Összesen 3 találat.


001-es BibID:BIBFORM008901
Első szerző:Magyarné Tábori Katalin (kertészmérnök)
Cím:The role of cytokinins in shoot organogenesis in apple / Katalin Magyar-Tábori, Judit Dobránszki, Jaime A. Teixeira da Silva, Sean M. Bulley, Ildikó Hudák
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Plant Cell, Tissue and Organ Culture. - 101 : 3 (2010), p. 251-267. -
További szerzők:Teixeira da Silva, Jaime A. Bulley, Sean M. Hudák Ildikó (1978-) (biológia környezettan tanár) Dobránszki Judit (1967-) (biológus)
Internet cím:DOI
elektronikus változat


001-es BibID:BIBFORM087796
Első szerző:Teixeira da Silva, Jaime A.
Cím:Shoot tip necrosis of in vitro plant cultures: a reappraisal of possible causes and solutions / Jaime A. Teixeira da Silva, Esmaeil Nezami-Alanagh, María E. Barreal, Mafatlal M. Kher, Adhityo Wicaksono, Andrea Gulyás, Norbert Hidvégi, Katalin Magyar-Tábori, Nóra Mendler-Drienyovszki, László Márton, Mariana Landín, Pedro Pablo Gallego, John A. Driver, Judit Dobránszki
ISSN:0032-0935 1432-2048
Megjegyzések:Shoot tip necrosis is a physiological condition and disorder that can arise in plantlets or shoots in vitro that results in death of the shoot tip. This condition, which can spread basipetally and affect the emergence of axillary shoots from buds lower down the stem, is due to the cessation of apical dominance. STN can occur at both shoot multiplication and rooting stages. One of the most common factors that cause STN is nutrient deficiency or imbalance. Moreover, the presence or absence of plant growth regulators (auxins or cytokinins) at specific developmental stages may impact STN. The cytokinin to auxin ratio within an in vitro plant can be modified by varying the concentration of cytokinins used in the culture medium. The supply of nutrients to in vitro shoots or plantlets might also affect their hormonal balance, thus modifying the occurrence of STN. High relative humidity within culture vessels and hyperhydricity are associated with STN. An adequate supply of calcium as the divalent cation (Ca2+) can hinder STN by inhibiting the accumulation of phenolic compounds and thus programmed cell death. Moreover, the level of Ca2+ affects auxin transport and ethylene production, and higher ethylene production, which can occur as a result of high relative humidity in or poor ventilation of the in vitro culture vessel, induces STN. High relative humidity can decrease the mobility of Ca2+ within a plant, resulting in Ca2+ deficiency and STN. STN of in vitro shoots or plantlets can be halted or reversed by altering the basal medium, mainly the concentration of Ca2+, adjusting the levels of auxins or cytokinins, or modifying culture conditions. This review examines the literature related to STN, seeks to discover the associated factors and relations between them, proposes practical solutions, and attempts to better understand the mechanism(s) underlying this condition in vitro.
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
In vitro shoots
Mineral nutrient deficiency
Physiological disorder
Plant growth regulators
Megjelenés:Planta. - 252 : 3 (2020), p. 1-35. -
További szerzők:Nezami-Alanagh, Esmaeil Barreal, María E. Kher, Mafatlal M. Wicaksono, Adhityo Gulyás Andrea (1985-) Hidvégi Norbert (1986-) Magyarné Tábori Katalin (1965-) (kertészmérnök) Mendlerné Drienyovszki Nóra (1977-) (agrármérnök) Márton László Landín, Mariana Gallego, Pedro Pablo Driver, John A. Dobránszki Judit (1967-) (biológus)
Pályázati támogatás:NKFIH-1150-6/2019
Internet cím:Szerző által megadott URL
Intézményi repozitóriumban (DEA) tárolt változat


001-es BibID:BIBFORM077298
Első szerző:Teixeira da Silva, Jaime A.
Cím:In vitro tissue culture of apple and other Malus species : recent advances and applications / Jaime A. Teixeira da Silva, Andrea Gulyás, Katalin Magyar-Tábori, Min-Rui Wang, Qiao-Chun Wang, Judit Dobránszki
ISSN:0032-0935 1432-2048
Megjegyzések:Main conclusion Studies on the tissue culture of apple have allowed for molecular, biotechnological and applied breeding research to advance. In the past 8 years, over 100 papers advancing basic biology, genetic transformation and cryobiology have emerged. Apple (Malus?x?domestica Borkh.; Rosaceae) is an important fruit crop grown mainly in temperate regions of the world. In vitro tissue culture is a biotechnological technique that has been used to genetically improve cultivars (scions) and rootstocks. This updated review presents a synthesis of findings related to the tissue culture of apple and other Malus spp. between 2010 and 2018. Increasingly complex molecular studies that are examining the apple genome, for example, in a bid to identify the cause of epigenetic mutations and the role of transposable elements in this process would benefit from genetically stable source material, which can be produced in vitro. Several notable or curious in vitro culture methods have been reported to improve shoot regeneration and induce the production of tetraploids in apple cultivars and rootstocks. Existing studies have revealed the molecular mechanism underlying the inhibition of adventitious roots by cytokinin. The use of the plant growth correction factor allows hypothetical shoot production from leaf-derived thin cell layers relative to conventional leaf explants to be determined. This updated review will allow novices and established researchers to advance apple and Malus biotechnology and breeding programs.
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Plant growth regulator
Thin cell layer
Megjelenés:Planta. - 249 : 4 (2019), p. 975-1006. -
További szerzők:Gulyás Andrea (1985-) Magyarné Tábori Katalin (1965-) (kertészmérnök) Wang, Min-Rui Wang, Qiao-Chun Dobránszki Judit (1967-) (biológus)
Pályázati támogatás:20428-3/2018/FEKUTSTRAT
Internet cím:Szerző által megadott URL
Intézményi repozitóriumban (DEA) tárolt változat
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