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1.

001-es BibID:BIBFORM102892
035-os BibID:(cikkazonosító)677 (WoS)000846075500001 (Scopus)85137460294
Első szerző:Abdalla, Neama
Cím:An Academic and Technical Overview on Plant Micropropagation Challenges / Neama Abdalla, Hassan El-Ramady, Mayada K. Seliem, Mohammed E. El-Mahrouk, Naglaa Taha, Yousry Bayoumi, Tarek A. Shalaby, Judit Dobránszki
Dátum:2022
ISSN:2311-7524
Megjegyzések:The production of micropropagated plants in plant-tissue-culture laboratories and nurseries is the most important method for propagation of many economic plants. Micropropagation based on tissue-culture technology involves large-scale propagation, as it allows multiplication of a huge number of true-to-type propagules in a very short time and in a very limited space, as well as all year round, regardless of the climate. However, applying plant-tissue-culture techniques for the commercial propagation of plants may face a lot of obstacles or troubles that could result from technical, biological, physiological, and/or genetical reasons, or due to overproduction or the lack of facilities and professional technicians, as shown in the current study. Moreover, several disorders and abnormalities are discussed in the present review. This study aims to show the most serious problems and obstacles of plant micropropagation, and their solutions from both scientific and technical sides. This review, as a first report, includes different challenges in plant micropropagation (i.e., contamination, delay of subculture, burned plantlets, browning, in vitro rooting difficulty, somaclonal variations, hyperhydricity, shoot tip necrosis, albino plantlets, recalcitrance, shoot abnormalities, in vitro habituation) in one paper. Most of these problems are related to scientific and/or technical reasons, and they could be avoided by following the micropropagation protocol suitable for each plant species. The others are dominant in plant-tissue-culture laboratories, in which facilities are often incomplete, or due to poor infrastructure and scarce funds.
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
acclimatization
browning
contamination
delay of subculture
hyperhydricity
recalcitrance
somaclonal variations
totipotency
Megjelenés:Horticulturae. - 8 : 8 (2022), p. 1-28. -
További szerzők:El-Ramady, Hassan (1969-) (agrármérnök) Seliem, Mayada Kadri Elmahrouk, Mohammed Taha, Naglaa Bayoumi, Yousry Shalaby, Tarek Dobránszki Judit (1967-) (biológus)
Pályázati támogatás:TKP2021-EGA-20
Egyéb
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2.

001-es BibID:BIBFORM116137
035-os BibID:(cikkazonosító)1226 (WoS)001152827800001 (Scopus)85178271139
Első szerző:Gangaram, Serisha
Cím:Antioxidant and Cytotoxic Activities of Leaf and Stem Extracts of Barleria albostellata C.B. Clarke / Gangaram, Serisha; Naidoo, Yougasphree; Dewir, Yaser Hassan; Singh, Moganavelli; Daniels, Aliscia Nicole; Magyar-Tábori, Katalin; Mendler-Drienyovszki, Nóra
Dátum:2023
ISSN:2311-7524
Megjegyzések:Barleria albostellata C.B. Clarke (Acanthaceae) is a plant native to South Africa and relatively few studies have been performed on it. Species in this genus are known for their ethnopharmacological and phyto-medicinal values. In this study, the total flavonoid and phenolic contents and the antioxidant and cytotoxic activities of hexane, chloroform, and methanol extracts were evaluated at five different concentrations (15, 30, 60, 120, and 240 mu g/mL). The antioxidant activity of the extracts of B. albostellata was assessed in vitro using the 2,2 '-diphenyl-1-picrylhydrazyl (DPPH) scavenging and ferric reducing antioxidant power (FRAP) assays, while the phenolic content was determined using a Folin-Ciocalteu assay. The extracts' cytotoxicity was established using a 3-[(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide] (MTT) assay in human embryonic kidney (HEK293), cervical cancer (HeLa), and breast adenocarcinoma (MCF-7) cell lines. Methanolic leaf extracts had the highest total flavonoid content (42.39 +/- 1.14 mg GAE/g DW) compared to other solvents. Additionally, the total phenolic content was the greatest in the methanol leaf extract (6.05 +/- 0.09 GAE/g DW), followed by the methanol stem extracts (2.93 +/- 0.73 GAE/g DW). The methanolic leaf and stem extract concentrations needed for 50% inhibition (DPPH) were 16.95 mu g/mL and 14.27 mu g/mL, respectively, whereas for FRAP, the reducing powers of all extracts were considerably lower than the ascorbic acid standard. The IC50 values of extracts tested in the three cell lines were >63 mu g/mL. According to the findings of our study, the leaves and stems of B. albostellata are rich in several bioactive compounds that may be a possible source of natural antioxidants and may have the potential to treat certain diseases. The extraction of the bioactive compounds from the leaves and stems of B. albostellata using bioassay-guided fractionation and the assessment of their safety will be essential for further investigations into this species in the search of potential novel therapeutic drug leads. To the best of our knowledge, this is the first report of the cytotoxic activities of leaf and stem extracts of Barleria albostellata.
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Horticulturae. - 9 : 11 (2023), p. 1-18. -
További szerzők:Naidoo, Yougasphree Dewir, Yaser Hassan Singh, Moganavelli Daniels, Aliscia Nicole Magyarné Tábori Katalin (1965-) (kertészmérnök) Mendlerné Drienyovszki Nóra (1977-) (agrármérnök)
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Intézményi repozitóriumban (DEA) tárolt változat
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3.

001-es BibID:BIBFORM113691
035-os BibID:(cikkazonosító)732 (WoS)001038750200001 (Scopus)85166316242
Első szerző:Gangaram, Serisha
Cím:Micromorphology of Barleria albostellata (Grey Barleria) Flower and Pollen Grains / Gangaram, Serisha; Naidoo, Yougasphree; Dewir, Yaser Hassan; Singh, Moganavelli; Magyar-Tábori, Katalin
Dátum:2023
ISSN:2311-7524
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Horticulturae. - 9 : 7 (2023), p. 1-11. -
További szerzők:Naidoo, Yougasphree Dewir, Yaser Hassan Singh, Moganavelli Magyarné Tábori Katalin (1965-) (kertészmérnök)
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Intézményi repozitóriumban (DEA) tárolt változat
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4.

001-es BibID:BIBFORM102634
035-os BibID:(cikkazonosító)591 (WoS)000833676900001 (Scopus)85133533530
Első szerző:Hanász Alexandra (környezetgazdálkodási agrármérnök)
Cím:Responses of Potato (Solanum tuberosum L.) Breeding Lines to Osmotic Stress Induced in In Vitro Shoot Culture / Hanász Alexandra, Dobránszki Judit, Mendler-Drienyovszki Nóra, Zsombik László, Magyar-Tábori Katalin
Dátum:2022
ISSN:2311-7524
Megjegyzések:In vitro experiments were conducted to study the responses of potato (Solanum tuberosum L.) genotypes to osmotic stress. In vitro shoot cultures of 27 breeding lines and their drought-tolerant parents (referent lines: C103 and C107) were tested under osmotic stress induced by addition of PEG 6000 (Mw = 6000; 5.0, 7.5, 10.0%, w/v), D-mannitol (0.1, 0.2, 0.3 M) and PEG 600 (Mw = 600; 2.5, 5.0, 7.5%, w/v) to the Murashige-Skoog medium. Stress index (SI) was calculated from shoot length (SL) and root length (RL), root numbers (RN) and the rate of surviving shoots (SR) (SISL;RL;RN;SR = Parameter(SL;RL;RN;SR) of treated shoots/Parameter(SL;RL;RN;SR) of control shoots x 100) to compare genotypes. In the average of each breeding line and concentration, the osmotic agents resulted in SI values of 40.1, 60.8, 82.6 and 76.0 for SISL, SIRL, SIRN and SISR, respectively. In general, all SI values of C103 and SIRL,RN of C107 were significantly higher than those of the breeding lines. Nine breeding lines were found to be promising based on their final ranking. According to the results, 7.5% and 10% PEG 6000 or 0.2 M and 0.3 M D-mannitol treatments proved to be suitable for the selection of osmotic stress-tolerant genotypes.
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
polyethylene glycol
D-mannitol
tissue culture
stress index
morphological traits
Megjelenés:Horticulturae. - 8 : 7 (2022), p. 1-24. -
További szerzők:Dobránszki Judit (1967-) (biológus) Mendlerné Drienyovszki Nóra (1977-) (agrármérnök) Zsombik László (1976-) (agrármérnök) Magyarné Tábori Katalin (1965-) (kertészmérnök)
Pályázati támogatás:TKP2021- EGA-20
Egyéb
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Intézményi repozitóriumban (DEA) tárolt változat
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5.

001-es BibID:BIBFORM116031
035-os BibID:(cikkazonosító)1189 (WoS)001114349000001 (Scopus)85178285268
Első szerző:Talan, Anuradha
Cím:In Vitro Propagation and Phytochemical Composition of Centratherum punctatum Cass : A Medicinal Plant / Talan, Anuradha; Mujib, Abdul; Ejaz, Bushra; Bansal, Yashika; Dewir, Yaser Hassan; Magyar-Tábori, Katalin
Dátum:2023
ISSN:2311-7524
Megjegyzések:An effective and reproducible micropropagation protocol was developed for Centratherum punctatum Cass. Successful in vitro initiation of callus and subsequent plant regeneration were obtained on nodal explants cultured on MS medium supplemented with plant growth regulators (PGRs). The maximum frequency of callus formation (98.3%) was noted on MS containing 4.0 mg/L 6-Benzylaminopurine (BAP) and 3.5 mg/L Kinetin with a maximum callus weight of 2.02 g. The best shoot induction frequency (100%) with an average of 30.2 shoots per explant was achieved when 4.5 mg/L BAP and 4.0 mg/L Kinetin were added to the MS. The same PGR combination resulted in the best callus-mediated shoot formation (8.3 shoots/callus mass). The highest rhizogenic response (95.3%) with an average 26.1 roots per shoot and root length of 6.2 cm was obtained with 1.0 mg/L Indole-3-acetic acid (IAA)-supplemented MS medium. The gas chromatography-mass spectrometry (GC-MS) technique was applied in the present study to analyze the methanolic extracts of the leaf, callus, and root of regenerated C. punctatum shoots to detect the different phytochemical constituents. The leaf extract of the regenerated C. punctatum showed 37 phytocompounds; some important bioactive compounds were the Phytol,1,6-Octadien 3,5-Dimethyl-Cis, 4,8-Dimethylnona-3,8-dien-2-one, 2,6-Octadiene, Stigmasterol, Chondrillasterol, Lanosteryl acetate, etc. In the callus, the extract had a total of 57 phytocompounds; among them, the Stigmasterol, Guanosine, and Tri-decanoic acid were the major ones. In the root extract, the GC-MS revealed a low number of 23 phytocompounds, the important compounds of which were Stigmasterol, Trimethylsilyl (TMS) derivative, Chrysantenyl 2-methuylbutanoate, 4-tert-Butoxybutan-1-ol, etc. The order in terms of numbers of phytocompounds present in tissue sources are callus > leaf > root.
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Horticulturae. - 9 : 11 (2023), p. 1-16. -
További szerzők:Mujib, Abdul Ejaz, Bushra Bansal, Yashika Dewir, Yaser Hassan Magyarné Tábori Katalin (1965-) (kertészmérnök)
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Intézményi repozitóriumban (DEA) tárolt változat
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6.

001-es BibID:BIBFORM108364
035-os BibID:(cikkazonosító)205 (Scopus)85149070869 (WoS)000939119100001
Első szerző:Zabiák Andrea (élelmiszerbiztonsági és -minőségi mérnök, élelmiszermérnök)
Cím:Diaporthe and Diplodia species associated with walnut (Juglans regia L.) in Hungarian orchards / Andrea Zabiák, Csilla Kovács, Ferenc Takács, Károly Pál, Ferenc Peles, Erzsébet Fekete, Levente Karaffa, Kata Mihály, Michel Flipphi, Erzsébet Sándor
Dátum:2023
ISSN:2311-7524
Megjegyzések:Walnut (Juglans regia L.) production is a developing sector in Hungarian horticulture, where preharvest fruit rot increasingly causes economic losses. Previously, fungi from the Diaporthaceae and Botryosphaeriaceae families were isolated with a high incidence from rotten fruits. Here, we identify these pathogens from different plant parts (twigs, buds, and shoots) in orchards in the north-east of Hungary, and test their pathogenicity on immature nuts. Diaporthe eres Nitschke and Diplodia seriata De Notaris were identified in isolates from different symptomatic and asymptomatic plant parts based on their ITS (nuclear ribosomal internal transcribed spacer) and tef1 (translation elongation factor EF-1-alpha gene) DNA sequences. Purified monocultures caused rot of immature nuts following in vitro inoculation. Our results suggest that D. eres Nitschke and D. seriata De Notaris lingering on buds and overwintering woody parts may affect the seasonal nuts through wound infection. Infection by Diaporthe and Botryosphaeriaceae species present on woody plant parts, as well as on/in buds has been reported in Mediterranean countries. This is the first report of such stepwise aetiology from a region with continental weather. Climate change, associated weather patterns and the limitations of fungicide use in the European Union, among other factors, could be responsible for the increasing number of infections and economic damage caused by these pathogens.
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
walnut rot
wood cancer
bud infection
Diplodia sp.
Diaporthe sp.
pathogenicity
Megjelenés:Horticulturae. - 9 : 2 (2023), p. 1-15. -
További szerzők:Kovács Csilla (1990-) (élelmiszerbiztonsági és minőségi mérnök) Takács Ferenc (1972-)(növényvédelmi szakmérnök) Pál Károly (1978-) (mikrobiológus) Peles Ferenc (1979-) (mikrobiológia, élelmiszer-mikrobiológia, minőségügy) Fekete Erzsébet (1975-) (biotechnológus, egyetemi tanár) Karaffa Levente (1971-) (biotechnológus, egyetemi tanár) Mihály Kata (1990-) (élelmiszerbiztonsági és -minőségi mérnök) Flipphi, Michel (1964-) Karaffa Erzsébet Mónika (1972-) (mikrobiológus, egyetemi tanár)
Pályázati támogatás:NN-128867
OTKA
K-138489
OTKA
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Intézményi repozitóriumban (DEA) tárolt változat
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