Tissue culture tools for selenium hyperaccumulator Neptunia amplexicaulis for development in phytoextraction

Abstract Neptunia amplexicaulis is an herbaceous legume endemic to the Richmond area in central Queensland, Australia and is one of the strongest known Selenium hyperaccumulators on earth, showing significant potential to be utilised in Se phytoextraction applications. Here a protocol was establishe...

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Main Authors: Billy O’Donohue, Jayeni Hiti-Bandaralage, Madeleine Gleeson, Chris O’Brien, Maggie-Anne Harvey, Antony van der Ent, Katherine Pinto Irish, Neena Mitter, Alice Hayward
Format: Article
Language:English
Published: SpringerOpen 2022-08-01
Series:Natural Products and Bioprospecting
Subjects:
Online Access:https://doi.org/10.1007/s13659-022-00351-2
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author Billy O’Donohue
Jayeni Hiti-Bandaralage
Madeleine Gleeson
Chris O’Brien
Maggie-Anne Harvey
Antony van der Ent
Katherine Pinto Irish
Neena Mitter
Alice Hayward
author_facet Billy O’Donohue
Jayeni Hiti-Bandaralage
Madeleine Gleeson
Chris O’Brien
Maggie-Anne Harvey
Antony van der Ent
Katherine Pinto Irish
Neena Mitter
Alice Hayward
author_sort Billy O’Donohue
collection DOAJ
description Abstract Neptunia amplexicaulis is an herbaceous legume endemic to the Richmond area in central Queensland, Australia and is one of the strongest known Selenium hyperaccumulators on earth, showing significant potential to be utilised in Se phytoextraction applications. Here a protocol was established for in vitro micropropagation of Se hyperaccumulator N. amplexicaulis using nodal segments from in vitro-germinated seedlings. Shoot multiplication was achieved on Murashige and Skoog (MS) basal media supplemented with various concentrations of 6-Benzylaminopurine (BA) (1.0, 2.0, 3.0 mg L−1) alone or in combination with low levels of Naphthaleneacetic acid (NAA) (0.1, 0.2, 0.3 mg L−1), with 2.0 mg L−1 BA + 0.2 mg L−1 NAA found to be most effective. Elongated shoots were rooted in vitro using NAA, with highest root induction rate of 30% observed at 0.2 mg L−1 NAA. About 95% of the in vitro rooted shoots survived acclimatization. Clonally propagated plantlets were dosed with selenate/selenite solution and assessed for Se tissue concentrations using Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES) and found to retain their ability to hyperaccumulate. The protocol developed for this study has potential to be optimised for generating clonal plants of N. amplexicaulis for use in research and phytoextraction industry applications.
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spelling doaj.art-bf10ee748ec34b739537d795bfc17f652022-12-22T02:32:59ZengSpringerOpenNatural Products and Bioprospecting2192-21952192-22092022-08-011211910.1007/s13659-022-00351-2Tissue culture tools for selenium hyperaccumulator Neptunia amplexicaulis for development in phytoextractionBilly O’Donohue0Jayeni Hiti-Bandaralage1Madeleine Gleeson2Chris O’Brien3Maggie-Anne Harvey4Antony van der Ent5Katherine Pinto Irish6Neena Mitter7Alice Hayward8Centre for Horticultural Science, Queensland Alliance for Agriculture and Food Innovation, The University of QueenslandCentre for Horticultural Science, Queensland Alliance for Agriculture and Food Innovation, The University of QueenslandCentre for Horticultural Science, Queensland Alliance for Agriculture and Food Innovation, The University of QueenslandCentre for Horticultural Science, Queensland Alliance for Agriculture and Food Innovation, The University of QueenslandCentre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of QueenslandCentre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of QueenslandCentre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of QueenslandCentre for Horticultural Science, Queensland Alliance for Agriculture and Food Innovation, The University of QueenslandCentre for Horticultural Science, Queensland Alliance for Agriculture and Food Innovation, The University of QueenslandAbstract Neptunia amplexicaulis is an herbaceous legume endemic to the Richmond area in central Queensland, Australia and is one of the strongest known Selenium hyperaccumulators on earth, showing significant potential to be utilised in Se phytoextraction applications. Here a protocol was established for in vitro micropropagation of Se hyperaccumulator N. amplexicaulis using nodal segments from in vitro-germinated seedlings. Shoot multiplication was achieved on Murashige and Skoog (MS) basal media supplemented with various concentrations of 6-Benzylaminopurine (BA) (1.0, 2.0, 3.0 mg L−1) alone or in combination with low levels of Naphthaleneacetic acid (NAA) (0.1, 0.2, 0.3 mg L−1), with 2.0 mg L−1 BA + 0.2 mg L−1 NAA found to be most effective. Elongated shoots were rooted in vitro using NAA, with highest root induction rate of 30% observed at 0.2 mg L−1 NAA. About 95% of the in vitro rooted shoots survived acclimatization. Clonally propagated plantlets were dosed with selenate/selenite solution and assessed for Se tissue concentrations using Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES) and found to retain their ability to hyperaccumulate. The protocol developed for this study has potential to be optimised for generating clonal plants of N. amplexicaulis for use in research and phytoextraction industry applications.https://doi.org/10.1007/s13659-022-00351-2MicropropagationHyperaccumulationPhytoextractionSeleniumTissue cultureNeptunia amplexicaulis
spellingShingle Billy O’Donohue
Jayeni Hiti-Bandaralage
Madeleine Gleeson
Chris O’Brien
Maggie-Anne Harvey
Antony van der Ent
Katherine Pinto Irish
Neena Mitter
Alice Hayward
Tissue culture tools for selenium hyperaccumulator Neptunia amplexicaulis for development in phytoextraction
Natural Products and Bioprospecting
Micropropagation
Hyperaccumulation
Phytoextraction
Selenium
Tissue culture
Neptunia amplexicaulis
title Tissue culture tools for selenium hyperaccumulator Neptunia amplexicaulis for development in phytoextraction
title_full Tissue culture tools for selenium hyperaccumulator Neptunia amplexicaulis for development in phytoextraction
title_fullStr Tissue culture tools for selenium hyperaccumulator Neptunia amplexicaulis for development in phytoextraction
title_full_unstemmed Tissue culture tools for selenium hyperaccumulator Neptunia amplexicaulis for development in phytoextraction
title_short Tissue culture tools for selenium hyperaccumulator Neptunia amplexicaulis for development in phytoextraction
title_sort tissue culture tools for selenium hyperaccumulator neptunia amplexicaulis for development in phytoextraction
topic Micropropagation
Hyperaccumulation
Phytoextraction
Selenium
Tissue culture
Neptunia amplexicaulis
url https://doi.org/10.1007/s13659-022-00351-2
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