Abstract
The root-knot nematode (RKN), Meloidogyne incognita (Kofoid and White) Chitwood, is a sedentary endoparasite that retards growth and development of cotton, Gossypium spp. L., by attacking the root system, causing galling, stunting, and other adverse effects. All commercial cultivars have susceptibility to RKN, although they vary in degree of susceptibility. Plant breeding has led to the development of resistant germplasm. Subsequent work has indicated that the mechanism of resistance may involve two major genes and that resistant lines may produce a unique 14 kDa protein. In the present study, the protein content of roots increased more in a susceptible line than in a resistant line after inoculation with RKN. The mole ratios of individual amino acids in RKN infected roots also were different from those of uninfected roots, and changes due to infection were greater in the susceptible line than in the resistant line. The results indicate protein synthesis in roots is modified by RKN. Alternatively, increases in protein content may be attributed in part to RKN protein. Cellulose was lower after infection in both susceptible and resistant lines. Keywords: Root-knot nematode; Meloidogyne incognita; cotton; Gossypium spp.; amino acids; protein; cellulose
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Claims 6
Claim · model-written summary
After nematode inoculation, root protein content increased more in the susceptible cotton line than in the resistant line.
- Taxon
- cotton
Gossypium hirsutume1 - Material
- susceptible linee2
- Treatment
- inoculation with RKNe2
- Interactor
- Meloidogyne incognita
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogyne incognitae0pathogen - Outcome
- protein content of rootse2
- Direction
- increased moree2
- Comparator
- resistant linee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“Meloidogyne incognita (Kofoid and White) Chitwood”
e1“cotton, Gossypium spp. L.”
e2“the protein content of roots increased more in a susceptible line than in a resistant line after inoculation with RKN”
Claim · model-written summary
Amino acid mole ratios differed between infected and uninfected cotton roots.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- RKN infectede2
- Interactor
- Meloidogyne incognitaMeloidogyne incognitae1pathogen
- Outcome
- mole ratios of individual amino acidse2
- Direction
- differente2
- Comparator
- uninfected rootse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cotton, Gossypium spp. L.”
e1“Meloidogyne incognita (Kofoid and White) Chitwood”
e2“The mole ratios of individual amino acids in RKN infected roots also were different from those of uninfected roots”
Claim · model-written summary
Infection-related amino acid changes were greater in the susceptible than the resistant cotton line.
- Taxon
- cottonGossypium hirsutume0
- Material
- susceptible linee2
- Interactor
- Meloidogyne incognitaMeloidogyne incognitae1pathogen
- Outcome
- changes due to infectione2
- Direction
- greatere2
- Comparator
- resistant linee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cotton, Gossypium spp. L.”
e1“Meloidogyne incognita (Kofoid and White) Chitwood”
e2“changes due to infection were greater in the susceptible line than in the resistant line”
Claim · model-written summary
The authors infer that nematode infection modifies protein synthesis in cotton roots.
- Taxon
- cottonGossypium hirsutume0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitae1pathogen
- Outcome
- protein synthesis in rootse2
- Qualifier
- modified by RKNe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cotton, Gossypium spp. L.”
e1“Meloidogyne incognita (Kofoid and White) Chitwood”
e2“The results indicate protein synthesis in roots is modified by RKN.”
Claim · model-written summary
The authors offer nematode protein as a possible contributor to increased root protein content.
- Taxon
- cottonGossypium hirsutume0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitae1pathogen
- Outcome
- increases in protein contente2
- Qualifier
- RKN proteine2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cotton, Gossypium spp. L.”
e1“Meloidogyne incognita (Kofoid and White) Chitwood”
e2“increases in protein content may be attributed in part to RKN protein”
Claim · model-written summary
Root cellulose was lower after nematode infection in both susceptible and resistant cotton lines.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- infectione2
- Interactor
- Meloidogyne incognitaMeloidogyne incognitae1pathogen
- Outcome
- Cellulosee2
- Direction
- lowere2
- Qualifier
- both susceptible and resistant linese2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cotton, Gossypium spp. L.”
e1“Meloidogyne incognita (Kofoid and White) Chitwood”
e2“Cellulose was lower after infection in both susceptible and resistant lines.”
The same questions in other papers
infection · Meloidogyne incognita · Gossypium hirsutum (cotton)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
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.