Details
| Original language | English |
|---|---|
| Pages (from-to) | 1929-1931 |
| Number of pages | 3 |
| Journal | HORTSCIENCE |
| Volume | 43 |
| Issue number | 6 |
| Publication status | Published - 1 Oct 2008 |
Abstract
Formation of microcracks in the cuticular membrane (CM) of epidermal segments (ES) of apple [Malus sylvestris (L.) Mill. var. domestica (Borkh.) Mansf., 'Golden Delicious', 'Braeburn', 'Idared', 'Jonagold', and 'Topaz'; all grafted on 'Malling.9' rootstocks] fruit was studied after exposure of the surface of the ES to water. Potential strain of the CM on the ES was preserved by mounting a stainless steel washer on the fruit surface using an ethyl-cyanacrylate adhesive. Subsequently, ES were excised by tangentially cutting underneath the washer. The number of microcracks in the CM was established by light microscopy before and after a 48-h incubation period in deionized water. Within 48 h, the number of microcracks rapidly increased when the outer surface of ES of 'Golden Delicious' apple was exposed to water, but there was essentially no increase in microcracks when exposed to the ambient atmosphere. The occurrence of microcracks depended on the region of the fruit surface and increased from the rim of the pedicel cavity to the calyx. Increasing the relative humidity (greater than 75% relative humidity at 22°C) above the outer surface of the ES exponentially increased the number of microcracks. Water-induced microcracking was not limited to 'Golden Delicious', but also occurred in 'Braeburn', 'Jonagold', 'Topaz', and, to a markedly smaller extent, in 'Idared' apple. The mechanism of formation of microcracks in the CM of apple fruit and their role in fruit russeting are discussed.
Keywords
- Crack, Cuticular membrane, Malus sylvestris, Russeting, Water, Wetness
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Horticulture
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In: HORTSCIENCE, Vol. 43, No. 6, 01.10.2008, p. 1929-1931.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Surface moisture induces microcracks in the cuticle of 'Golden Delicious' apple
AU - Knoche, Moritz
AU - Grimm, Eckhard
PY - 2008/10/1
Y1 - 2008/10/1
N2 - Formation of microcracks in the cuticular membrane (CM) of epidermal segments (ES) of apple [Malus sylvestris (L.) Mill. var. domestica (Borkh.) Mansf., 'Golden Delicious', 'Braeburn', 'Idared', 'Jonagold', and 'Topaz'; all grafted on 'Malling.9' rootstocks] fruit was studied after exposure of the surface of the ES to water. Potential strain of the CM on the ES was preserved by mounting a stainless steel washer on the fruit surface using an ethyl-cyanacrylate adhesive. Subsequently, ES were excised by tangentially cutting underneath the washer. The number of microcracks in the CM was established by light microscopy before and after a 48-h incubation period in deionized water. Within 48 h, the number of microcracks rapidly increased when the outer surface of ES of 'Golden Delicious' apple was exposed to water, but there was essentially no increase in microcracks when exposed to the ambient atmosphere. The occurrence of microcracks depended on the region of the fruit surface and increased from the rim of the pedicel cavity to the calyx. Increasing the relative humidity (greater than 75% relative humidity at 22°C) above the outer surface of the ES exponentially increased the number of microcracks. Water-induced microcracking was not limited to 'Golden Delicious', but also occurred in 'Braeburn', 'Jonagold', 'Topaz', and, to a markedly smaller extent, in 'Idared' apple. The mechanism of formation of microcracks in the CM of apple fruit and their role in fruit russeting are discussed.
AB - Formation of microcracks in the cuticular membrane (CM) of epidermal segments (ES) of apple [Malus sylvestris (L.) Mill. var. domestica (Borkh.) Mansf., 'Golden Delicious', 'Braeburn', 'Idared', 'Jonagold', and 'Topaz'; all grafted on 'Malling.9' rootstocks] fruit was studied after exposure of the surface of the ES to water. Potential strain of the CM on the ES was preserved by mounting a stainless steel washer on the fruit surface using an ethyl-cyanacrylate adhesive. Subsequently, ES were excised by tangentially cutting underneath the washer. The number of microcracks in the CM was established by light microscopy before and after a 48-h incubation period in deionized water. Within 48 h, the number of microcracks rapidly increased when the outer surface of ES of 'Golden Delicious' apple was exposed to water, but there was essentially no increase in microcracks when exposed to the ambient atmosphere. The occurrence of microcracks depended on the region of the fruit surface and increased from the rim of the pedicel cavity to the calyx. Increasing the relative humidity (greater than 75% relative humidity at 22°C) above the outer surface of the ES exponentially increased the number of microcracks. Water-induced microcracking was not limited to 'Golden Delicious', but also occurred in 'Braeburn', 'Jonagold', 'Topaz', and, to a markedly smaller extent, in 'Idared' apple. The mechanism of formation of microcracks in the CM of apple fruit and their role in fruit russeting are discussed.
KW - Crack
KW - Cuticular membrane
KW - Malus sylvestris
KW - Russeting
KW - Water
KW - Wetness
UR - http://www.scopus.com/inward/record.url?scp=52449103201&partnerID=8YFLogxK
U2 - 10.21273/hortsci.43.6.1929
DO - 10.21273/hortsci.43.6.1929
M3 - Article
AN - SCOPUS:52449103201
VL - 43
SP - 1929
EP - 1931
JO - HORTSCIENCE
JF - HORTSCIENCE
SN - 0018-5345
IS - 6
ER -