Abstract
Potato tubers are susceptible to wounding during post-harvest processes, leading to quality decline, perishability and large economic losses. In this study, the potato cultivar, ‘Longshu No.7′, was foliar-sprayed with 3% chitosan (w/v) three times during the pre-harvest period after flowering to evaluate the effect of foliar spraying with chitosan on suberization processing in the wounds of harvested potato tubers. Our results demonstrated that foliar sprayed with chitosan significantly reduced wound-induced fresh weight loss and dry rot disease index by 37.34% and 41.60% on day 28 after wounding, respectively. Foliar sprayed with chitosan accelerated the deposition of suberin polyphenolic and lignin at the wound sites of potato tubers with the formation of thicker cell layers. This occurred with increased localized activities of key enzymes in the suberin polyphenolic and lignin pathways, including phenylalanine ammonia lyase, 4-coumaryl-coenzyme A ligase, cinnamyl alcohol dehydrogenase and peroxidase (33.90–64.32%), as well as the contents of cinnamic acid, sinapic acid, flavonoids, lignins and total phenolics (19.70–23.46%) in the wounded sites of potato tubers on day 7 after wounding. Our results indicated that foliar application of chitosan accelerated wound-induced suberization of potato tubers and could mitigate post-harvest product damages.
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Claims 8
Claim · model-written summary
Foliar chitosan spraying reduced wound-induced fresh weight loss of potato tubers by 37.34% on day 28 after wounding.
- Taxon
- potato
Solanum tuberosume2 - Material
- Longshu No.7e2
- Treatment
- foliar sprayed with chitosane1
- Outcome
- wound-induced fresh weight losse1
- Direction
- reducede1
- Value
- 37.34%e1
- Qualifier
- on day 28 after woundinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“foliar sprayed with chitosan significantly reduced wound-induced fresh weight loss and dry rot disease index by 37.34% and 41.60% on day 28 after wounding, respectively”
e2“the potato cultivar, ‘Longshu No.7′, was foliar-sprayed with 3% chitosan (w/v)”
Claim · model-written summary
Foliar chitosan spraying reduced the dry rot disease index of potato tubers by 41.60% on day 28 after wounding.
- Taxon
- potatoSolanum tuberosume2
- Material
- Longshu No.7e2
- Treatment
- foliar sprayed with chitosane1
- Outcome
- dry rot disease indexe1
- Direction
- reducede1
- Value
- 41.60%e1
- Qualifier
- on day 28 after woundinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“foliar sprayed with chitosan significantly reduced wound-induced fresh weight loss and dry rot disease index by 37.34% and 41.60% on day 28 after wounding, respectively”
e2“the potato cultivar, ‘Longshu No.7′, was foliar-sprayed with 3% chitosan (w/v)”
Claim · model-written summary
Foliar chitosan spraying accelerated deposition of suberin polyphenolic and lignin at the wound sites of potato tubers.
- Taxon
- potatoSolanum tuberosume2
- Organ / stage
- wound sites of potato tuberse1
- Treatment
- Foliar sprayed with chitosane1
- Outcome
- deposition of suberin polyphenolic and lignine1
- Direction
- acceleratede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Foliar sprayed with chitosan accelerated the deposition of suberin polyphenolic and lignin at the wound sites of potato tubers with the formation of thicker cell layers”
e2“the potato cultivar, ‘Longshu No.7′, was foliar-sprayed with 3% chitosan (w/v)”
Claim · model-written summary
Foliar chitosan spraying led to the formation of thicker cell layers at the wound sites of potato tubers.
- Taxon
- potatoSolanum tuberosume2
- Organ / stage
- wound sites of potato tuberse1
- Treatment
- Foliar sprayed with chitosane1
- Outcome
- formation of thicker cell layerse1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Foliar sprayed with chitosan accelerated the deposition of suberin polyphenolic and lignin at the wound sites of potato tubers with the formation of thicker cell layers”
e2“the potato cultivar, ‘Longshu No.7′, was foliar-sprayed with 3% chitosan (w/v)”
Claim · model-written summary
Foliar chitosan spraying increased localized activities of phenylalanine ammonia lyase, 4-coumaryl-coenzyme A ligase and cinnamyl alcohol dehydrogenase in wounded potato tubers by 33.90–64.32%.
- Taxon
- potatoSolanum tuberosume2
- Treatment
- Foliar sprayed with chitosane2
- Gene
- phenylalanine ammonia lyase, 4-coumaryl-coenzyme A ligase, cinnamyl alcohol dehydrogenasee1
- Outcome
- localized activitiese1
- Direction
- increasede1
- Value
- 33.90–64.32%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“This occurred with increased localized activities of key enzymes in the suberin polyphenolic and lignin pathways, including phenylalanine ammonia lyase, 4-coumaryl-coenzyme A ligase, cinnamyl alcohol dehydrogenase and peroxidase (33.90–64.32%)”
e2“Foliar sprayed with chitosan accelerated the deposition of suberin polyphenolic and lignin at the wound sites of potato tubers with the formation of thicker cell layers”
Claim · model-written summary
Foliar chitosan spraying increased localized peroxidase activity in wounded potato tubers by 33.90–64.32%.
- Taxon
- potatoSolanum tuberosume2
- Treatment
- Foliar sprayed with chitosane2
- Gene
- peroxidasee1
- Outcome
- localized activitiese1
- Direction
- increasede1
- Value
- 33.90–64.32%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“This occurred with increased localized activities of key enzymes in the suberin polyphenolic and lignin pathways, including phenylalanine ammonia lyase, 4-coumaryl-coenzyme A ligase, cinnamyl alcohol dehydrogenase and peroxidase (33.90–64.32%)”
e2“Foliar sprayed with chitosan accelerated the deposition of suberin polyphenolic and lignin at the wound sites of potato tubers with the formation of thicker cell layers”
Claim · model-written summary
Foliar chitosan spraying raised contents of cinnamic acid, sinapic acid and flavonoids in wounded potato tubers by 19.70–23.46% on day 7 after wounding.
- Taxon
- potatoSolanum tuberosume2
- Organ / stage
- wounded sites of potato tuberse1
- Treatment
- Foliar sprayed with chitosane2
- Outcome
- contents of cinnamic acid, sinapic acid, flavonoidse1
- Direction
- increaseinferrede1
- Value
- 19.70–23.46%e1
- Qualifier
- on day 7 after woundinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“as well as the contents of cinnamic acid, sinapic acid, flavonoids, lignins and total phenolics (19.70–23.46%) in the wounded sites of potato tubers on day 7 after wounding”
e2“Foliar sprayed with chitosan accelerated the deposition of suberin polyphenolic and lignin at the wound sites of potato tubers with the formation of thicker cell layers”
Claim · model-written summary
Foliar chitosan spraying raised contents of lignins and total phenolics in wounded potato tubers by 19.70–23.46% on day 7 after wounding.
- Taxon
- potatoSolanum tuberosume2
- Organ / stage
- wounded sites of potato tuberse1
- Treatment
- Foliar sprayed with chitosane2
- Outcome
- lignins and total phenolicse1
- Direction
- increaseinferrede1
- Value
- 19.70–23.46%e1
- Qualifier
- on day 7 after woundinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“as well as the contents of cinnamic acid, sinapic acid, flavonoids, lignins and total phenolics (19.70–23.46%) in the wounded sites of potato tubers on day 7 after wounding”
e2“Foliar sprayed with chitosan accelerated the deposition of suberin polyphenolic and lignin at the wound sites of potato tubers with the formation of thicker cell layers”
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