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פותח על ידי קלירמאש פתרונות בע"מ -
Adventitious root primordia formation and development in stem nodes of ‘Georgia jet’ sweetpotato, Ipomoea batatas
Year:
2015
Source of publication :
American Journal of Botany
Authors :
אלטחן, לביאה
;
.
פירון, נורית
;
.
צמח, חניתה
;
.
Volume :
102
Co-Authors:
Ma, J., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet Dagan, Israel, College of Landscape Architecture of Sichuan Agricultural University, Chengdu, Sichuan, China
Aloni, R., Department of Molecular Biology and Ecology of Plants, Tel Aviv University, Tel Aviv, Israel
Villordon, A., LSU AgCenter Sweet Potato Research Station, Chase, LA, United States
Labonte, D., LSU AgCenter School of Plant, Environmental, and Soil Sciences, 137 J.C. Miller Hall, Baton Rouge, LA, United States
Kfir, Y., Savyon Diagnostics, Habosem Street 3, Ashdod, Israel
Zemach, H., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet Dagan, Israel
Schwartz, A., Food and Enviromental Sciences, Hebrew University of Jerusalem, Rehovot, Israel
Althan, L., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet Dagan, Israel
Firon, N., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet Dagan, Israel
Facilitators :
From page:
1040
To page:
1049
(
Total pages:
10
)
Abstract:
PREMISE OF THE STUDY: Yield in sweetpotato is determined by the number of storage roots produced per plant. Storage roots develop from adventitious roots (ARs) present in stem cuttings that serve as propagation material. Data on the origin of sweetpotato ARs and the effect of nodal position on AR establishment and further development are limited. METHODS: We anatomically described root primordium initiation using stem sections and measured number of root primordia formed at different nodal positions using light microscopy and correlated nodal positions with AR number and length 14 d after planting (DAP). KEY RESULTS: Primordia for ARs initiate at the junction of the stem pith ray and the cambium, on both sides of the leaf gap, and they are well developed before emerging from the stem. The number of ARs that develop from isolated stem nodes 14 DAP corresponded to the number of AR primordia detected inside the stem. The total length of established roots at nodes 9-13 from the apex is about 2-fold longer than at nodes 5-8. CONCLUSIONS: Nodal position (age) has a significant effect on the developmental status and number of root primordia inside the stem, determining the number and length of ARs that have developed by 14 DAP. Adventitious roots originating from nodes 9-13 possess similar AR systems and develop better than those originating from younger nodes 3-8. The mechanism regulating AR initiation in nodes is discussed. This system can serve for studying the effect of environmental conditions on AR initiation, development, and capacity to form storage roots. © 2015 Botanical Society of America.
Note:
Related Files :
Developmental Biology
Growth, Development and Aging
Ipomoea batatas
plant stem
root vegetable
עוד תגיות
תוכן קשור
More details
DOI :
10.3732/ajb.1400505
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
25703
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:17
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Scientific Publication
Adventitious root primordia formation and development in stem nodes of ‘Georgia jet’ sweetpotato, Ipomoea batatas
102
Ma, J., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet Dagan, Israel, College of Landscape Architecture of Sichuan Agricultural University, Chengdu, Sichuan, China
Aloni, R., Department of Molecular Biology and Ecology of Plants, Tel Aviv University, Tel Aviv, Israel
Villordon, A., LSU AgCenter Sweet Potato Research Station, Chase, LA, United States
Labonte, D., LSU AgCenter School of Plant, Environmental, and Soil Sciences, 137 J.C. Miller Hall, Baton Rouge, LA, United States
Kfir, Y., Savyon Diagnostics, Habosem Street 3, Ashdod, Israel
Zemach, H., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet Dagan, Israel
Schwartz, A., Food and Enviromental Sciences, Hebrew University of Jerusalem, Rehovot, Israel
Althan, L., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet Dagan, Israel
Firon, N., Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, Bet Dagan, Israel
Adventitious root primordia formation and development in stem nodes of ‘Georgia jet’ sweetpotato, Ipomoea batatas
PREMISE OF THE STUDY: Yield in sweetpotato is determined by the number of storage roots produced per plant. Storage roots develop from adventitious roots (ARs) present in stem cuttings that serve as propagation material. Data on the origin of sweetpotato ARs and the effect of nodal position on AR establishment and further development are limited. METHODS: We anatomically described root primordium initiation using stem sections and measured number of root primordia formed at different nodal positions using light microscopy and correlated nodal positions with AR number and length 14 d after planting (DAP). KEY RESULTS: Primordia for ARs initiate at the junction of the stem pith ray and the cambium, on both sides of the leaf gap, and they are well developed before emerging from the stem. The number of ARs that develop from isolated stem nodes 14 DAP corresponded to the number of AR primordia detected inside the stem. The total length of established roots at nodes 9-13 from the apex is about 2-fold longer than at nodes 5-8. CONCLUSIONS: Nodal position (age) has a significant effect on the developmental status and number of root primordia inside the stem, determining the number and length of ARs that have developed by 14 DAP. Adventitious roots originating from nodes 9-13 possess similar AR systems and develop better than those originating from younger nodes 3-8. The mechanism regulating AR initiation in nodes is discussed. This system can serve for studying the effect of environmental conditions on AR initiation, development, and capacity to form storage roots. © 2015 Botanical Society of America.
Scientific Publication
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