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＜departmental bulletin paper＞
Amylase Activities and Starch Contents as Affected by Source-Sink Relation during Initial Regrowth of Phasey Bean (Macroptilium lathyroides (L..) Urb.) 

Creator
Creator Name
Asano, Yoki
浅野, 陽樹
Affiliation
Affiliation Name
Laboratory of Animal Feed Sciences, Division of Animal Science, Department of Animal and Marine Bioresource Scineces, Graduate School of Bioresource and Environmental Sciences, Kyushu University
九州大学大学院生物資源環境科学府
Creator Name
Tobisa, Manabu
飛佐, 学
Affiliation
Affiliation Name
Laboratory of Animal Feed Science, Division of Animal Science, Department of Animal and Marine Bioresource Sciences, Faculty of Agriculture, Kyushu University
九州大学農学部家畜生産学
Author PID
K001569
Creator Name
Shimojo, Masataka
下條, 雅敬
Affiliation
Affiliation Name
Laboratory of Animal Feed Science, Division of Animal Science, Department of Animal and Marine Bioresource Sciences, Faculty of Agriculture, Kyushu University
九州大学農学部家畜生産学
Author PID
K001529
Creator Name
Masuda, Yasuhisa
増田, 泰久
Affiliation
Affiliation Name
Laboratory of Animal Feed Science, Division of Animal Science, Department of Animal and Marine Bioresource Sciences, Faculty of Agriculture, Kyushu University
九州大学農学部家畜生産学
Language
English
Publisher
Kyushu University
九州大学農学部
Date
2002-10-30
Source Title
Journal of the Faculty of Agriculture, Kyushu University
Vol
47
Issue
1
First Page
29
Last Page
36
Publication Type
Version of Record
Access Rights
open access
Crossref DOI
https://doi.org/10.5109/24456
Related DOI
九州大学農学部紀要 || 47(1) || p29-36
Journal of the Faculty of Agriculture, Kyushu University || 47(1) || p29-36
http://www.agr.kyushu-u.ac.jp/
Related URI
九州大学農学部紀要 || 47(1) || p29-36
Journal of the Faculty of Agriculture, Kyushu University || 47(1) || p29-36
http://www.agr.kyushu-u.ac.jp/
Relation
九州大学農学部紀要 || 47(1) || p29-36
Journal of the Faculty of Agriculture, Kyushu University || 47(1) || p29-36
http://www.agr.kyushu-u.ac.jp/

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Details

PISSN
0023-6152
NCID
AA00697606
Record ID
24456
Peer-Reviewed
Unrefereed
Subject Terms
LTP
HTP
Regrowth
Carbohydrate utilization
Amylase
ISSN
0023-6152
NCID
AA00697606
Notes
Our objects are to determine physiological mechanisms controlling the shoot regrowth with storage starch degradation by amylases during initial regrowth of phasey bean. Plants were grown and transferred into the controlled environmental chamber set at 200℃ on 30℃ （low on high temperature pretreatment: LTP and HTP, respectively）. After an 8-day adjustment period, all plants were defoliated and grown at 25℃. Amylase activities and carbohydrate concentrations in stems and roots were compared on day 0, 1, 3, and 6 after defoliation. Starch contents at defoliation and the consumption during regrowth were higher in LTP than in HTP. As the result, new shoot production during initial 6 days was five-fold higher in LTP than in HTP, indicating the importance of the carbohydrate utilization for regrowth. Although a-amylase activity showed almost the same level between LTP and HTP, the higher starch degradation in LTP than in HTP was observed during the first 1 day. Between day 1 and 3, a-amylase activity was elevated due to a sink demand in LTP. The disappearance of the increase in a-amylase activities between day 3 and 6 may be cause by the depletion starch but likely not by the weakening demand in sink organs.
Created Date 2012.08.02
Modified Date 2022.11.11

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