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Screening of liquid media and fermentation of an endophytic Beauveria bassiana strain in a bioreactor

Overview of attention for article published in AMB Express, May 2014
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83 Mendeley
Title
Screening of liquid media and fermentation of an endophytic Beauveria bassiana strain in a bioreactor
Published in
AMB Express, May 2014
DOI 10.1186/s13568-014-0047-6
Pubmed ID
Authors

Rieke Lohse, Desiree Jakobs-Schönwandt, Anant V Patel

Abstract

A novel approach for biological control of insect pests could be the use of the endophytic entomopathogenic Beauveria bassiana isolate ATP-02. For the utilization of the endophyte as a commercial biocontrol agent, the fungus has to be mass-produced. B. bassiana was raised in shake flask cultures to produce high concentrations of total spores (TS), which include blastospores (BS) and submerged conidiospores (SCS). The highest concentration of 1.33×10(9) TS/mL and the highest yield of 5.32×10(10) TS/g sucrose was obtained in the TKI broth with 5% sugar beet molasses which consists of 50% sucrose as a carbon source. In spite of the lower sugar concentration (2.5%) the amount of TS could be increased up to 11-times in contrast to the cultivation with 5% sucrose. The scale-up to a 2 L stirred tank reactor was carried out at 25°C, 200-600 rpm and 1 vvm at pH 5.5. A TS yield of 5.2×10(10) TS/g sucrose corresponding to a SCS yield of 0.2×10(10) SCS/g sucrose was obtained after 216 h. With regards to the culture medium the cost of 10(12) TS amounts to 0.24 €. Plutella xylostella larvae, which were fed with oilseed rape leaves treated with spores from fermentation resulted in 77 ± 5% mortality. Moreover, spores from submerged cultivation were able to colonize oilseed rape leaves via leaf application. This is the first report of fermentation of an endophytic B. bassiana strain in a low-cost culture medium to very high yields of TS.

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Geographical breakdown

Country Count As %
Malaysia 1 1%
Slovakia 1 1%
Unknown 81 98%

Demographic breakdown

Readers by professional status Count As %
Researcher 21 25%
Student > Master 12 14%
Student > Bachelor 10 12%
Student > Ph. D. Student 8 10%
Other 5 6%
Other 14 17%
Unknown 13 16%
Readers by discipline Count As %
Agricultural and Biological Sciences 40 48%
Biochemistry, Genetics and Molecular Biology 13 16%
Environmental Science 4 5%
Chemistry 3 4%
Nursing and Health Professions 2 2%
Other 4 5%
Unknown 17 20%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 21 June 2014.
All research outputs
#18,373,576
of 22,757,090 outputs
Outputs from AMB Express
#796
of 1,231 outputs
Outputs of similar age
#163,010
of 226,521 outputs
Outputs of similar age from AMB Express
#11
of 21 outputs
Altmetric has tracked 22,757,090 research outputs across all sources so far. This one is in the 11th percentile – i.e., 11% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,231 research outputs from this source. They receive a mean Attention Score of 2.8. This one is in the 21st percentile – i.e., 21% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 226,521 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 15th percentile – i.e., 15% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 21 others from the same source and published within six weeks on either side of this one. This one is in the 33rd percentile – i.e., 33% of its contemporaries scored the same or lower than it.