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הספר "אוצר וולקני"
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פותח על ידי קלירמאש פתרונות בע"מ -
Constitutively overexpressing a tomato fructokinase gene (LeFRK1) in cotton (Gossypium hirsutum L. cv. Coker 312) positively affects plant vegetative growth, boll number and seed cotton yield
Year:
2015
Source of publication :
Functional Plant Biology
Authors :
גרנות, דוד
;
.
Volume :
42
Co-Authors:
Mukherjee, T., Department of Biological Sciences, Texas Tech University, Lubbock, TX, United States
Ivanova, M., Department of Biological Sciences, Texas Tech University, Lubbock, TX, United States
Dagda, M., Department of Biological Sciences, Texas Tech University, Lubbock, TX, United States
Kanayama, Y., Graduate School of Agricultural Science, Tohoku University, Aoba-ku, Sendai, Japan
Granot, D., Department of Vegetables Research, Institute of Plant Sciences,Agricultural Research Organisation, Volcani Center, PO Box 6, Bet Dagan, Israel
Holaday, A.S., Department of Biological Sciences, Texas Tech University, Lubbock, TX, United States
Facilitators :
From page:
899
To page:
908
(
Total pages:
10
)
Abstract:
Increasing fructokinase (FRK) activity in cotton (Gossypium hirsutum L.) plants may reduce fructose inhibition of sucrose synthase (Sus) and lead to improved fibre yield and quality. Cotton was transformed with a tomato (Solanum lycopersicum L.) fructokinase gene (LeFRK1) under the control of the CMV 35S promoter. In a greenhouse, the LeFRK1 plants had increased fibre and leaf FRK activity over nonexpressing nulls, but not improved fibre length and strength. Compared with the nulls, LeFRK1 plants yielded 13-100% more seed-cotton mass per boll and more bolls per plant, and therefore more seed cotton and fibre yield per plant. The enhanced yield was related to a greater seed number per boll for LeFRK1 plants. Photosynthetic rates were not appreciably different among genotypes. However, more area per leaf and leaf number (in some instances) for LeFRK1 plants than for nulls enhanced the capacity for C gain. Larger leaf areas for LeFRK1 plants were associated with larger stem diameters. Lower sucrose levels in developing leaves of LeFRK1 plants suggest that LeFRK1 overexpression leads to improved in vivo Sus activity in developing leaves and possibly in developing seeds. The improvement in yield for LeFRK1 plants may also be the result of improvements in photosynthate supply as a consequence of greater leaf area. © CSIRO 2015.
Note:
Related Files :
crop improvement
enzyme activity
gene expression
Lycopersicon esculentum
photosynthesis
sucrose
vegetable
עוד תגיות
תוכן קשור
More details
DOI :
10.1071/FP15035
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
25039
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:12
Scientific Publication
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