Efficient direct plant regeneration from immature leaf roll explants of sugarcane (Saccharum officinarum L.) using polyamines and assessment of genetic fidelity by SCoT markers

A rapid and efficient method for in vitro direct plant regeneration from immature leaf roll explants of Saccharum officinarum L. (sugarcane) cv. Co 86032 was developed by the application of exogenous polyamines (PA). The effect of explant source from apical meristems and pre-culture of explants in t...

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Veröffentlicht in:In vitro cellular & developmental biology. Plant 2018-08, Vol.54 (4), p.399-412
Hauptverfasser: Sathish, Dorairaj, Vasudevan, Venkatachalam, Theboral, Jeevaraj, Elayaraja, Dhandapani, Appunu, Chinnaswamy, Siva, Ramamoorthy, Manickavasagam, Markandan
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container_end_page 412
container_issue 4
container_start_page 399
container_title In vitro cellular & developmental biology. Plant
container_volume 54
creator Sathish, Dorairaj
Vasudevan, Venkatachalam
Theboral, Jeevaraj
Elayaraja, Dhandapani
Appunu, Chinnaswamy
Siva, Ramamoorthy
Manickavasagam, Markandan
description A rapid and efficient method for in vitro direct plant regeneration from immature leaf roll explants of Saccharum officinarum L. (sugarcane) cv. Co 86032 was developed by the application of exogenous polyamines (PA). The effect of explant source from apical meristems and pre-culture of explants in the dark on shoot regeneration was studied. Adventitious shoot regeneration occurred on the proximal regions of immature leaf roll explants when pre-incubated in the dark for 2 wk and the regeneration response was decreased from the middle to distal end. A higher number of direct shoots (130 primary shoots explant−1) and multiple shoots (657 secondary shoots explant−1), were obtained with a combination of spermidine (103.27 μM), spermine (49.42 μM), and putrescine (31.04 μM) along with plant growth regulators. Shoot induction was increased up to twofold and multiplication was increased up to threefold in the medium supplemented with PA. Profuse rooting was observed in putrescine (93.12 μM), spermidine (68.84 μM), and spermine (24.71 μM), with mean number of 57 roots. A twofold increase in the number of roots was observed in medium supplemented with PA with respect to control cultures, which facilitated the successful transplantation and acclimatization process of in vitro propagated sugarcane plants. Histology and scanning electron microscopy analyses supported adventitious direct shoot regeneration from immature leaf roll explants. The genetic stability of in vitro regenerated plants was confirmed using start codon targeted polymorphism marker system.
doi_str_mv 10.1007/s11627-018-9910-5
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Plant</jtitle><stitle>In Vitro Cell.Dev.Biol.-Plant</stitle><date>2018-08-01</date><risdate>2018</risdate><volume>54</volume><issue>4</issue><spage>399</spage><epage>412</epage><pages>399-412</pages><issn>1054-5476</issn><eissn>1475-2689</eissn><abstract>A rapid and efficient method for in vitro direct plant regeneration from immature leaf roll explants of Saccharum officinarum L. (sugarcane) cv. Co 86032 was developed by the application of exogenous polyamines (PA). The effect of explant source from apical meristems and pre-culture of explants in the dark on shoot regeneration was studied. Adventitious shoot regeneration occurred on the proximal regions of immature leaf roll explants when pre-incubated in the dark for 2 wk and the regeneration response was decreased from the middle to distal end. A higher number of direct shoots (130 primary shoots explant−1) and multiple shoots (657 secondary shoots explant−1), were obtained with a combination of spermidine (103.27 μM), spermine (49.42 μM), and putrescine (31.04 μM) along with plant growth regulators. Shoot induction was increased up to twofold and multiplication was increased up to threefold in the medium supplemented with PA. Profuse rooting was observed in putrescine (93.12 μM), spermidine (68.84 μM), and spermine (24.71 μM), with mean number of 57 roots. A twofold increase in the number of roots was observed in medium supplemented with PA with respect to control cultures, which facilitated the successful transplantation and acclimatization process of in vitro propagated sugarcane plants. Histology and scanning electron microscopy analyses supported adventitious direct shoot regeneration from immature leaf roll explants. The genetic stability of in vitro regenerated plants was confirmed using start codon targeted polymorphism marker system.</abstract><cop>New York</cop><pub>Springer Science + Business Media, LLC (Springer)</pub><doi>10.1007/s11627-018-9910-5</doi><tpages>14</tpages></addata></record>
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subjects Acclimatization
Agricultural commodities
Biomedical and Life Sciences
Cell Biology
Cell division
Deoxyribonucleic acid
Developmental Biology
DNA
Explants
Growth regulators
Histology
In vitro methods and tests
Leaves
Life Sciences
Meristems
MICROPROPAGATION
Morphogenesis
Plant Breeding/Biotechnology
Plant Genetics and Genomics
Plant growth
Plant Sciences
Plants
Polyamines
Polymorphism
Putrescine
Regeneration
Rooting
Roots
Saccharum officinarum
Scanning electron microscopy
Shoots
Spermidine
Spermine
Sugarcane
Transplantation
title Efficient direct plant regeneration from immature leaf roll explants of sugarcane (Saccharum officinarum L.) using polyamines and assessment of genetic fidelity by SCoT markers
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