Empress Tree (Paulownia tomentosa Steud.)

Burger, David W.

doi:10.1007/978-3-642-61535-1_18

Cited by 6 publications

(6 citation statements)

References 5 publications

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“…In vitro propagation from axillary buds is a useful technique for producing clonal plantlets while plant regeneration via adventitious bud induction is an interesting tool in order to explore variability, introduce new characteristics of agronomic value and to develop new varieties through genetic transformation. Micropropagation from mature (15-year-old) trees of P. tomentosa has been reported via axillary shoot development (Burger 1989;Song et al 1989), whereas adventitious bud regeneration has scarcely been investigated in this species, and limited to those reporting bud formation from hypocotyl (Marcotrigiano and Stimart 1983) and leaf explants (Rao et al 1996) from seedlings. Protocols for adventitious shoot regeneration in other different Paulownia species and hybrids have been defined (Rao et al 1996;Yang et al 1996;Bergmann and Moom 1997), although the adventitious buds were also initiated from explants taken from juvenile material of unproven value, specifically from in vitro-grown seedlings.…”

Section: Introductionmentioning

confidence: 97%

Thidiazuron-induced high-frequency plant regeneration from leaf explants of Paulownia tomentosa mature trees

Corredoira

Ballester

Viéitez

2008

Plant Cell Tiss Organ Cult

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Attempts were made to study the effect of thidiazuron (TDZ) on adventitious shoot induction and plant development in Paulownia tomentosa explants derived from mature trees. Media with different concentrations of TDZ in combination with an auxin were used to induce adventitious shoot-buds in two explant types: basal leaf halves with the petiole attached (leaf explant) and intact petioles. Optimal shoot regeneration was obtained in leaf explants cultured on induction medium containing TDZ (22.7 or 27.3 lM) in combination with 2.9 lM indole-3-acetic acid (IAA) for 2 weeks, and subsequent culture in TDZ-free shoot development medium including 0.44 lM BA for a further 4-week period. The addition of IAA to the TDZ induction medium enhanced the shoot-forming capacity of explants. The caulogenic response varied significantly with the position of the explant along the shoot axis. The highest regeneration potential (85-87%) and shoot number (up to 17.6 shoots/explant) were obtained in leaf explants harvested from the most apical node exhibiting unfolded leaves (node 1). An analogous trend was also observed in intact petiole explants, although shoot regeneration ability was considerably lower, with values ranging from 15% for petioles isolated from node 1 to 5% for those of nodes 2 and 3. Shoot formation capacity was influenced by the genotype, with regeneration frequencies ranging from 50% to 70%. It was possible to root elongated shoots (20 mm) in basal medium without growth regulators; however, rooting frequency was significantly increased up to 90% by a 7-day treatment with 0.5 lM indole-3-butyric acid, regardless of the previous culture period in shoot development medium (4 or 8 weeks). Shoot quality of rooted plantlets was improved not only by IBA treatment but also by using material derived from the 4-week culture period. Regenerated plantlets were successfully acclimatized in the greenhouse 8 weeks after transplanting.

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Section: Introductionmentioning

confidence: 97%

Thidiazuron-induced high-frequency plant regeneration from leaf explants of Paulownia tomentosa mature trees

Corredoira

Ballester

Viéitez

2008

Plant Cell Tiss Organ Cult

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“…Paulownia species are easily propagated using in vitro techniques (Burger, 1989). Several authors have reported on the use of juvenile tissue (Fu, 1978;Ho et al, 1988;Huang, 1985;jagannathan and Marcotrigiano, 1987;Marcotrigiano and Stimart, 1983;Ni and Ma, 1982;Radojevic, 1979), while others have used mature tissues (Burger et al, 1985;Yang et al, 1990).…”

Section: Introductionmentioning

confidence: 98%

In vitroOrganogenesis and Plantlet Formation ofPaulownia elongata

Chang

Donald

1992

South African Forestry Journal

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SYNOPSISShoot tips, nodes, in~ernodes and leave,sderived from aseptically produced seedlings of Paulownia elongata were cultured on Murashige and Shoog medium (MS) supplemented with NAA and BA. Medium containing a 1 mg/l NAA and 0,5 mg~f BAgave,th.e best shoot production from leafcallus (50 shoots per 25 mm 2 segment). Sh~ot tips cultured on medium containing l.mg/f BA gave rise to a 9,7-fold increase in shoot production in 30 days. The shoots prod';lced could be rooted e.lther on MS medium without growth regulators or treated as straight cuttings and rooted In a 1:1 composted pme bark: vermiculite growing medium.

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“…The Paulownia witches' broom disease may lead to the premature death of the tree. It is also known that virus and virus vector nematodes can threaten Paulownia plantations causing deformation of the appearance of the branches of infected plants (Hsieh 1983;Burger 1989. Even though the semi-endoparasitic nematodes R. buxophilus (Fig. 1C) were frequent in the root zone, a special focus should be given to the nematode species which are vectors of plant viruses.…”

Section: Resultsmentioning

confidence: 99%

Plant Parasitic Nematodes on Paulownia tomentosa in Poland

Skwiercz

Zapałowska

Flis

et al. 2022

Journal of Horticultural Research

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Short-rotation woody plants of the genus Paulownia are attracting more and more attention as trees that produce biomass and reduce the concentration of carbon dioxide in the atmosphere. However, plants growing in monoculture affect the properties and condition of the soil. One of the effects of changes in the soil environment is the growing population of plant parasitic nematodes (PPN). The article presents information about the PPN inhabiting the root zone of the Paulownia tomentosa plantation in Poland. In this study, the frequency and density of nematode populations in samples from seven plantations in Poland were determined. The extracted nematodes were identified at the species level on the basis of the male and female morphological characteristics according to several available identification resources. A total of 20 nematode species were identified, of which 9 were classified as accessory and 11 as occasional. Among them, Trichodorus viruliferus and Longidorus attenuatus belonging to the group of viral messengers were identified.

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Empress Tree (Paulownia tomentosa Steud.)

Cited by 6 publications

References 5 publications

Thidiazuron-induced high-frequency plant regeneration from leaf explants of Paulownia tomentosa mature trees

Thidiazuron-induced high-frequency plant regeneration from leaf explants of Paulownia tomentosa mature trees

In vitroOrganogenesis and Plantlet Formation ofPaulownia elongata

Plant Parasitic Nematodes on Paulownia tomentosa in Poland

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