根农杆菌T-DNA基因对榆属植物无性系繁殖的影响

IF 1.7 4区农林科学 Q2 HORTICULTURE

Journal of Horticultural Science & Biotechnology Pub Date : 1999-01-01 DOI:10.1080/14620316.1999.11511143

C. Rinallo, L. Mittempergher, G. Frugis, D. Mariotti

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引用次数: 18

摘要

嫁接繁殖是一种可行的无性系繁殖方法，但嫁接不亲和性是主要问题。扦插生根并不总能得到令人满意的结果。对生根能力较差的抗荷兰榆树病的榆树无性系枝条，在施用生长调节剂混合物后，在空气中形成层状;接种发根农杆菌1855野生型(a.r. 1855)或农杆菌-ORF11 (a.r. ORF11);施用生长调节剂混合物，接种a.r. 1855或a.r. ORF11。仅用生长调节剂处理的嫩枝生根率低;只接种农杆菌菌株的芽生根率很低;用生长调节剂处理和用农杆菌菌株接种的嫩枝生根率最高。结果表明，这些抗逆性无性系有生根的可能，对生长条件较好的榆树无性系繁殖具有明显的优势。

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Clonal propagation in the genus Ulmus: Improvement of rooting ability by Agrobacterium rhizogenes T-DNA genes

SummaryElm clones may be propagated by grafting, but graft incompatibility is a major problem. Rooting by cuttings does not always give satisfactory results. Shoots of elm clones resistant to Dutch Elm Disease (caused by Ophiostoma ulmi Buism.) and with poor rooting ability, were air layered after one of the following five treatments: application of growth regulator mixture; inoculation with Agrobacterium rhizogenes wild type 1855 (A.r. 1855) or Agrobacterium tumefaciens-ORF11 (A.t. ORF11); application of growth regulator mixture and inoculation with A.r. 1855 or A.t. ORF11. Shoots treated only with growth regulators exhibited low percentage of rooting; shoots inoculated with only Agrobacterium strains produced very low percentage of rooting; shoots treated with growth regulator and inoculated with Agrobacterium strains exhibited the best percentage of rooting. The results demonstrated the possibility of rooting of these recalcitrant clones, with clear advantage for the propagation of elm clones with grow...

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来源期刊

Journal of Horticultural Science & Biotechnology 农林科学-园艺

CiteScore

3.90

自引率

5.30%

发文量

审稿时长

3 months

期刊介绍： The Journal of Horticultural Science and Biotechnology is an international, peer-reviewed journal, which publishes original research contributions into the production, improvement and utilisation of horticultural crops. It aims to provide scientific knowledge of interest to those engaged in scientific research and the practice of horticulture. The scope of the journal includes studies on fruit and other perennial crops, vegetables and ornamentals grown in temperate or tropical regions and their use in commercial, amenity or urban horticulture. Papers, including reviews, that give new insights into plant and crop growth, yield, quality and response to the environment, are welcome, including those arising from technological innovation and developments in crop genome sequencing and other biotechnological advances.