Hostplants ofAgrobacterium gypsophilae

Geesteranus, H.P. Maas; Barendsen, H.

doi:10.1007/bf02650208

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“…Maas Geesteranus and Barendsen (14) isolated a similar organism from galls on roses in the Netherlands and stated that pathogenicity tests showed the organism to be the cause of the galls. We isolated another yellow-pigmented, gram-negative, rod-shaped bacterium from galls at the graft union of G. paniculata cultivar (cv) Bristol Fairy, growing in a local nursery.…”

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Identification of Agrobacterium gypsophilae Strains NCPPB 179 and NCPPB 1948 as Erwinia herbicola

Graham

Quinn

1974

International Journal of Systematic Bacteriology

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On the basis of 56 characters, the organisms known as Agrobacteriurn gypsophilae NCPPB 179 and NCPPB 1948 are identified as strains of Erwinia herbicola. These strains did not cause gall formation when inoculated into four species of Gypsophila or into Lychnis chalcedonica.In 1934, Brown (3) described a bacterium which she isolated from galls found at the unions of stock and scion on plants of Gypsophila paniculata in the United States. The organism, named Bacterium gypsophilae, was a gram-negative rod which was motile by means of several bipolar flagella. It formed yellow colonies on beef infusion agar, was facultatively anaerobic, liquefied gelatin slowly, reduced nitrate to nitrite, did not produce indole, did not hydrolyze starch, and produced acid from glucose, sucrose, maltose, mannitol, and glycerol, but not from lactose. Brown stated that the organism caused galls when inoculated into healthy plants of G. paniculata and that it was also pathogenic to species of Silene, Dianthus, Lychnis, and Saponaria. Because of its purported capability to cause plant galls, it was transferred to the genus Agrobacteriurn by Starr and Weiss (1 6 ) .Maas Geesteranus and Barendsen (14) isolated a similar organism from galls on roses in the Netherlands and stated that pathogenicity tests showed the organism to be the cause of the galls. We isolated another yellow-pigmented, gram-negative, rod-shaped bacterium from galls at the graft union of G. paniculata cultivar (cv) Bristol Fairy, growing in a local nursery.De Ley et al. ( 6 ) studied the deoxyribonucleic acid base composition of many isolates of agrobacteria and pointed out that the organism in the National Collection of Plant Pathogenic Bacteria (NCPPB) named Agrobacteriurn gypsophilae NCPPB 179 had a mol% G+C value significantly lower than that of A . tumefaciens, A . rubi, or A . rhizogenes. In addition, they found that NCPPB 179 was not pathogenic to Datura strarnonium or Lycopersicon esculentum. Because many of the phenotypic characters of NCPPB 179 also did not agree with those of other members of the genus Agrobacterium but corresponded more closely with those of members of the family Enterobacteriaceae, De Ley ( 5 ) suggested that the organism might be a member of that family, and, because of its yellow pigmentation, it might be related to Erwinia herbicola. White (17) drew attention to the fact that the organism from rose galls (NCPPB 1948) might be related to the genus Erwinia.In view of these possibilities, we carried out studies to establish the identity of the organisms NCPPB 179 and NCPPB 1948. MATERIALS AND METHODSBacterial strains. A . gypsophilae NCPPB 179 was originally B. gypsophilae 179 in the collection of the late W. J. Dowson, who had received a culture of this strain from M. P. Starr. According to the Catalogue of Strains (1) of the American Type Culture (ATCC), A. gypsophilae Dowson 179 is the same organism as A. gypsophilae ATCC 13329, the latter having been passed by N. A. Brown to H. J. Conn and thence to M. P. Starr, who deposited it in the ...

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confidence: 99%

Identification of Agrobacterium gypsophilae Strains NCPPB 179 and NCPPB 1948 as Erwinia herbicola

Graham

Quinn

1974

International Journal of Systematic Bacteriology

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“…She was unable, however to find galls on many other plants which she tested, including carnations (Dianthus caryophyllus L.). Maas Geesteranus and Barendsen (1966) on the other hand record …”

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A strain of Erwinia herbicola pathogenic on Gypsophila paniculata

Miller

Quinn

Graham

1981

Netherlands Journal of Plant Pathology

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A yellow pigmented, rod-shaped, Gram negative, peritrichously flagellated, fermentative bacterium was isolated from galls on the stems of the ornamental plant, Gypsophila paniculata. The galls appeared to be similar to those described on the plant by Brown (1934).The isolate proved pathogenic when inoculated into healthy stems; it was identified as a strain of Erwinia herbicola (Lohnis) Dye. It is suggested that the organism should be named E. herbicola f. sp. gypsophilae.

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Tumours of Begonia and some other ornamentals, induced by Corynebacterium fascians

Hoof¹,

Huttinga²,

Knaap³

et al. 1979

Netherlands Journal of Plant Pathology

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In 1975 many tumours were observed in plants of Begonia 'Schwabenland' grown in Aalsmeer. Submersion of the roots of Nicotiana megalosiphon seedlings in a homogenate of tumorous tissue, induced tumours after two weeks. Short periods of submergence yielded results similar to those obtained after longer periods. Tumour homogenates lost their infectivity after ten rain at 50~ Aphids transmitted the infectious agent.Treatment with propylene oxide did not inhibit infectivity completely. Filtration through a 450 nm filter removed the infectious agent.Tobacco tumor virus or a viroid could not be isolated. Cultures of Corynebacterium fascians, isolated from tumours of N. megalosiphon were highly infectious and induced tumours in healthy N. megalosiphon and Begonia. Tumorous tissue homogenates of Pelargonium zonale, Dahlia sp., Gladiolus sp., and Lilium sp. also caused tumours in N. megalosiphon, from which C. fascians was isolated. It was not possible to produce tumours in iV. megalosiphon with homogenates from roses with symptoms of bud proliferation.

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Hostplants ofAgrobacterium gypsophilae

Cited by 4 publications

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Identification of Agrobacterium gypsophilae Strains NCPPB 179 and NCPPB 1948 as Erwinia herbicola

Identification of Agrobacterium gypsophilae Strains NCPPB 179 and NCPPB 1948 as Erwinia herbicola

A strain of Erwinia herbicola pathogenic on Gypsophila paniculata

Tumours of Begonia and some other ornamentals, induced by Corynebacterium fascians

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