Abstract
The potential of different parts of banana bacterial wilt infected banana plants to transmit the wilt bacterium, Xanthomonas campestris pv. Musacearum (Xcm) was investigated. Banana parts (fresh leaves, dry leaves, fresh pseudostem sheath, fruit peelings and corms) picked from diseased plants were used to inoculate the test plantlets. Prior to inoculation, banana wilt bacterium was isolated from these parts, quantified and confirmed through pathogenicity tests on healthy banana potted plantlets. Inoculation with banana parts was then done by placing infected parts into contact with wounded healthy banana plantlets. Fresh plant parts contained more bacterial cells than dry leaves. This isolated bacteria induced disease symptoms often associated with Xanthomonas campestris pv. musacearum infection. Inoculation results showed that some pans (mainly the fresh banana parts) were able to cause infection to healthy potted banana plantlets only after wounding the test plant roots. Even then, the disease incidence was low (5-20 percent). Therefore, practices and activities that involve movement of fresh banana parts some of which could be from infected banana plants could be discouraged as it has been shown that these parts can carry viable and pathogenic bacteria. (Author's abstract).[Le potentiel des differentes parties du bananier a transmettre le virus de fletrissement bacterien etait etudie. Les parties (feuilles fraiches, feuilles seches, les pseudostems, les fruits epluchees et les cormes) malades etaient utilisees pour inoculer les plantules testees. Avant l'inoculation, le virus de fletrissement bacterien du bananier etait isole de ces parties, puis quantifie et confirme par les tests pathogeniques sur des plantules saines. L'inoculation etait realisee en placant les parties infectees au contact d'une egratignure realisee sur une partie de la plantule du bananier sain. Les parties fraiches des plantes avaient plus des cellules bacteriennes que les feuilles seches. Les bacteries isolees ont induit les symptomes de la maladie souvent associes a l'infection par Xanthomonas campestris pv. musacearum. Les resultats de l'inoculation ont montre que quelques parties (generalement les parties fraiches du bananier) etaient capables de causer l'infection aux plantules saines seulement apres une egratignure a la racine. Toutefois l'incidence de la maladie etait faible (5-20 pourcent). Par consequent, les pratiques et les activites qui impliquent le mouvement des parties fraiches du bananier parmi lesquelles se trouveraient des plantes infectees doivent etre evitees perce qu'elles transportent des bacteries viables. (Resume d'auteur).]
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Claims 5
Claim · model-written summary
Fresh infected banana parts carried more bacterial cells than dry leaves.
- Taxon
- bananat0
- Organ / stage
- Fresh plant partse0
- Outcome
- bacterial cellse0
- Direction
- moree0
- Comparator
- dry leavese0
Not reportedInteractorInteractor role
Verbatim
e0“Fresh plant parts contained more bacterial cells than dry leaves.”
t0“banana”
Claim · model-written summary
Bacteria isolated from banana parts induced characteristic disease symptoms.
- Taxon
- bananat0
- Treatment
- This isolated bacteriae0
- Interactor
- Xanthomonas campestris pv. musacearumXanthomonas vasicola pv. musacearume0pathogen
- Outcome
- disease symptomse0
Not reportedComparatorDirection
Verbatim
e0“This isolated bacteria induced disease symptoms often associated with Xanthomonas campestris pv. musacearum infection.”
t0“banana”
Claim · model-written summary
Mainly fresh infected banana parts infected healthy plantlets only after root wounding.
- Taxon
- bananae0
- Treatment
- the fresh banana partse0
- Outcome
- infection to healthy potted banana plantletse0
- Qualifier
- only after wounding the test plant rootse0
Not reportedInteractorInteractor roleComparatorDirection
Verbatim
e0“Inoculation results showed that some pans (mainly the fresh banana parts) were able to cause infection to healthy potted banana plantlets only after wounding the test plant roots.”
Claim · model-written summary
Disease incidence following inoculation was low at 5–20 percent.
Not reportedInteractorInteractor role
Verbatim
e0“Even then, the disease incidence was low (5-20 percent).”
t0“banana”
Claim · model-written summary
The authors discourage movement of fresh banana parts because they can carry viable pathogenic bacteria.
- Taxon
- bananae0
- Outcome
- movement of fresh banana parts some of which could be from infected banana plants could be discouragede0
Not reportedInteractorInteractor role
Verbatim
e0“practices and activities that involve movement of fresh banana parts some of which could be from infected banana plants could be discouraged as it has been shown that these parts can carry viable and pathogenic bacteria.”
The same questions in other papers
inoculation · Xanthomonas vasicola pv. musacearum · MusaResults agree
4 papers in the same direction as this paper
- negative
- negative
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See all 5 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.