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Wang MR, Bao JH, Ma XY, Yan ZH, Cui ZH, Zhu LY, Zhang D, Wang QC. Vitrification cryo-foil method for shoot tip cryopreservation and virus eradication in apple. Cryobiology 2024; 117:104957. [PMID: 39179195 DOI: 10.1016/j.cryobiol.2024.104957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2024] [Revised: 08/19/2024] [Accepted: 08/20/2024] [Indexed: 08/26/2024]
Abstract
Establishment of a new method for improved shoot tip cryopreservation is crucial to facilitate the long-term preservation of plant germplasm as well as the use of cryotherapy for pathogen eradication. The present study reported a vitrification (V) cryo-foil method for shoot tip cryopreservation and virus eradication in apple. Shoot tip regrowth levels after cryopreservation were comparable among V cryo-foil (53 %), V cryo-plate (46 %) and conventional droplet vitrification (Dr-vi, 48 %). The V cryo-foil is more efficient to perform than Dr-vi as more shoot tips can be cryopreserved by one person. In the histological study applying an image-overlaying strategy, shoot tips cryopreserved by V cryo-foil showed a higher survival chance in the youngest leaf primordia than in the apical dome. When V cryo-foil was tested for virus eradication, fifty-five percent (55 %) of cryo-derived shoots were free of the apple stem pitting virus (ASPV), while none and less than 10 % were free of the apple stem grooving virus (ASGV) and the apple chlorotic leaf spot virus (ACLSV), respectively. Thus, these two viruses were efficiently preserved by V cryo-foil cryopreservation. Noticeably, although the shoot regrowth level was reduced to 27 %, a higher frequency (81 %) of ASPV eradication was achieved when a reduced duration of cryoprotectant exposure was applied in V cryo-foil, supporting the use of insufficient cryoprotection for improved virus eradication.
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Affiliation(s)
- Min-Rui Wang
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China; Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, 571737, Hainan, China.
| | - Jun-Hua Bao
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Xiao-Yan Ma
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Zi-Han Yan
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Zhen-Hua Cui
- College of Horticulture, Qingdao Agricultural University, Qingdao, 266109, Shandong, China
| | - Li-Ying Zhu
- Langfang Academy of Agriculture and Forestry Sciences, Langfang, 065000, Hebei, China
| | - Dong Zhang
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Qiao-Chun Wang
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
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Jenderek MM, Yeater KM, Thomas AL. Germplasm of Ozark chinquapin (Castanea ozarkensis Ashe) can be cryopreserved by dormant winter buds. Cryobiology 2024; 114:104833. [PMID: 38072181 DOI: 10.1016/j.cryobiol.2023.104833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/28/2023] [Accepted: 11/29/2023] [Indexed: 12/21/2023]
Abstract
Ozark chinquapin (Castanea ozarkensis Ashe) is a forest tree, endemic to the Ozark Mountain region in Eastern United States. Its nutritious nuts were consumed by Native Americans, European settlers, livestock, and wild animals and its wood was an important rot-resistant construction material. Once a significant tree in regional forest communities, the species was nearly eradicated by a chestnut blight caused by Cryphonectria parasitca (Murill) Barr fungus. Some individuals have survived as sprouts from adventitious root buds, but they rarely reach reproductive maturity. While some in situ restoration efforts are underway, the development of a viable ex situ germplasm preservation method is critical to the conservation of this important food-bearing species. Our experiment aimed to develop a cryopreservation method for C. ozarkensis dormant winter buds subjected to eight experimental treatments before desiccation, slow cooling, and storage in liquid nitrogen vapor. The highest post cryogenic viability was 91.2 % for dormant buds pretreated with 0.3 M sucrose for 16 h followed by 0.75 M sucrose for 3 h; this treatment is suggested for cryopreservation of dormant winter buds of Ozark chinquapin germplasm.
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Affiliation(s)
- Maria M Jenderek
- USDA-ARS, National Laboratory for Genetic Resources Preservation, 1111 S. Mason Street, Fort Collins, CO, 80521, USA.
| | - Kathleen M Yeater
- USDA-ARS, Plains Area, Office of the Area Director, 2150 Centre Ave, Fort Collins, CO, 80526, USA
| | - Andrew L Thomas
- University of Missouri, Division of Plant Science and Technology, Southwest Research, Extension and Education Center, 14548 Highway H, Mt. Vernon, MO, 65712, USA
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Vujović T, Anđelić T, Vasilijević B, Jevremović D, Engelmann F. Cryopreservation of Indigenous Plums and Monitoring of Multiplication and Rooting Capacity of Shoots Obtained from Cryopreserved Specimens. PLANTS (BASEL, SWITZERLAND) 2023; 12:3108. [PMID: 37687355 PMCID: PMC10490254 DOI: 10.3390/plants12173108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/18/2023] [Accepted: 08/22/2023] [Indexed: 09/10/2023]
Abstract
The objective of this study is to assess the suitability of vitrification cryo-plate (V cryo-plate) and dehydration cryo-plate (D cryo-plate) methods for the long-term conservation of eight autochthonous Prunus domestica L. genotypes originating from the Balkan Peninsula region. In vitro shoot tips were briefly pre-cultured for 1 day at 23 °C in the dark on a medium containing 0.3 M sucrose and then embedded in calcium alginate gel within the wells of the aluminum cryo-plates. In the V cryo-plate protocol, dehydration was carried out at room temperature using the following vitrification solutions: original plant vitrification solution 2 (PVS2) and 90% PVS2 solution (for 20 and 40 min) and plant vitrification solution 3 (PVS3) (for 60 and 80 min). In the D cryo-plate protocol, desiccation was performed for 2, 2.5, or 3 h over silica gel at 23 °C. The effect of different treatments was evaluated by monitoring the regrowth of both non-frozen and cryo-preserved explants. After cryo-preservation, five genotypes achieved regrowth rates over 40% in at least one of the applied protocols, while two genotypes showed regrowth rates of around 10%. A significant improvement in regrowth success for all genotypes using both cryo-plate methods was achieved by pre-culturing shoot tips for 7 days on a medium containing 0.5 M sucrose in complete darkness at 4 °C. Shoots regenerated from cryo-preserved explants were further monitored in vitro. By the third subculture, they had not only regained but had even exceeded the multiplication capacity (index of multiplication, length of axial, and lateral shoots) of shoots regenerated from dissection controls. Following multiplication, the cryo-preserved shoots were successfully rooted and rooting ability was assessed by monitoring the percentage of rooting, number and length of roots, and height of rooted plantlets.
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Affiliation(s)
- Tatjana Vujović
- Fruit Research Institute, Kralja Petra I No. 9, 32000 Čačak, Serbia; (T.A.); (B.V.); (D.J.)
| | - Tatjana Anđelić
- Fruit Research Institute, Kralja Petra I No. 9, 32000 Čačak, Serbia; (T.A.); (B.V.); (D.J.)
| | - Bojana Vasilijević
- Fruit Research Institute, Kralja Petra I No. 9, 32000 Čačak, Serbia; (T.A.); (B.V.); (D.J.)
| | - Darko Jevremović
- Fruit Research Institute, Kralja Petra I No. 9, 32000 Čačak, Serbia; (T.A.); (B.V.); (D.J.)
| | - Florent Engelmann
- Institute of Research for Development, 911 Av. Agropolis, P.O. Box 64501, CEDEX 5, 34394 Montpellier, France;
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Kreckel HD, Samuels FMD, Bonnart R, Volk GM, Stich DG, Levinger NE. Tracking Permeation of Dimethyl Sulfoxide (DMSO) in Mentha × piperita Shoot Tips Using Coherent Raman Microscopy. PLANTS (BASEL, SWITZERLAND) 2023; 12:2247. [PMID: 37375873 DOI: 10.3390/plants12122247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 06/01/2023] [Accepted: 06/01/2023] [Indexed: 06/29/2023]
Abstract
Cryopreservation has emerged as a low-maintenance, cost-effective solution for the long-term preservation of vegetatively propagated crops. Shoot tip cryopreservation often makes use of vitrification methods that employ highly concentrated mixtures of cryoprotecting agents; however, little is understood as to how these cryoprotecting agents protect cells and tissues from freezing. In this study, we use coherent anti-Stokes Raman scattering microscopy to directly visualize where dimethyl sulfoxide (DMSO) localizes within Mentha × piperita shoot tips. We find that DMSO fully penetrates the shoot tip tissue within 10 min of exposure. Variations in signal intensities across images suggest that DMSO may interact with cellular components, leading to its accumulation in specific regions.
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Affiliation(s)
- Heidi D Kreckel
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
| | - Fionna M D Samuels
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
| | - Remi Bonnart
- USDA ARS National Laboratory for Genetic Resources Preservation, Fort Collins, CO 80521, USA
| | - Gayle M Volk
- USDA ARS National Laboratory for Genetic Resources Preservation, Fort Collins, CO 80521, USA
| | - Dominik G Stich
- Advanced Light Microscopy Center, University of Colorado, Denver, CO 80045, USA
| | - Nancy E Levinger
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
- Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, CO 80523, USA
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Nadarajan J, Esfandiari A, Mathew L, Divinagracia J, Wiedow C, Morgan E. Development, Management and Utilization of a Kiwifruit ( Actinidia spp.) In Vitro Collection: A New Zealand Perspective. PLANTS (BASEL, SWITZERLAND) 2023; 12:2009. [PMID: 37653926 PMCID: PMC10222645 DOI: 10.3390/plants12102009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 05/09/2023] [Accepted: 05/11/2023] [Indexed: 09/02/2023]
Abstract
The New Zealand Institute for Plant and Food Research Limited (PFR) supports a large kiwifruit breeding program that includes more than twenty Actinidia species. Almost all the kiwifruit accessions are held as field collections across a range of locations, though not all plants are at multiple locations. An in vitro collection of kiwifruit in New Zealand was established upon the arrival of Pseudomonas syringae pv. Actinadiae-biovar 3 in 2010. The value of an in vitro collection has been emphasized by restrictions on importation of new plants into New Zealand and increasing awareness of the array of biotic and abiotic threats to field collections. The PFR in vitro collection currently holds about 450 genotypes from various species, mostly A. chinensis var. chinensis and A. chinensis var. deliciosa. These collections and the in vitro facilities are used for germplasm conservation, identification of disease-free plants, reference collections and making plants available to users. Management of such a diverse collection requires appropriate protocols, excellent documentation, training, sample tracking and databasing and true-to-type testing, as well as specialized facilities and resources. This review also discusses the New Zealand biosecurity and compliance regime governing kiwifruit plant movement, and how protocols employed by the facility aid the movement of pathogen-free plants within and from New Zealand.
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Affiliation(s)
- Jayanthi Nadarajan
- Food Industry Science Centre, The New Zealand Institute for Plant and Food Research Limited, Palmerston North 4410, New Zealand
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Grapevine Shoot Tip Cryopreservation and Cryotherapy: Secure Storage of Disease-Free Plants. PLANTS 2021; 10:plants10102190. [PMID: 34685999 PMCID: PMC8541583 DOI: 10.3390/plants10102190] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/08/2021] [Accepted: 10/11/2021] [Indexed: 11/27/2022]
Abstract
Grapevine (Vitis spp.) is one of the most economically important temperate fruit crops. Grapevine breeding programs require access to high-quality Vitis cultivars and wild species, which may be maintained within genebanks. Shoot tip cryopreservation is a valuable technique for the safe, long-term conservation of Vitis genetic resources that complements traditional field and in vitro germplasm collections. Vitis is highly susceptible to virus infections. Virus-free plants are required as propagation material for clonally propagated germplasm, and also for the global exchange of grapevine genetic resources. Shoot tip cryotherapy, a method based on cryopreservation, has proven to be effective in eradicating viruses from infected plants, including grapevine. This comprehensive review outlines/documents the advances in Vitis shoot tip cryopreservation and cryotherapy that have resulted in healthy plants with high regrowth levels across diverse Vitis species.
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O’Brien C, Hiti-Bandaralage J, Folgado R, Hayward A, Lahmeyer S, Folsom J, Mitter N. Cryopreservation of Woody Crops: The Avocado Case. PLANTS (BASEL, SWITZERLAND) 2021; 10:934. [PMID: 34067138 PMCID: PMC8151510 DOI: 10.3390/plants10050934] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 04/29/2021] [Accepted: 04/29/2021] [Indexed: 06/12/2023]
Abstract
Recent development and implementation of crop cryopreservation protocols has increased the capacity to maintain recalcitrant seeded germplasm collections via cryopreserved in vitro material. To preserve the greatest possible plant genetic resources globally for future food security and breeding programs, it is essential to integrate in situ and ex situ conservation methods into a cohesive conservation plan. In vitro storage using tissue culture and cryopreservation techniques offers promising complementary tools that can be used to promote this approach. These techniques can be employed for crops difficult or impossible to maintain in seed banks for long-term conservation. This includes woody perennial plants, recalcitrant seed crops or crops with no seeds at all and vegetatively or clonally propagated crops where seeds are not true-to-type. Many of the world's most important crops for food, nutrition and livelihoods, are vegetatively propagated or have recalcitrant seeds. This review will look at ex situ conservation, namely field repositories and in vitro storage for some of these economically important crops, focusing on conservation strategies for avocado. To date, cultivar-specific multiplication protocols have been established for maintaining multiple avocado cultivars in tissue culture. Cryopreservation of avocado somatic embryos and somatic embryogenesis have been successful. In addition, a shoot-tip cryopreservation protocol has been developed for cryo-storage and regeneration of true-to-type clonal avocado plants.
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Affiliation(s)
- Chris O’Brien
- Centre for Horticultural Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD 4072, Australia; (J.H.-B.); (A.H.); (N.M.)
| | - Jayeni Hiti-Bandaralage
- Centre for Horticultural Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD 4072, Australia; (J.H.-B.); (A.H.); (N.M.)
| | - Raquel Folgado
- The Huntington Library, Art Museum, and Botanical Gardens, 1151 Oxford Road, San Marino, CA 91108, USA; (R.F.); (S.L.); (J.F.)
| | - Alice Hayward
- Centre for Horticultural Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD 4072, Australia; (J.H.-B.); (A.H.); (N.M.)
| | - Sean Lahmeyer
- The Huntington Library, Art Museum, and Botanical Gardens, 1151 Oxford Road, San Marino, CA 91108, USA; (R.F.); (S.L.); (J.F.)
| | - Jim Folsom
- The Huntington Library, Art Museum, and Botanical Gardens, 1151 Oxford Road, San Marino, CA 91108, USA; (R.F.); (S.L.); (J.F.)
| | - Neena Mitter
- Centre for Horticultural Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD 4072, Australia; (J.H.-B.); (A.H.); (N.M.)
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Two Advanced Cryogenic Procedures for Improving Stevia rebaudiana (Bertoni) Cryopreservation. PLANTS 2021; 10:plants10020277. [PMID: 33572614 PMCID: PMC7911944 DOI: 10.3390/plants10020277] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/25/2021] [Accepted: 01/26/2021] [Indexed: 12/02/2022]
Abstract
Cryopreservation is a useful tool for the long-term storage of plant genetic resources, and different cryogenic procedures have recently been developed. The present study focused on the use of the Droplet-vitrification (DV) and V cryo-plate protocol for the cryopreservation of Stevia rebaudiana in vitro-derived apical shoot tips and axillary shoot tips. A preliminary test showed that 90 and 120 min PVS2 (Plant Vitrification Solution 2) treatment significantly reduced the regrowth of the explants before immersion in liquid nitrogen (LN). For both procedures tested, the best osmoprotective condition for obtaining a higher regrowth of cryopreserved explants occurred when explants were PVS2 treated for 60 min. After direct immersion in LN, thawing and plating, the highest regrowth recorded was 80% with DV and 93% with V cryo-plate. Moreover, shoot tips proved to be a more suitable material for Stevia cryopreservation. A satisfactory vegetative regrowth was observed in the subcultures following cryopreservation by DV and V cryo-plate cryogenic procedures.
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da Silva Cordeiro L, Collin M, Callado CH, Simões-Gurgel C, Albarello N, Engelmann F. Long-term conservation of Tarenaya rosea (Cleomaceae) root cultures: histological and histochemical analyses during cryopreservation using the encapsulation-vitrification technique. PROTOPLASMA 2020; 257:1021-1033. [PMID: 32040626 DOI: 10.1007/s00709-020-01486-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 01/28/2020] [Indexed: 06/10/2023]
Abstract
Adventitious root cultures of Tarenaya rosea were successfully cryopreserved using the encapsulation-vitrification technique. Histological analysis revealed useful information on the successive steps of cryopreservation. Coupled with complementary histochemical approaches, these studies provided cellular and tissue descriptions of T. rosea root cultures during cryopreservation and contributed to an understanding of cellular stress responses, as well as characterization of the anatomical pattern of root regeneration. The effects of exposure duration to PVS3 solution (0-120 min), unloading treatment (direct and gradual), and recovery medium (liquid and solid) on recovery of cryopreserved roots were investigated. The highest recovery (91%) after cooling in liquid nitrogen (LN) was reached with PVS3 treatment for 90 min, gradual rehydration in unloading solution, and recovery on solid MS medium. The cryopreserved roots showed high multiplication capacity, which was maintained for up to four subcultures. The effect of cryopreservation on root structure was investigated by histological and histochemical studies. Plasmolysis intensified during exposure to loading and PVS3 solutions, but decreased after unloading treatment. The proportion of intercellular spaces increased progressively throughout the cryopreservation protocol, culminating in root cortex disruption. Histochemical analyses revealed polysaccharides, proteins, and both lipidic and pectic substances in intercellular spaces. The vascular cylinder remained intact, ensuring the formation of new roots from the pericycle, showing that proliferative capacity of cryopreserved roots had not diminished.
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Affiliation(s)
- Lívia da Silva Cordeiro
- Núcleo de Biotecnologia Vegetal (NBV), Instituto de Biologia Roberto Alcantara Gomes (IBRAG), Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, PHLC, sala 509, Rio de Janeiro, RJ, 20550-013, Brazil.
| | - Myriam Collin
- Institut de Recherche pour le Développement (IRD), 911 Avenue Agropolis, BP 64501, 34394, Montpellier, France
| | - Cátia Henriques Callado
- Laboratório de Anatomia Vegetal (LAV), Departamento de Biologia Vegetal, Instituto de Biologia Roberto Alcantara Gomes (IBRAG), Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, PHLC, sala 225, Rio de Janeiro, RJ, 20550-013, Brazil
| | - Claudia Simões-Gurgel
- Núcleo de Biotecnologia Vegetal (NBV), Instituto de Biologia Roberto Alcantara Gomes (IBRAG), Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, PHLC, sala 509, Rio de Janeiro, RJ, 20550-013, Brazil
| | - Norma Albarello
- Núcleo de Biotecnologia Vegetal (NBV), Instituto de Biologia Roberto Alcantara Gomes (IBRAG), Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, PHLC, sala 509, Rio de Janeiro, RJ, 20550-013, Brazil
| | - Florent Engelmann
- Institut de Recherche pour le Développement (IRD), 08 BP 841, Cotonou, Benin
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Khor SP, Yeow LC, Poobathy R, Zakaria R, Chew BL, Subramaniam S. Droplet-vitrification of Aranda Broga Blue orchid: Role of ascorbic acid on the antioxidant system and genetic fidelity assessments via RAPD and SCoT markers. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2020; 26:e00448. [PMID: 32368510 PMCID: PMC7184254 DOI: 10.1016/j.btre.2020.e00448] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 03/22/2020] [Accepted: 03/28/2020] [Indexed: 11/07/2022]
Abstract
A droplet-vitrification cryopreservation protocol has been successfully developed for Aranda Broga Blue orchid hybrid using protocorm-like bodies (PLBs). However, maximum growth regeneration percentage was recorded at 5% only based on previous report. Thus, to improve growth recovery of cryopreserved PLBs, cryopreservation stages were supplemented with ascorbic acid, tested at 50, 100 and 150 mg/L. However, results demonstrated that exogenous ascorbic acid was not favorable in regeneration of cryopreserved explants (maximum value of 1.67 % with 50 mg/L ascorbic acid supplementation). Total soluble protein and various antioxidant enzyme activities such as catalase (CAT), superoxide dismutase (SOD) and ascorbate peroxidase (APX) were evaluated after each cryopreservation stages in conjunction with the application of exogenous ascorbic acid. Addition of antioxidant must be carefully evaluated and its application may not guarantee successful growth recovery. RAPD and SCoT molecular analysis confirmed the genetic stability of regenerated cryopreserved PLBs as no polymorphism was detected compared to control PLBs culture.
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Affiliation(s)
- Soo Ping Khor
- School of Biological Sciences, Universiti Sains Malaysia (USM), 11800, Gelugor, Penang, Malaysia
| | - Lit Chow Yeow
- School of Biological Sciences, Universiti Sains Malaysia (USM), 11800, Gelugor, Penang, Malaysia
| | - Ranjetta Poobathy
- School of Biological Sciences, Universiti Sains Malaysia (USM), 11800, Gelugor, Penang, Malaysia
- School of Biological Sciences, Quest International University, 30250, Ipoh, Perak, Malaysia
| | - Rahmad Zakaria
- School of Biological Sciences, Universiti Sains Malaysia (USM), 11800, Gelugor, Penang, Malaysia
| | - Bee Lynn Chew
- School of Biological Sciences, Universiti Sains Malaysia (USM), 11800, Gelugor, Penang, Malaysia
| | - Sreeramanan Subramaniam
- School of Biological Sciences, Universiti Sains Malaysia (USM), 11800, Gelugor, Penang, Malaysia
- Centre for Chemical Biology, Universiti Sains Malaysia, Bayan Lepas, Penang, Malaysia
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Zhang XC, Bao WW, Zhang AL, Pathirana R, Wang QC, Liu ZD. Cryopreservation of shoot tips, evaluations of vegetative growth, and assessments of genetic and epigenetic changes in cryo-derived plants of Actinidia spp. Cryobiology 2020; 94:18-25. [PMID: 32413358 DOI: 10.1016/j.cryobiol.2020.05.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 05/06/2020] [Accepted: 05/06/2020] [Indexed: 01/06/2023]
Abstract
A droplet-vitrification protocol was described for cryopreservation of shoot tips of kiwifruit 'Yuxiang' (Actinidia chinensis var. deliciosa). No significant differences were found in root formation and shoot growth between the in vitro-derived shoots (the control) and cryo-derived ones when cultured in vitro. No significant differences were detected in survival and vegetative growth between the in vitro-derived plants (the control) and cryo-derived ones after re-establishment in greenhouse conditions. Inter-simple sequence repeat (ISSR) and amplified fragment length polymorphism (AFLP) did not detect any polymorphic bands in the cryo-derived shoots when cultured in vitro and the cryo-derived plants after re-establishment in greenhouse conditions. These data indicate rooting ability, vegetative growth and genetic stability are maintained in the cryo-derived kiwifruit plants recovered from the droplet-vitrification cryopreservation. Methylation sensitive amplification polymorphism (MSAP) detected 12.8% and 1.6% DNA methylation in the cryo-derived shoots when cultured in vitro and the cryo-derived plants after re-established in greenhouse conditions, respectively. This droplet-vitrification was applied to five cultivars and three rootstocks belonging to A. chinensis var. deliciosa, A. chinensis var. chinensis, A. macrosperma, A. polygama and A. valvata. The highest (68.3%) and lowest (22.5%) shoot regrowth were obtained in A. macrosperma and A. chinensis var. chinensis 'Jinmi', respectively, with an average of 46.4% shoot regrowth obtained across the eight genotypes. The droplet-vitrification protocol described here can be considered the most applicable cryopreservation method so far reported for the genus Actinidia. Results reported here provide theoretical and technical supports for setting up cryo-banks of genetic resources of Actinidia spp.
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Affiliation(s)
- Xiao-Chen Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China
| | - Wen-Wu Bao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China
| | - A-Ling Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China
| | - Ranjith Pathirana
- Plant & Food Research Australia Pty Ltd, Waite Institute, SA, 5064, Australia
| | - Qiao-Chun Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China.
| | - Zhan-De Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China.
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Ibáñez MA, Alvarez-Mari A, Rodríguez-Sanz H, Kremer C, González-Benito ME, Martín C. Genetic and epigenetic stability of recovered mint apices after several steps of a cryopreservation protocol by encapsulation-dehydration. A new approach for epigenetic analysis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2019; 143:299-307. [PMID: 31539759 DOI: 10.1016/j.plaphy.2019.08.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 07/24/2019] [Accepted: 08/29/2019] [Indexed: 06/10/2023]
Abstract
The genetic and epigenetic stability (analysis of DNA methylation using MSAP markers) of mint (Mentha x piperita L.) apices was studied after each step of a cryopreservation protocol, by encapsulation-dehydration. The effect of the addition of an antioxidant (ascorbic acid) during one of the protocol steps was also evaluated. Eight-week old in vitro recovered shoots from apices after each step of the protocol were genetically stable when compared to control in vitro shoots, using RAPD and AFLP markers. The addition of ascorbic acid in the medium with the highest sucrose concentration did not improve recovery and did not have any effect on stability. Apices sampled immediately after each step showed increased epigenetic differences as the protocol advanced, compared to in vitro control apices, in particular related to de novo methylation events. However, after one-day in vitro recovery, methylation status was similar to control apices. To improve the quality of methylation data interpretation, a simple and fast method for MSAP markers analysis, based on R programming, has been developed which allows the statistical comparison of treatments to control samples and its graphical representation.
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Affiliation(s)
- Miguel Angel Ibáñez
- Departamento de Economía Agraria, Estadística y Gestión de Empresas, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Av. Puerta de Hierro, nº 2 - 4, 28040, Madrid, Spain.
| | - Ana Alvarez-Mari
- Departamento de Economía Agraria, Estadística y Gestión de Empresas, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Av. Puerta de Hierro, nº 2 - 4, 28040, Madrid, Spain.
| | - Héctor Rodríguez-Sanz
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Av. Puerta de Hierro, nº 2 - 4, 28040, Madrid, Spain.
| | - Carolina Kremer
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Av. Puerta de Hierro, nº 2 - 4, 28040, Madrid, Spain.
| | - María Elena González-Benito
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Av. Puerta de Hierro, nº 2 - 4, 28040, Madrid, Spain.
| | - Carmen Martín
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Av. Puerta de Hierro, nº 2 - 4, 28040, Madrid, Spain.
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