Micropropagation of Persian Walnut (Juglans regia L.)

Leslie, Chuck; McGranahan, Gale H.

doi:10.1007/978-3-642-76422-6_7

Cited by 25 publications

(22 citation statements)

References 13 publications

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“…The main problems in the in vitro introduction of J. regia adult material were related to the permanent appearance of bacterial contamination of endogenous origin called latent contamination (McGranahan et al, 1988), and the exudation of phytotoxic compounds of phenolic origin (Leslie and McGranahan, 1992). However, the use of reinvigorated material through consecutive pruning or macrografting (Claudot et al, 1992;Leslie and McGranahan, 1992) allowed a decrease in the incidence of this problem on the subsequent culture and development of in vitro explants (McGranahan et al, 1988), originating synthesis processes of plant growth regulators in quantity and quality similar to that obtained in material of embryonic origin .…”

Section: Discussionmentioning

confidence: 99%

“…However, the use of reinvigorated material through consecutive pruning or macrografting (Claudot et al, 1992;Leslie and McGranahan, 1992) allowed a decrease in the incidence of this problem on the subsequent culture and development of in vitro explants (McGranahan et al, 1988), originating synthesis processes of plant growth regulators in quantity and quality similar to that obtained in material of embryonic origin .…”

Section: Discussionmentioning

confidence: 99%

“…It has been suggested that the presence of polyamines, endogenous juglone, or the continuity of sclerenchymatic cylinders contained in the phloem of plant material inhibits root formation (Günes, 1999). This would explain the fact that only high rhizogenic rates have been obtained from material of embryonic origin (Leslie and McGranahan, 1992). This fact restricts the advantages that elite genotype cloning represents where selection occurs in advanced ontogenic states with a high complexity at both the metabolic and tissular levels .…”

Section: Scientific Notementioning

confidence: 99%

“…In the first case, between two and three months of stratification are required, whereas the propagation cycles are related to obtaining appropriate size patterns for grafting and the development of commercial specimens in a period of two to three years. With respect to the formation of microplants by means of in vitro culture, plants with intact roots, shoots, and leaves have been obtained in distinct culture mediums (Leslie and McGranahan, 1992;Driver y Kuniyuki, 1994;Sánchez-Olate et al, 1997;Fernández et al, 2000), finding that roots were more robust and developed than leaves (Kaur et al, 2006). However, there is no record of the utilization of this technique in adult J. regia material which is of vital importance for the development of a massive propagation program, taking into consideration that it is a recalcitrant species (Preece et al, 1989;Leslie and McGranahan, 1992;Caboni et al, 1996; …”

Section: Introductionmentioning

confidence: 99%

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Biological Activity of Essential Oils from Leaves and Fruits of Pepper Tree (Schinus molle L.) to Control Rice Weevil (Sitophilus oryzae L.)

Benzi

Stefanazzi

Ferrero

2009

Chilean J. Agric. Res.

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Rice weevil (Sitophilus oryzae L.) is a primary insect pest of stored grain. The development of resistance resulted in the application of synthetic insecticides. In recent years many plant essential oils have provided potential alternatives to currently used insect control agents. The Brazilian pepper tree (Schinus molle L. var. areira (L.) DC.) (Anacardiaceae) ) (Anacardiaceae) has different biological properties such as insecticidal activity. In this study, repellent, fumigant activity, nutritional indices, and feeding deterrent action were evaluated on S. oryzae adults. Filter paper impregnation was used to test fumigant toxicity, whereas treated whole wheat was used to evaluate repellent activity and a flour disk bioassay was done to evaluate feeding deterrent action and nutritional index alteration. Leaf essential oils showed repellent effects at both concentrations (0.04 and 0.4% w/w), while fruit essential oils lacked repellent activity. Both plant oils altered nutritional indices. Fruit essential oils had a strong feeding deterrent action (62%) while leaves had a slight effect (40.6%). With respect to fumigant activity, neither of the essential oils was found to be toxic. Resistance and toxicity problems of the synthetic insecticides have resulted in the necessity of finding more effective and healthier alternatives. Thus, essential oils are the most tested products presently (Papachristos and Stamopoulus, 2002; Umoetok and Gerard, 2003; Zhang et al., 2004; Tapondjou et al., 2005; Ferrero et al., 2006; Sánchez Chopa et al., 2006, Stefanazzi et al., 2006, Wang et al., 2006. Different biological activities of plant derivatives have been demonstrated for the control of stored grain pests (Golob et al., 1999; Rajendran and Sriranjini, 2008).The Brazilian pepper tree (Schinus molle L. var. areira (L.) DC.) is associated with agricultural crops in boundaries, windbreaks, riverbank protection, and watershed conservation. In popular medicine, it is use for its astringent, diuretic, antispasmodic properties among others. In pest control, it is used as a fumigant, repellent, and ovicide (Ruffínengo et al., 2005; Ferrero et al., 2006).The objective of the present study was to evaluate the fumigant, repellent and/or attractant, feeding deterrent activity, and the alterations in the nutritional physiology produced by the essential oils from leaves and fruits of S. molle var. areira on 3-to 4-day-old S. oryzae adults. V. BENZI et al. -BIOLOGICAL ACTIVITY OF ESSENTIAL OILS… MATERIALS AND METHODS InsectsThe insects came from a susceptible colony maintained in the Cátedra de Zoología Agrícola de la Universidad Nacional de Buenos Aires (UBA). They were bred in glass containers, 8 cm in diameter, 13 cm high, sealed with fine netting, maintained at 28 ± 1 ºC, 60-70% HR, a 12:12 photoperiod, and using whole wheat grains as food. Vegetal materialThe vegetal organs (leaves and mature fruits) of the pepper tree were collected during the summer period in Bahía Blanca city, Buenos Aires, Argentina (38°41' S; 62°17' ...

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Scientific Notementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Biological Activity of Essential Oils from Leaves and Fruits of Pepper Tree (Schinus molle L.) to Control Rice Weevil (Sitophilus oryzae L.)

Benzi

Stefanazzi

Ferrero

2009

Chilean J. Agric. Res.

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“…Nevertheless, general standards cannot be established that would allow for ensuring the success of subsequent rooting and acclimatation of the seedlings (Preece et al, 1989), given that the response varies according to the genotype, ontogeny, the position of the material used and mainly the cultivation and in vitro manipulation conditions (Leslie and McGranahan, 1992;Kozai et al, 2005;Hazarika, 2006). This obliges the study of techniques that can allow for improving the characteristics of the plant, with emphasis on the radicular system for its subsequent transfer to the field (Gonçalves et al, 1998).…”

Section: Introductionmentioning

confidence: 99%

Comparison of Root Induction in Mature Filbert (Corylus avellana L.) Explants by Agrobacterium Rhizogenes and Indolbutiric Acid

Sánchez‐Olate¹,

Sáez²,

Cartes³

et al. 2009

Chilean J. Agric. Res.

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From in vitro cultured adult material of Corylus avellana L. cv. Negretta, adventitious rooting of microshoots was evaluated. Rhizogenic induction mediated by two strains of wild-type Agrobacterium rhizogenes (A477 and A478) and indolbutyric acid (IBA) were compared under two light conditions (16:8 h photoperiod and complete darkness).The results indicate that in the 16:8 h photoperiod induction, the rooting rate with IBA (90%) was significantly higher than that obtained with the strain A477 of A. rhizogenes (67.7%), while with the strain A478 no statistically significant difference was obtained for the same variable (75%). On the other hand, under complete darkness, rooting mediated by IBA (90%) significantly surpassed the results obtained with both strains of A. rhizogenes (40 and 20%, for A478 and A477, respectively). In terms of the morphological variables of the resulting root system, induction mediated by IBA, with a 16:8 h photoperiod, generates a significantly higher number of roots (19 roots per microshoot) than that obtained with A. rhizogenes (mean 3.7 roots per microshoot), producing significant differences when comparing the results with the strain A478 (5 roots per microshoot) to those of the strain A477 (2.4 roots per microshoot). Induction under complete darkness does not have any effect on root number, independent of the rhizogenic inductor employed. Root length did not present significant differences among treatments, except in the presence of A. rhizogenes A477 and darkness.

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Protocols for Micropropagation of Woody Trees and Fruits

Jain¹,

Häggman²

2007

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Micropropagation of Persian Walnut (Juglans regia L.)

Cited by 25 publications

References 13 publications

Biological Activity of Essential Oils from Leaves and Fruits of Pepper Tree (Schinus molle L.) to Control Rice Weevil (Sitophilus oryzae L.)

Biological Activity of Essential Oils from Leaves and Fruits of Pepper Tree (Schinus molle L.) to Control Rice Weevil (Sitophilus oryzae L.)

Comparison of Root Induction in Mature Filbert (Corylus avellana L.) Explants by Agrobacterium Rhizogenes and Indolbutiric Acid

Protocols for Micropropagation of Woody Trees and Fruits

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