Abstract
Abstract The root‐knot nematode, Meloidogyne graminicola , is an important pest of rice in many rice production areas worldwide. The endophyte Fusarium moniliforme strain Fe14, isolated from a disinfected root of rice, has previously shown potential antagonistic activity against M. graminicola . This study shows the effects of Fe14 on M. graminicola behaviour, infection, development and reproduction. The endophyte Fe14 colonisation significantly reduced M. graminicola penetration into rice roots by 55% and increased the male to female ratio nine times. The endophyte also delayed juvenile development into female inside the rice root. These results suggest a suboptimal performance of the giant cell and a cumulative effect of the endophyte on the long‐term root‐knot nematode population development. In split‐root assays, the application of Fe14 at the inducer side significantly reduced nematode invasion at the responder side by 38% and 60% in two independent trials. This result suggests a systemic effect of the endophyte on rice plants. The root exudates from Fe14‐treated plants were either less attractive or had repellent effect on nematode movement. The results, when compared to what was described for other endophytic Fusarium against other nematode species, may indicate a basal response mechanism initiated in the plant by endophytic Fusarium spp. The present study may give leads for unravelling the molecular mechanisms responsible for the induced systemic defence responses in plants.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
Fe14 colonisation reduced M. graminicola penetration into rice roots by 55%.
- Taxon
- rice
Oryza sativae1 - Treatment
- endophyte Fe14 colonisatione1
- Interactor
- M. graminicolaMeloidogyne graminicolae1pest
- Outcome
- M. graminicola penetration into rice rootse1
- Direction
- reducede1
- Value
- 55%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“has previously shown potential antagonistic activity against M. graminicola”
e1“The endophyte Fe14 colonisation significantly reduced M. graminicola penetration into rice roots by 55% and increased the male to female ratio nine times”
Claim · model-written summary
Fe14 colonisation increased the male to female ratio of M. graminicola nine times.
- Taxon
- riceOryza sativae1
- Treatment
- endophyte Fe14 colonisatione1
- Interactor
- M. graminicolaMeloidogyne graminicolae1pest
- Outcome
- male to female ratioe1
- Direction
- increasede1
- Value
- nine timese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“has previously shown potential antagonistic activity against M. graminicola”
e1“The endophyte Fe14 colonisation significantly reduced M. graminicola penetration into rice roots by 55% and increased the male to female ratio nine times”
Claim · model-written summary
The endophyte delayed juvenile development of M. graminicola into females inside the rice root.
- Taxon
- riceOryza sativae2
- Treatment
- endophytee2
- Interactor
- M. graminicolaMeloidogyne graminicolae1pest
- Outcome
- juvenile development into femalee2
- Direction
- delayede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“M. graminicola penetration into rice roots”
e2“The endophyte also delayed juvenile development into female inside the rice root”
Claim · model-written summary
Fe14 applied on the inducer side reduced nematode invasion on the responder side by 38% in two independent trials.
- Taxon
- riceOryza sativat0
- Treatment
- application of Fe14 at the inducer sidee3
- Outcome
- nematode invasion at the responder sidee3
- Direction
- reducede3
- Value
- 38%e3
- Qualifier
- in two independent trialse3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Meloidogyne graminicola in rice”
e0“has previously shown potential antagonistic activity against M. graminicola”
e3“In split‐root assays, the application of Fe14 at the inducer side significantly reduced nematode invasion at the responder side by 38% and 60% in two independent trials”
Claim · model-written summary
Fe14 applied on the inducer side reduced nematode invasion on the responder side by 60% in two independent trials.
- Taxon
- riceOryza sativat0
- Treatment
- application of Fe14 at the inducer sidee3
- Outcome
- nematode invasion at the responder sidee3
- Direction
- reducede3
- Value
- 60%e3
- Qualifier
- in two independent trialse3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Meloidogyne graminicola in rice”
e0“has previously shown potential antagonistic activity against M. graminicola”
e3“In split‐root assays, the application of Fe14 at the inducer side significantly reduced nematode invasion at the responder side by 38% and 60% in two independent trials”
Claim · model-written summary
Root exudates from Fe14-treated rice plants were less attractive to nematodes or repellent to nematode movement.
- Taxon
- riceOryza sativat0
- Treatment
- root exudates from Fe14e5
- Outcome
- nematode movemente5
- Direction
- less attractivee5
- Qualifier
- had repellent effecte5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Meloidogyne graminicola in rice”
e5“The root exudates from Fe14‐treated plants were either less attractive or had repellent effect on nematode movement”
The same questions in other papers
allelopathy · Nematoda · Oryza sativa (rice)Positive and negative results
1 in the opposite direction
- no effect
inoculation · Meloidogyne graminicola · Oryza sativa (rice)Positive and negative results
7 papers in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- negative
9 papers more in this group
See all 13 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.