TY - JOUR
T1 - Growth inhibition of persimmon fruit caused by calyx lobe removal and possible involvement of endogenous hormones
AU - Yonemori, Keizo
AU - Hirano, Ken
AU - Sugiura, Akira
N1 - Funding Information:
This work was supportedi,n part, by grant-in-aid( no. 03454046f)r om the Ministry of Education,S ciencea nd Culture,J apan.W e gratefullya cknowledge thec riticalr eadinga nd suggestionosf them anuscripbt y Dr. D.S. Fujii, Depart-mento f PomologyU, niversityo f California,D avis.
Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 1995/2
Y1 - 1995/2
N2 - Growth inhibition of persimmon fruit (Diospyros kaki L.) was induced by calyx lobe removal in the middle of growth stage I (13 July) or at the beginning of stage II (24 August), but no inhibition was observed in the treatment at growth stage III (2 October). Lobe removal at stages I and II resulted in fruit weight reduction of 44% and 76% of the controls, respectively. Coincident with growth inhibition of the treated fruits, the ratio of sucrose to hexoses (glucose and fructose) increased significantly in the flesh, indicating an unsuitable gradient for further import of the sucrose into the sink organs. The effects of calyx lobe removal on endogenous gibberellin (GA)-like substances and abscisic acid (ABA) content were also investigated. Growth inhibition was not related to changes in the activity of endogenous GA-like substances. However, a significant decrease of ABA content after calyx lobe removal at growth stage I or stage II may suggest its involvement in growth inhibition of persimmon fruit. Possible mechanism of growth inhibition by calyx lobe removal was also discussed focusing on sugar metabolism.
AB - Growth inhibition of persimmon fruit (Diospyros kaki L.) was induced by calyx lobe removal in the middle of growth stage I (13 July) or at the beginning of stage II (24 August), but no inhibition was observed in the treatment at growth stage III (2 October). Lobe removal at stages I and II resulted in fruit weight reduction of 44% and 76% of the controls, respectively. Coincident with growth inhibition of the treated fruits, the ratio of sucrose to hexoses (glucose and fructose) increased significantly in the flesh, indicating an unsuitable gradient for further import of the sucrose into the sink organs. The effects of calyx lobe removal on endogenous gibberellin (GA)-like substances and abscisic acid (ABA) content were also investigated. Growth inhibition was not related to changes in the activity of endogenous GA-like substances. However, a significant decrease of ABA content after calyx lobe removal at growth stage I or stage II may suggest its involvement in growth inhibition of persimmon fruit. Possible mechanism of growth inhibition by calyx lobe removal was also discussed focusing on sugar metabolism.
KW - Abscisic acid
KW - Diospyros kaki
KW - Fruit development
KW - Gibberellin
KW - Sugar metabolism
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U2 - 10.1016/0304-4238(94)00731-T
DO - 10.1016/0304-4238(94)00731-T
M3 - Article
AN - SCOPUS:0029137167
VL - 61
SP - 37
EP - 45
JO - Scientia Horticulturae
JF - Scientia Horticulturae
SN - 0304-4238
IS - 1-2
ER -