Abstract
The effects of six nitrogen(N) levels and inoculation with Colletotrichum higginsianum on plas-malemma permeability, polyphenoloxidase(PPO)activity, the content of ascorbic acid (AsA) and malonialde-hyde(MDA)in Flowering Chinese Cabbage (Brassica parachinensis) , and the relationship between membrane lipid peroxidation and incidence of anthracnose were studied. The results showed that anthrax fungi could enhance the degradation of AsA, and the degradative effect of low N was more significant than that of high N. PPO activity of leaves was increased after inoculation with C. higginsianum. Compared with high, low N levels and non-fertilization, the suitable N level could significantly strengthen PPO activity. The integrity of cell membrane of leaves was gradually injured after infected with C. higginsianum in all N treatments, permeability of cell membrane augmented rapidly, but the cell membrane of the suitable N level was less injured than that of high N and non-fertilization treatments. With lastingness of the infection with C. higginsianum, MDA content in the leaves increased consistently, the results indicated that after the plant infected with C. higginsianum , membrane lipid peroxidation was strengthened and product of lipid peroxidation was increased. Low and suitable N treatments would accelerate the level of lipid peroxidation in early stage after the plant infected with C. higginsianum, but inhibition effect in the later, while the effect of non-fertilization or high N level was contrary.
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Claims 8
Claim · model-written summary
Infection with Colletotrichum higginsianum enhanced degradation of ascorbic acid in Flowering Chinese Cabbage.
- Taxon
- Flowering Chinese Cabbagee0
- Treatment
- inoculation with Colletotrichum higginsianume2
- Interactor
- anthrax fungie1pathogen
- Outcome
- degradation of AsAe1
- Direction
- enhancee1
Not reportedComparator
Verbatim
e0“Flowering Chinese Cabbage (Brassica parachinensis)”
e1“anthrax fungi could enhance the degradation of AsA”
e2“inoculation with Colletotrichum higginsianum”
Claim · model-written summary
Low and suitable N levels accelerated membrane lipid peroxidation early after C. higginsianum infection but inhibited it later; high N and non-fertilization had the opposite effect.
Verbatim
e0“Flowering Chinese Cabbage (Brassica parachinensis)”
e3“Low and suitable N treatments would accelerate the level of lipid peroxidation in early stage after the plant infected with C. higginsianum, but inhibition effect in the later, while the effect of non-fertilization or high N level was contrary”
Claim · model-written summary
The suitable N level significantly strengthened PPO activity compared with high, low N levels and non-fertilization.
Verbatim
e0“Flowering Chinese Cabbage (Brassica parachinensis)”
e4“Compared with high, low N levels and non-fertilization, the suitable N level could significantly strengthen PPO activity”
Claim · model-written summary
Inoculation with C. higginsianum increased PPO activity of leaves.
- Taxon
- Flowering Chinese Cabbagee0
- Organ / stage
- leavese5
- Treatment
- inoculation with C. higginsianume5
- Interactor
- C. higginsianumColletotrichum higginsianume5pathogen
- Outcome
- PPO activity of leavese5
- Direction
- increasede5
Not reportedComparator
Verbatim
e0“Flowering Chinese Cabbage (Brassica parachinensis)”
e5“PPO activity of leaves was increased after inoculation with C. higginsianum”
Claim · model-written summary
C. higginsianum infection injured leaf cell membrane integrity and augmented membrane permeability in all N treatments.
- Taxon
- Flowering Chinese Cabbagee0
- Organ / stage
- leavese6
- Treatment
- infected with C. higginsianume6
- Interactor
- C. higginsianumColletotrichum higginsianume6pathogen
- Outcome
- permeability of cell membranee6
- Direction
- augmented rapidlye6
Not reportedComparator
Verbatim
e0“Flowering Chinese Cabbage (Brassica parachinensis)”
e6“The integrity of cell membrane of leaves was gradually injured after infected with C. higginsianum in all N treatments, permeability of cell membrane augmented rapidly”
Claim · model-written summary
The suitable N level left cell membrane less injured than high N and non-fertilization after infection.
Verbatim
e0“Flowering Chinese Cabbage (Brassica parachinensis)”
e7“the cell membrane of the suitable N level was less injured than that of high N and non-fertilization treatments”
Claim · model-written summary
With lasting C. higginsianum infection, MDA content in leaves increased consistently.
- Taxon
- Flowering Chinese Cabbagee0
- Organ / stage
- leavese7
- Treatment
- lastingness of the infection with C. higginsianume7
- Interactor
- C. higginsianumColletotrichum higginsianume7pathogen
- Outcome
- MDA contente7
- Direction
- increased consistentlye7
Not reportedComparator
Verbatim
e0“Flowering Chinese Cabbage (Brassica parachinensis)”
e7“With lastingness of the infection with C. higginsianum, MDA content in the leaves increased consistently”
Claim · model-written summary
After infection with C. higginsianum, membrane lipid peroxidation was strengthened and the lipid peroxidation product was increased.
- Taxon
- Flowering Chinese Cabbagee0
- Treatment
- infected with C. higginsianume7
- Interactor
- C. higginsianumColletotrichum higginsianume7pathogen
- Outcome
- membrane lipid peroxidatione7
- Direction
- strengthenede7
Not reportedComparator
Verbatim
e0“Flowering Chinese Cabbage (Brassica parachinensis)”
e7“after the plant infected with C. higginsianum , membrane lipid peroxidation was strengthened and product of lipid peroxidation was increased”
The same questions in other papers
nitrogen · physiology: antioxidant enzymes · Brassica rapa (field mustard)Results agree
1 paper in the same direction as this paper
- positive
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.