Repeated drying and rewetting cycles accelerate bacterial growth recovery after rewetting
(2022) In Biology and Fertility of Soils 58(4). p.365-374- Abstract
Two patterns of bacterial growth response upon drying and rewetting (DRW) of soils have previously been identified. Bacterial growth can either start increasing immediately after rewetting in a linear fashion (“type 1” response) or start increasing exponentially after a lag period (“type 2” response). The effect of repeated DRW cycles was studied in three soils with different response patterns after a single DRW cycle (“type 1”, “type 2” with a short lag period and “type 2” with a long lag period). The soils were exposed to seven DRW cycles, and respiration and bacterial growth were monitored after 1, 2, 3, 5, and 7 cycles. Exposure to repeated DRW shifted the bacterial growth response from a “type 2” to a “type 1” pattern, resulting in... (More)
Two patterns of bacterial growth response upon drying and rewetting (DRW) of soils have previously been identified. Bacterial growth can either start increasing immediately after rewetting in a linear fashion (“type 1” response) or start increasing exponentially after a lag period (“type 2” response). The effect of repeated DRW cycles was studied in three soils with different response patterns after a single DRW cycle (“type 1”, “type 2” with a short lag period and “type 2” with a long lag period). The soils were exposed to seven DRW cycles, and respiration and bacterial growth were monitored after 1, 2, 3, 5, and 7 cycles. Exposure to repeated DRW shifted the bacterial growth response from a “type 2” to a “type 1” pattern, resulting in an accelerated growth recovery to a pre-disturbance growth rate. Bacterial growth in soils that initially had a “type 1” response also tended to recover faster after each subsequent DRW cycle. The respiration patterns after DRW also indicated the same transition from a “type 2” to a “type 1” pattern. Our results show that exposure to repeated DRW cycles will shape the bacterial response to future DRW cycles, which might be mediated by a shift in species composition, a physiological adjustment, evolutionary changes, or a combination of the three.
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- author
- Leizeaga, Ainara LU ; Meisner, Annelein LU ; Rousk, Johannes LU and Bååth, Erland LU
- organization
- publishing date
- 2022-05
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Bacterial growth, Birch effect, Drying-rewetting cycles, Moisture, Respiration, Soil microorganisms
- in
- Biology and Fertility of Soils
- volume
- 58
- issue
- 4
- pages
- 365 - 374
- publisher
- Springer
- external identifiers
-
- scopus:85124257958
- ISSN
- 0178-2762
- DOI
- 10.1007/s00374-022-01623-2
- language
- English
- LU publication?
- yes
- additional info
- Funding Information: Open access funding provided by Lund University. This work was supported by grants from the Royal Physiographic Society of Lund, the Swedish Research Council Formas [grant no 2018–01315], the Knut and Alice Wallenberg Foundation [grant no KAW 2017.0171], an international career grant from the Swedish Research Council [VR, Grant No. 330–2014-6430] and Marie Sklodowska Curie Actions [Cofund Project INCA600398]. Publisher Copyright: © 2022, The Author(s).
- id
- 310b5302-f9c8-4a58-9a92-a2172b78c4ba
- date added to LUP
- 2022-04-22 08:48:38
- date last changed
- 2024-05-09 14:14:55
@article{310b5302-f9c8-4a58-9a92-a2172b78c4ba, abstract = {{<p>Two patterns of bacterial growth response upon drying and rewetting (DRW) of soils have previously been identified. Bacterial growth can either start increasing immediately after rewetting in a linear fashion (“type 1” response) or start increasing exponentially after a lag period (“type 2” response). The effect of repeated DRW cycles was studied in three soils with different response patterns after a single DRW cycle (“type 1”, “type 2” with a short lag period and “type 2” with a long lag period). The soils were exposed to seven DRW cycles, and respiration and bacterial growth were monitored after 1, 2, 3, 5, and 7 cycles. Exposure to repeated DRW shifted the bacterial growth response from a “type 2” to a “type 1” pattern, resulting in an accelerated growth recovery to a pre-disturbance growth rate. Bacterial growth in soils that initially had a “type 1” response also tended to recover faster after each subsequent DRW cycle. The respiration patterns after DRW also indicated the same transition from a “type 2” to a “type 1” pattern. Our results show that exposure to repeated DRW cycles will shape the bacterial response to future DRW cycles, which might be mediated by a shift in species composition, a physiological adjustment, evolutionary changes, or a combination of the three.</p>}}, author = {{Leizeaga, Ainara and Meisner, Annelein and Rousk, Johannes and Bååth, Erland}}, issn = {{0178-2762}}, keywords = {{Bacterial growth; Birch effect; Drying-rewetting cycles; Moisture; Respiration; Soil microorganisms}}, language = {{eng}}, number = {{4}}, pages = {{365--374}}, publisher = {{Springer}}, series = {{Biology and Fertility of Soils}}, title = {{Repeated drying and rewetting cycles accelerate bacterial growth recovery after rewetting}}, url = {{http://dx.doi.org/10.1007/s00374-022-01623-2}}, doi = {{10.1007/s00374-022-01623-2}}, volume = {{58}}, year = {{2022}}, }