Dissecting the role of two cytokinin analogues (INCYDE and PI-55) on in vitro organogenesis, phytohormone accumulation, phytochemical content and antioxidant activity
Copyright © 2015 Elsevier Ireland Ltd. All rights reserved..
There is a continuous search for new chemical entities to expand the collection of suitable compounds to increase the efficiency of micropropagation protocols. Two cytokinin (CK) analogues, 2-chloro-6-(3-methoxyphenyl)aminopurine (INCYDE) and CK antagonist 6-(2-hydroxy-3-methylbenzylamino)purine (PI-55) were used as a tool to elucidate the auxin-CK crosstalk under in vitro conditions in the medicinally important plant, Eucomis autumnalis subspecies autumnalis. These compounds were tested at 0.01, 0.1 and 10 μM alone as well as in combination with benzyladenine (BA) and naphthaleneacetic acid (NAA). The organogenesis, phytohormone content, phytochemical and antioxidant response in 10 week-old-in vitro regenerated E. autumnalis subspecies autumnalis was evaluated. INCYDE generally favoured shoot regeneration while the effect of PI-55 was more evident in root proliferation. Overall, INCYDE promoted the accumulation of higher concentrations and varieties of endogenous CK relative to the PI-55 treatments. In contrast, higher concentration of indole-3-acetic acid and 2-oxindole-3-acetic acid were generally observed in PI-55-supplemented cultures when compared to plantlets derived from INCYDE. Both CK analogues (individually and in-conjunction with exogenously applied PGRs) significantly influenced the phytochemicals and consequently the antioxidant potential of the in vitro regenerants. These results provided insight on how to alleviate root inhibition, a problem which causes considerable loss of several elite species during micropropagation.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2015 |
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| Erschienen: |
2015 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:238 |
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| Enthalten in: |
Plant science : an international journal of experimental plant biology - 238(2015) vom: 26. Sept., Seite 81-94 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Aremu, Adeyemi O [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 12.05.2016 Date Revised 30.09.2020 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.plantsci.2015.05.018 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM251696642 |
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| 100 | 1 | |a Aremu, Adeyemi O |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Dissecting the role of two cytokinin analogues (INCYDE and PI-55) on in vitro organogenesis, phytohormone accumulation, phytochemical content and antioxidant activity |
| 264 | 1 | |c 2015 | |
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| 500 | |a Date Completed 12.05.2016 | ||
| 500 | |a Date Revised 30.09.2020 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2015 Elsevier Ireland Ltd. All rights reserved. | ||
| 520 | |a There is a continuous search for new chemical entities to expand the collection of suitable compounds to increase the efficiency of micropropagation protocols. Two cytokinin (CK) analogues, 2-chloro-6-(3-methoxyphenyl)aminopurine (INCYDE) and CK antagonist 6-(2-hydroxy-3-methylbenzylamino)purine (PI-55) were used as a tool to elucidate the auxin-CK crosstalk under in vitro conditions in the medicinally important plant, Eucomis autumnalis subspecies autumnalis. These compounds were tested at 0.01, 0.1 and 10 μM alone as well as in combination with benzyladenine (BA) and naphthaleneacetic acid (NAA). The organogenesis, phytohormone content, phytochemical and antioxidant response in 10 week-old-in vitro regenerated E. autumnalis subspecies autumnalis was evaluated. INCYDE generally favoured shoot regeneration while the effect of PI-55 was more evident in root proliferation. Overall, INCYDE promoted the accumulation of higher concentrations and varieties of endogenous CK relative to the PI-55 treatments. In contrast, higher concentration of indole-3-acetic acid and 2-oxindole-3-acetic acid were generally observed in PI-55-supplemented cultures when compared to plantlets derived from INCYDE. Both CK analogues (individually and in-conjunction with exogenously applied PGRs) significantly influenced the phytochemicals and consequently the antioxidant potential of the in vitro regenerants. These results provided insight on how to alleviate root inhibition, a problem which causes considerable loss of several elite species during micropropagation | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Antioxidant | |
| 650 | 4 | |a Asparagaceae | |
| 650 | 4 | |a Auxins | |
| 650 | 4 | |a Conservation | |
| 650 | 4 | |a Cytokinin homeostasis | |
| 650 | 4 | |a Rooting | |
| 650 | 7 | |a 2-chloro-6-(3-methoxyphenyl)aminopurine |2 NLM | |
| 650 | 7 | |a Antioxidants |2 NLM | |
| 650 | 7 | |a Cytokinins |2 NLM | |
| 650 | 7 | |a Indoleacetic Acids |2 NLM | |
| 650 | 7 | |a Phytochemicals |2 NLM | |
| 650 | 7 | |a Plant Growth Regulators |2 NLM | |
| 650 | 7 | |a Adenine |2 NLM | |
| 650 | 7 | |a JAC85A2161 |2 NLM | |
| 700 | 1 | |a Stirk, Wendy A |e verfasserin |4 aut | |
| 700 | 1 | |a Masondo, Nqobile A |e verfasserin |4 aut | |
| 700 | 1 | |a Plačková, Lenka |e verfasserin |4 aut | |
| 700 | 1 | |a Novák, Ondřej |e verfasserin |4 aut | |
| 700 | 1 | |a Pěnčík, Aleš |e verfasserin |4 aut | |
| 700 | 1 | |a Zatloukal, Marek |e verfasserin |4 aut | |
| 700 | 1 | |a Nisler, Jaroslav |e verfasserin |4 aut | |
| 700 | 1 | |a Spíchal, Lukáš |e verfasserin |4 aut | |
| 700 | 1 | |a Doležal, Karel |e verfasserin |4 aut | |
| 700 | 1 | |a Finnie, Jeffrey F |e verfasserin |4 aut | |
| 700 | 1 | |a Van Staden, Johannes |e verfasserin |4 aut | |
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