Abstract
Botrytis cinerea and Sclerotinia sclerotiorum are fungal pathogens that cause the decay of many fruits and vegetables. Ozone may be used as an antimicrobial agent to control the decay. The effect of gaseous ozone on spore viability of B. cinerea and mycelial growth of B. cinerea and S. sclerotiorum were investigated. Spore viability of B. cinerea was reduced by over 99.5% (P < 0.01) and height of the aerial mycelium was reduced from 4.7 mm in the control to less than 1 mm after exposure to 450 or 600 ppb ozone for 48 h at 20 degrees C. Sporulation of B. cinerea was also substantially inhibited by ozone treatments. However, ozone had no significant effect on mycelial growth of S. sclerotiorum in vitro. Decay and quality parameters including color, chlorophyll fluorescence (CF), and ozone injury were further assessed for various horticultural commodities (apple, grape, highbush blueberry, and carrot) treated with 450 ppb of ozone for 48 h at 20 degrees C over a period of 12 d. Lesion size and height of the aerial mycelium were significantly reduced by the ozone treatment on carrots inoculated with mycelial agar plugs of B. cinerea or S. sclerotiorum. Lesion size was also reduced on treated apples inoculated with 5 x 10(6) spores/mL of B. cinerea, and decay incidence of treated grapes was reduced. The 450 ppb ozone for 48 h treatment had no significant effect on color of carrots and apples or on CF of apples and grapes. Ozone, an environmentally sound antimicrobial agent, inactivates microorganisms through oxidization and residual ozone spontaneously decomposes to nontoxic products. It may be applied to fruits and vegetables to reduce decay and extend shelf life.
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Claims 10
Claim · model-written summary
Ozone reduced Botrytis cinerea spore viability by over 99.5%.
- Taxon
- apple, grape, highbush blueberry, and carrote1
- Treatment
- 450 or 600 ppb ozone for 48 he2
- Interactor
- B. cinerea
Botrytis cinereae2pathogen - Outcome
- Spore viabilitye2
- Direction
- reducede2
- Value
- over 99.5%e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“various horticultural commodities (apple, grape, highbush blueberry, and carrot)”
e2“Spore viability of B. cinerea was reduced by over 99.5% (P < 0.01) and height of the aerial mycelium was reduced from 4.7 mm in the control to less than 1 mm after exposure to 450 or 600 ppb ozone for 48 h at 20 degrees C”
Claim · model-written summary
Ozone reduced aerial mycelium height of Botrytis cinerea to less than 1 mm.
- Taxon
- apple, grape, highbush blueberry, and carrote1
- Treatment
- 450 or 600 ppb ozone for 48 he2
- Interactor
- B. cinereaBotrytis cinereae2pathogen
- Outcome
- height of the aerial myceliume2
- Direction
- reducede2
- Value
- less than 1 mme2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“various horticultural commodities (apple, grape, highbush blueberry, and carrot)”
e2“Spore viability of B. cinerea was reduced by over 99.5% (P < 0.01) and height of the aerial mycelium was reduced from 4.7 mm in the control to less than 1 mm after exposure to 450 or 600 ppb ozone for 48 h at 20 degrees C”
Claim · model-written summary
Ozone substantially inhibited sporulation of Botrytis cinerea.
- Taxon
- apple, grape, highbush blueberry, and carrote1
- Treatment
- ozone treatmentse3
- Interactor
- B. cinereaBotrytis cinereae3pathogen
- Outcome
- Sporulatione3
- Direction
- inhibitede3
- Qualifier
- substantiallye3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“various horticultural commodities (apple, grape, highbush blueberry, and carrot)”
e3“Sporulation of B. cinerea was also substantially inhibited by ozone treatments”
Claim · model-written summary
Ozone had no significant effect on mycelial growth of Sclerotinia sclerotiorum in vitro.
- Taxon
- apple, grape, highbush blueberry, and carrote1
- Treatment
- ozonee4
- Interactor
- S. sclerotiorum
Sclerotinia sclerotiorume4pathogen - Outcome
- mycelial growthe4
- Direction
- no_changeinferrede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“various horticultural commodities (apple, grape, highbush blueberry, and carrot)”
e4“However, ozone had no significant effect on mycelial growth of S. sclerotiorum in vitro”
Claim · model-written summary
Ozone significantly reduced lesion size and aerial mycelium height on inoculated carrots.
- Taxon
- carrots
Daucus carotae5 - Treatment
- ozone treatmente5
- Interactor
- B. cinereaBotrytis cinereae5pathogen
- Second interactor
- S. sclerotiorumSclerotinia sclerotiorume5pathogen
- Outcome
- Lesion size and height of the aerial myceliume5
- Direction
- reducede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“various horticultural commodities (apple, grape, highbush blueberry, and carrot)”
e5“Lesion size and height of the aerial mycelium were significantly reduced by the ozone treatment on carrots inoculated with mycelial agar plugs of B. cinerea or S. sclerotiorum”
Claim · model-written summary
Ozone reduced lesion size on treated apples inoculated with Botrytis cinerea.
- Taxon
- apples
Malus domesticae6 - Treatment
- 450 ppb ozone for 48 he1
- Interactor
- B. cinereaBotrytis cinereae6pathogen
- Outcome
- Lesion sizee6
- Direction
- reducede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Lesion size was also reduced on treated apples inoculated with 5 x 10(6) spores/mL of B. cinerea”
e1“The 450 ppb ozone for 48 h treatment had no significant effect on color of carrots and apples or on CF of apples and grapes”
Claim · model-written summary
Ozone reduced decay incidence of treated grapes.
Not reportedComparator
Verbatim
e7“decay incidence of treated grapes was reduced”
e1“The 450 ppb ozone for 48 h treatment had no significant effect on color of carrots and apples or on CF of apples and grapes”
Claim · model-written summary
The 450 ppb ozone treatment had no significant effect on colour of carrots.
- Taxon
- carrotsDaucus carotae0
- Treatment
- 450 ppb ozone for 48 he0
- Outcome
- colore0
- Direction
- no_changeinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 450 ppb ozone for 48 h treatment had no significant effect on color of carrots and apples or on CF of apples and grapes”
Claim · model-written summary
The 450 ppb ozone treatment had no significant effect on chlorophyll fluorescence of apples and grapes.
- Taxon
- applesMalus domesticae0
- Treatment
- 450 ppb ozone for 48 he0
- Outcome
- CFe0
- Direction
- no_changeinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 450 ppb ozone for 48 h treatment had no significant effect on color of carrots and apples or on CF of apples and grapes”
Claim · model-written summary
The authors suggest ozone may be applied to fruits and vegetables to reduce decay and extend shelf life.
Verbatim
e0“It may be applied to fruits and vegetables to reduce decay and extend shelf life”
The same questions in other papers
ozone · quality: postharvest · Daucus carota (carrot)Positive and negative results
1 in the opposite direction
- positive
ozone · Sclerotinia sclerotiorum · Daucus carota (carrot)Positive and negative results
1 in the opposite direction
- positive
ozone · disease · VitisPositive and negative results
6 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
4 papers more in this group
See all 8 papers →ozone · Botrytis cinerea · Malus domestica (apple)Results agree
1 paper in the same direction as this paper
- positive
ozone · Botrytis cinerea · Daucus carota (carrot)Results agree
1 paper in the same direction as this paper
- positive
ozone · Botrytis cinerea · VitisResults agree
3 papers in the same direction as this paper
- positive
- positive
- 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.