Abstract
Two experimental replicates were conducted to test whether strains of Beauveria brongniartii (BIPESCO2 and 2843) and Metarhizium brunneum (BIPESCO5) can endophytically colonise Vicia faba plants and improve their growth by comparing them with an endophytic strain of B. bassiana (NATURALIS®). The plants were inoculated through foliar spray and the effect of inoculation on plant height, leaf pair number, fresh root and shoot weights was measured at 7 and 14 days post inoculation (dpi). Endophytic colonisation of different plant parts with the tested fungal strains were confirmed 7 and 14 dpi through re-isolation of inoculated fungi onto selective media and subsequent Simple Sequence Repeat (SSR) marker-based genetic identification. All tested strains were able to endophytically colonise leaves, stems, and even roots of inoculated plants 7 and 14 dpi, but per cent colonisation varied significantly among strains and plant parts within each sampling date. Foliar inoculation of plants with the tested strains increased plant height, leaf pair number, fresh shoot and root weights; however the increase was not always consistent across sampling dates in both experimental replicates. This study provides the first evidence for the endophytic colonisation of plants with two strains of B. brongniartii, an important biocontrol agent of Melolontha melolontha and other scarab beetles in several European countries, and thus extends previous reports on the ability of entomopathogenic fungi to act as endophytes. It also presents possible explanations for the lack of consistency in the plant growth promotion obtained by the foliar inoculation of entomopathogenic fungi.
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Claims 4
Claim · model-written summary
Tested fungal strains colonized leaves, stems and roots at 7 and 14 days.
- Taxon
- Vicia faba
Vicia fabae1 - Organ / stage
- leaves, stems, and even rootse0
- Outcome
- endophytically colonise leaves, stems, and even rootse0
- Qualifier
- 7 and 14 dpie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All tested strains were able to endophytically colonise leaves, stems, and even roots of inoculated plants 7 and 14 dpi”
e1“Beauveria brongniartii (BIPESCO2 and 2843) and Metarhizium brunneum (BIPESCO5) can endophytically colonise Vicia faba plants”
Claim · model-written summary
Colonization percentages differed significantly by strain and plant part within sampling date.
- Taxon
- Vicia fabaVicia fabae1
- Outcome
- per cent colonisatione0
- Direction
- variede0
- Qualifier
- among strains and plant parts within each sampling datee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“per cent colonisation varied significantly among strains and plant parts within each sampling date”
e1“Vicia faba plants”
Claim · model-written summary
Foliar inoculation increased plant height and leaf pair number inconsistently across sampling dates.
- Taxon
- Vicia fabaVicia fabae1
- Treatment
- Foliar inoculation of plants with the tested strainse0
- Outcome
- plant height, leaf pair numbere0
- Direction
- increasede0
- Qualifier
- not always consistent across sampling dates in both experimental replicatese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar inoculation of plants with the tested strains increased plant height, leaf pair number, fresh shoot and root weights; however the increase was not always consistent across sampling dates in both experimental replicates”
e1“Vicia faba plants”
Claim · model-written summary
Foliar inoculation increased fresh shoot and root weights inconsistently across sampling dates.
- Taxon
- Vicia fabaVicia fabae1
- Treatment
- Foliar inoculation of plants with the tested strainse0
- Outcome
- fresh shoot and root weightse0
- Direction
- increasede0
- Qualifier
- not always consistent across sampling dates in both experimental replicatese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar inoculation of plants with the tested strains increased plant height, leaf pair number, fresh shoot and root weights; however the increase was not always consistent across sampling dates in both experimental replicates”
e1“Vicia faba plants”
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See all 69 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.