Abstract
The purpose of this study was to understand water stress development in pine seedlings inoculated with Bursaphelenchus xylophilus. Leaf water potentials of four years old Pinus densiflora seedlings inoculated with the nematode were measured with a plant moisture system at predawn and midday. The midday leaf water potentials on the 35th day after the inoculation were -1.04 MPa in the infected seedlings, while -0.94 MPa in the non-infected seedlings. The predawn water potentials on the 56th day were -0.71 MPa in the infected, while -0.26 MPa in the non-infected. At this time the leaves of the infected seedlings became yellow and resin did not exude on the cut basal stem. Density of the nematode was maximum on the 28th day, but dropped sharply on the 68th day. The phloem and pith tissues became brown and the resin exudation reduced in the infected seedlings. In conclusion, pinewood nematode inoculation developed water stress in pine seedlings in a month.
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Claims 7
Claim · model-written summary
At day 35, midday leaf water potential was -1.04 MPa in infected seedlings versus -0.94 MPa in uninfected seedlings.
- Taxon
- Pinus densiflora
Pinus densiflorae1 - Treatment
- inoculatione0
- Interactor
- Bursaphelenchus xylophilus
Bursaphelenchus xylophilust0pathogen - Outcome
- midday leaf water potentialse0
- Direction
- lowerinferrede0
- Value
- -1.04 MPae0
- Qualifier
- -0.94 MPae0
- Comparator
- non-infected seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The midday leaf water potentials on the 35th day after the inoculation were -1.04 MPa in the infected seedlings, while -0.94 MPa in the non-infected seedlings”
e1“Pinus densiflora seedlings inoculated with the nematode”
t0“Pine Seedlings Inoculated with Bursaphelenchus xylophilus”
Claim · model-written summary
At day 56, predawn water potential was -0.71 MPa in infected seedlings versus -0.26 MPa in uninfected seedlings.
- Taxon
- Pinus densifloraPinus densiflorae1
- Treatment
- inoculated with Bursaphelenchus xylophilust0
- Interactor
- Bursaphelenchus xylophilusBursaphelenchus xylophilust0pathogen
- Outcome
- predawn water potentialse0
- Direction
- lowerinferrede0
- Value
- -0.71 MPae0
- Qualifier
- -0.26 MPae0
- Comparator
- non-infectede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The predawn water potentials on the 56th day were -0.71 MPa in the infected, while -0.26 MPa in the non-infected”
e1“Pinus densiflora seedlings inoculated with the nematode”
t0“Pine Seedlings Inoculated with Bursaphelenchus xylophilus”
Claim · model-written summary
Leaves of infected pine seedlings became yellow.
- Taxon
- Pinus densifloraPinus densiflorae1
- Interactor
- Bursaphelenchus xylophilusBursaphelenchus xylophilust0pathogen
- Outcome
- leaves of the infected seedlings became yellowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At this time the leaves of the infected seedlings became yellow and resin did not exude on the cut basal stem”
e1“Pinus densiflora seedlings inoculated with the nematode”
t0“Pine Seedlings Inoculated with Bursaphelenchus xylophilus”
Claim · model-written summary
Resin did not exude from cut basal stems of infected seedlings.
- Taxon
- Pinus densifloraPinus densiflorae1
- Interactor
- Bursaphelenchus xylophilusBursaphelenchus xylophilust0pathogen
- Outcome
- resin did not exude on the cut basal steme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At this time the leaves of the infected seedlings became yellow and resin did not exude on the cut basal stem”
e1“Pinus densiflora seedlings inoculated with the nematode”
t0“Pine Seedlings Inoculated with Bursaphelenchus xylophilus”
Claim · model-written summary
Nematode density peaked on day 28 and sharply dropped on day 68.
- Taxon
- Pinus densifloraPinus densiflorae1
- Interactor
- Bursaphelenchus xylophilusBursaphelenchus xylophilust0pathogen
- Outcome
- Density of the nematodee0
- Direction
- maximume0
- Qualifier
- dropped sharply on the 68th daye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Density of the nematode was maximum on the 28th day, but dropped sharply on the 68th day”
e1“Pinus densiflora seedlings inoculated with the nematode”
t0“Pine Seedlings Inoculated with Bursaphelenchus xylophilus”
Claim · model-written summary
Phloem and pith tissues became brown in infected seedlings.
- Taxon
- Pinus densifloraPinus densiflorae1
- Interactor
- Bursaphelenchus xylophilusBursaphelenchus xylophilust0pathogen
- Outcome
- phloem and pith tissues became browne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The phloem and pith tissues became brown and the resin exudation reduced in the infected seedlings”
e1“Pinus densiflora seedlings inoculated with the nematode”
t0“Pine Seedlings Inoculated with Bursaphelenchus xylophilus”
Claim · model-written summary
Resin exudation was reduced in infected seedlings.
- Taxon
- Pinus densifloraPinus densiflorae1
- Interactor
- Bursaphelenchus xylophilusBursaphelenchus xylophilust0pathogen
- Outcome
- resin exudatione0
- Direction
- reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The phloem and pith tissues became brown and the resin exudation reduced in the infected seedlings”
e1“Pinus densiflora seedlings inoculated with the nematode”
t0“Pine Seedlings Inoculated with Bursaphelenchus xylophilus”
The same questions in other papers
inoculation · Bursaphelenchus xylophilus · Pinus densiflora (Japanese red pine)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
1 paper more in this group
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.