Abstract
The potato cyst nematode (PCN) causes extensive crop losses worldwide. Because the hatching of PCN requires host-derived molecules known as hatching factors (HFs), regulating HF production in host plants may help to control this harmful pest. Solanoeclepin A (SEA), isolated from potato, is the most active HF for PCN; however, its biosynthesis is completely unknown. We discovered a HF called solanoeclepin B (SEB) from potato and tomato root exudates and showed that SEB was biosynthesized in the plant and converted to SEA outside the plant by biotic agents. Moreover, we identified five SEB biosynthetic genes encoding three 2-oxoglutarate-dependent dioxygenases and two cytochrome P450 monooxygenases in tomato. Exudates from tomato hairy roots in which each of the genes was disrupted contained no SEB and had low hatch-stimulating activity for PCN. These findings will help to breed crops with a lower risk of PCN infection.
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Claims 6
Claim · model-written summary
Solanoeclepin B was discovered in potato and tomato root exudates as a hatching factor.
- Taxon
- potato
Solanum tuberosume0 - Organ / stage
- root exudatese0
- Interactor
- PCNe1pest
- Outcome
- solanoeclepin B (SEB)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We discovered a HF called solanoeclepin B (SEB) from potato and tomato root exudates”
e1“The potato cyst nematode (PCN) causes extensive crop losses worldwide.”
Claim · model-written summary
Solanoeclepin B was biosynthesized in the plant.
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- SEB was biosynthesizede0
- Qualifier
- in the plante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SEB was biosynthesized in the plant”
t0“potato”
Claim · model-written summary
Biotic agents converted solanoeclepin B to solanoeclepin A outside the plant.
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- converted to SEAe0
- Qualifier
- outside the plant by biotic agentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SEB was biosynthesized in the plant and converted to SEA outside the plant by biotic agents.”
t0“potato”
Claim · model-written summary
Five SEB biosynthetic genes were identified in tomato.
- Taxon
- tomato
Solanum lycopersicume0 - Gene
- SEB biosynthetic genese0
- Outcome
- SEB biosynthetic genese0
- Value
- fivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“we identified five SEB biosynthetic genes encoding three 2-oxoglutarate-dependent dioxygenases and two cytochrome P450 monooxygenases in tomato.”
Claim · model-written summary
Disruption of each identified gene eliminated SEB from tomato hairy-root exudates.
- Taxon
- tomatoSolanum lycopersicume0
- Organ / stage
- hairy rootse0
- Treatment
- each of the genes was disruptede0
- Outcome
- no SEBe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exudates from tomato hairy roots in which each of the genes was disrupted contained no SEB”
Claim · model-written summary
Disruption of each gene left tomato root exudates with low PCN hatch-stimulating activity.
- Taxon
- tomatoSolanum lycopersicume0
- Organ / stage
- hairy rootse0
- Treatment
- each of the genes was disruptede0
- Interactor
- PCNe0pest
- Outcome
- hatch-stimulating activity for PCNe0
- Direction
- lowe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exudates from tomato hairy roots in which each of the genes was disrupted contained no SEB and had low hatch-stimulating activity for PCN.”
The same questions in other papers
loss of function · pest · Solanum lycopersicum (tomato)Positive and negative results
6 papers in the same direction as this paper · 10 in the opposite direction
- no effect
- negative
- negative
13 papers more in this group
See all 17 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.