Abstract
Post-harvest colonization of sugar beets accompanied by rot development is a serious problem due to sugar losses and negative impact on processing quality. Studies on the microbial community associated with rot development and factors shaping their structure are missing. Therefore, high-throughput sequencing was applied to describe the influence of environment, plant genotype and storage temperature (8°C and 20°C) on three different communities in stored sugar beets, namely fungi (internal transcribed spacers 1 and 2), Fusarium spp. (elongation factor-1α gene fragment) and oomycetes (internal transcribed spacers 1). The composition of the fungal community changed during storage mostly influenced by the storage temperature followed by a weak environmental effect. Botrytis cinerea was the prevalent species at 8°C whereas members of the fungal genera Fusarium and Penicillium became dominant at 20°C. This shift was independent of the plant genotype. Species richness within the genus Fusarium also increased during storage at both temperatures whereas the oomycetes community did not change. Moreover, oomycetes species were absent after storage at 20°C. The results of the present study clearly show that rot development during sugar beet storage is associated with pathogens well known as causal agents of post-harvest diseases in many other crops.
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Claims 11
Claim · model-written summary
Fungal community composition changed during storage.
- Taxon
- sugar beets
Beta vulgaris subsp. vulgarist0 - Outcome
- composition of the fungal communitye0
- Direction
- changede0
- Qualifier
- during storagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The composition of the fungal community changed during storage”
t0“stored sugar beets”
Claim · model-written summary
Storage temperature was the strongest influence on fungal community composition.
- Taxon
- sugar beetsBeta vulgaris subsp. vulgarist0
- Outcome
- fungal communitye1
- Setting
- storage temperaturee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mostly influenced by the storage temperature followed by a weak environmental effect.”
t0“stored sugar beets”
e1“The composition of the fungal community changed during storage”
Claim · model-written summary
Environmental effects on fungal community composition were weak.
- Taxon
- sugar beetsBeta vulgaris subsp. vulgarist0
- Outcome
- environmental effecte0
Not reportedSettingDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“followed by a weak environmental effect.”
t0“stored sugar beets”
Claim · model-written summary
Botrytis cinerea prevailed at 8°C.
- Taxon
- sugar beetsBeta vulgaris subsp. vulgarist0
- Interactor
- Botrytis cinerea
Botrytis cinereae0pathogen - Outcome
- prevalent speciese0
- Setting
- 8°Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Botrytis cinerea was the prevalent species at 8°C”
t0“stored sugar beets”
Claim · model-written summary
Fusarium became dominant at 20°C.
- Taxon
- sugar beetsBeta vulgaris subsp. vulgarist0
- Outcome
- became dominante0
- Setting
- 20°Ce0
FusariumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“members of the fungal genera Fusarium and Penicillium became dominant at 20°C.”
t0“stored sugar beets”
Claim · model-written summary
Penicillium became dominant at 20°C.
- Taxon
- sugar beetsBeta vulgaris subsp. vulgarist0
- Interactor
- Penicillium
Penicilliume0pathogen - Outcome
- became dominante0
- Setting
- 20°Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“members of the fungal genera Fusarium and Penicillium became dominant at 20°C.”
t0“stored sugar beets”
Claim · model-written summary
The fungal community shift was independent of plant genotype.
- Taxon
- sugar beetsBeta vulgaris subsp. vulgarist0
- Material
- plant genotypee0
- Outcome
- shifte0
- Direction
- independente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This shift was independent of the plant genotype.”
t0“stored sugar beets”
Claim · model-written summary
Fusarium species richness increased during storage at both temperatures.
- Taxon
- sugar beetsBeta vulgaris subsp. vulgarist0
- Outcome
- Species richness within the genus Fusariume0
- Direction
- increasede0
- Qualifier
- both temperaturese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Species richness within the genus Fusarium also increased during storage at both temperatures”
t0“stored sugar beets”
Claim · model-written summary
Oomycete community composition did not change during storage.
- Taxon
- sugar beetsBeta vulgaris subsp. vulgarist0
- Outcome
- oomycetes communitye0
- Direction
- did not changee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the oomycetes community did not change.”
t0“stored sugar beets”
Claim · model-written summary
Oomycete species were absent after storage at 20°C.
- Taxon
- sugar beetsBeta vulgaris subsp. vulgarist0
- Outcome
- oomycetes species were absente0
- Setting
- 20°Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“oomycetes species were absent after storage at 20°C.”
t0“stored sugar beets”
Claim · model-written summary
The authors link rot development during beet storage with established postharvest pathogens.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Interactor
- pathogense0pathogen
- Outcome
- rot developmente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rot development during sugar beet storage is associated with pathogens well known as causal agents of post-harvest diseases in many other crops.”