthew T., Hacquard, Stephane, Kemen, Eric, Garrido-Oter, Ruben, Wunder, Joerg, Coupland, George, Schulze-Lefert, Paul, Dombrowski, Nina, Schlaeppi, Klaus, Agler, Matthew T., Hacquard, Stephane, Kemen, Eric, Garrido-Oter, Ruben, Wunder, Joerg, Coupland, George, and Schulze-Lefert, Paul

Abstract

Recent field and laboratory experiments with perennial Boechera stricta and annual Arabidopsis thaliana suggest that the root microbiota influences flowering time. Here we examined in long-term time-course experiments the bacterial root microbiota of the arctic-alpine perennial Arabis alpina in natural and controlled environments by 16S rRNA gene profiling. We identified soil type and residence time of plants in soil as major determinants explaining up to 15% of root microbiota variation, whereas environmental conditions and host genotype explain maximally 11% of variation. When grown in the same soil, the root microbiota composition of perennial A. alpina is largely similar to those of its annual relatives A. thaliana and Cardamine hirsuta. Non-flowering wild-type A. alpina and flowering pep1 mutant plants assemble an essentially indistinguishable root microbiota, thereby uncoupling flowering time from plant residence time-dependent microbiota changes. This reveals the robustness of the root microbiota against the onset and perpetual flowering of A. alpina. Together with previous studies, this implies a model in which parts of the root microbiota modulate flowering time, whereas, after microbiota acquisition during vegetative growth, the established root-associated bacterial assemblage is structurally robust to perturbations caused by flowering and drastic changes in plant stature.

Published
2017

22. Biotests for hazard assessment of biofuel fermentation

Author

Heger, Sebastian, primary, Bluhm, Kerstin, additional, Agler, Matthew T., additional, Maletz, Sibylle, additional, Schäffer, Andreas, additional, Seiler, Thomas-Benjamin, additional, Angenent, Largus T., additional, and Hollert, Henner, additional

Published
2012
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24. Root microbiota dynamics of perennial Arabis alpinaare dependent on soil residence time but independent of flowering time

Author

Dombrowski, Nina, Schlaeppi, Klaus, Agler, Matthew T, Hacquard, Stéphane, Kemen, Eric, Garrido-Oter, Ruben, Wunder, Jörg, Coupland, George, and Schulze-Lefert, Paul

Abstract

Recent field and laboratory experiments with perennial Boechera strictaand annual Arabidopsis thalianasuggest that the root microbiota influences flowering time. Here we examined in long-term time-course experiments the bacterial root microbiota of the arctic-alpine perennial Arabis alpinain natural and controlled environments by 16S rRNA gene profiling. We identified soil type and residence time of plants in soil as major determinants explaining up to 15% of root microbiota variation, whereas environmental conditions and host genotype explain maximally 11% of variation. When grown in the same soil, the root microbiota composition of perennial A. alpinais largely similar to those of its annual relatives A. thalianaand Cardamine hirsuta. Non-flowering wild-type A. alpinaand flowering pep1mutant plants assemble an essentially indistinguishable root microbiota, thereby uncoupling flowering time from plant residence time-dependent microbiota changes. This reveals the robustness of the root microbiota against the onset and perpetual flowering of A. alpina. Together with previous studies, this implies a model in which parts of the root microbiota modulate flowering time, whereas, after microbiota acquisition during vegetative growth, the established root-associated bacterial assemblage is structurally robust to perturbations caused by flowering and drastic changes in plant stature.

Published
2017
Full Text
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