Paper · 2020 · IOP Conference Series Materials Science and Engineering

Endophytic Bacteria isolated from the leaf of Langusei (Ficus minahassae Tesym. & De Vr.) and their antibacterial activities

T E Tallei; Y T Linelejan; S D Umboh; et al.

6
claims
14
verbatim quotes
20
citations
2
research areas
✓
Open access · cc-by

Abstract

Abstract Endophytic bacteria colonizing the internal tissues of plants are being studied for its potential beneficial properties including antibacterial activity. The aims of this study were to identify the endophytic bacteria residing in the leaf of Ficus minahassae , a native plant of North Sulawesi, as well as their antibacterial activities against laboratory-adapted reference bacterial strains, Staphylococcus aureus , and Escherichia coli. The isolate identification was conducted using the 16S rRNA gene marker and the antibacterial activity test was done using a well diffusion method. A yellow-pigmented (designated as YL1) and a beige-pigmented (designated as YL2) bacteria were isolated from the internal tissue of langusei. Using the BLAST search, the isolate YL1 had a 100% identity with Brachybacterium muris , while YL2 has 99% identity with Pseudacidovorax intermedius. Ez-Taxon database confirmed that YL1 was B. muris with 99.81% similarity, while YL2 was P. intermedius with 99.80% similarity. Isolate YL2 was able to inhibit the growth of S. aureus but not E. coli. Isolate YL1 did not inhibit both reference bacteria. This study represents the first investigation of endophytic bacteria isolated from langusei leaf and their antibacterial activity.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

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Claims 6

Observationobservedoriginal resultmeasured

Claim · model-written summary

A yellow-pigmented isolate YL1 and a beige-pigmented isolate YL2 were isolated from the internal tissue of langusei (Ficus minahassae).

Taxon
Ficus minahassaeFicus minahassaee1
Organ / stage
internal tissuee0
Interactor
bacteriaBacteriae0symbiont
Outcome
yellow-pigmented (designated as YL1) and a beige-pigmented (designated as YL2) bacteria were isolatede0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Ficus minahassae
Ficus minahassae · TaxonPauline Carmel Joy Eje · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“A yellow-pigmented (designated as YL1) and a beige-pigmented (designated as YL2) bacteria were isolated from the internal tissue of langusei”

✓ located verbatim in the source · abstract, characters 596–736 · show in text ↑
e1

“residing in the leaf of Ficus minahassae”

✓ located verbatim in the source · abstract, characters 227–267 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Isolate YL1 had 100% BLAST identity with Brachybacterium muris, confirmed at 99.81% similarity by the Ez-Taxon database.

Taxon
Ficus minahassaeFicus minahassaee1
Interactor
Brachybacterium murisBrachybacterium murise0symbiont
Outcome
identitye0
Value
100% identitye0
Qualifier
99.81% similaritye2

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Ficus minahassae
Ficus minahassae · TaxonPauline Carmel Joy Eje · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the isolate YL1 had a 100% identity with Brachybacterium muris”

✓ located verbatim in the source · abstract, characters 762–824 · show in text ↑
e2

“YL1 was B. muris with 99.81% similarity”

✓ located verbatim in the source · abstract, characters 921–960 · show in text ↑
e1

“residing in the leaf of Ficus minahassae”

✓ located verbatim in the source · abstract, characters 227–267 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Isolate YL2 had 99% identity with Pseudacidovorax intermedius, confirmed at 99.80% similarity by the Ez-Taxon database.

Taxon
Ficus minahassaeFicus minahassaee1
Interactor
Pseudacidovorax intermediusPseudacidovorax intermediuse0symbiont
Outcome
identitye0
Value
99% identitye0
Qualifier
99.80% similaritye2

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Ficus minahassae
Ficus minahassae · TaxonPauline Carmel Joy Eje · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“YL2 has 99% identity with Pseudacidovorax intermedius”

✓ located verbatim in the source · abstract, characters 833–886 · show in text ↑
e2

“YL2 was P. intermedius with 99.80% similarity”

✓ located verbatim in the source · abstract, characters 968–1013 · show in text ↑
e1

“residing in the leaf of Ficus minahassae”

✓ located verbatim in the source · abstract, characters 227–267 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Isolate YL2 was able to inhibit the growth of S. aureus.

Taxon
Ficus minahassaeFicus minahassaee1
Interactor
S. aureusStaphylococcus aureuse0other
Outcome
inhibit the growthe0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Ficus minahassae
Ficus minahassae · TaxonPauline Carmel Joy Eje · CC BY 4.0 · Wikimedia Commons ↗
Staphylococcus aureus
Staphylococcus aureus · InteractorContent Providers(s): CDC/ Matthew J. Arduino, DRPH Photo Credit: Janice Haney Carr · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Isolate YL2 was able to inhibit the growth of S. aureus”

✓ located verbatim in the source · abstract, characters 1015–1070 · show in text ↑
e1

“residing in the leaf of Ficus minahassae”

✓ located verbatim in the source · abstract, characters 227–267 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Isolate YL2 did not inhibit the growth of E. coli.

Taxon
Ficus minahassaeFicus minahassaee1
Interactor
E. coliEscherichia colie0other
Outcome
inhibit the growthe0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Ficus minahassae
Ficus minahassae · TaxonPauline Carmel Joy Eje · CC BY 4.0 · Wikimedia Commons ↗
Escherichia coli
Escherichia coli · InteractorNIAID · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Isolate YL2 was able to inhibit the growth of S. aureus but not E. coli”

✓ located verbatim in the source · abstract, characters 1015–1086 · show in text ↑
e1

“residing in the leaf of Ficus minahassae”

✓ located verbatim in the source · abstract, characters 227–267 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Isolate YL1 did not inhibit either reference bacterium.

Taxon
Ficus minahassaeFicus minahassaee1
Interactor
reference bacteriae0other
Outcome
did not inhibit both reference bacteriae0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Ficus minahassae
Ficus minahassae · TaxonPauline Carmel Joy Eje · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Isolate YL1 did not inhibit both reference bacteria”

✓ located verbatim in the source · abstract, characters 1088–1139 · show in text ↑
e1

“residing in the leaf of Ficus minahassae”

✓ located verbatim in the source · abstract, characters 227–267 · show in text ↑