scholarly journals First report of mortality in Phoenix canariensis associated with subgroup 16SrIV‐D phytoplasmas in Coahuila, Mexico

2020 ◽  
Vol 19 (12) ◽  
pp. 846-857
Author(s):  
José Palma-Cancino Pablo ◽  
Alfredo Samaniego-Gaxiola José ◽  
Narváez María ◽  
Nic-Matos Germán ◽  
Chew-Madinaveitia Yasmín ◽  
...  
Keyword(s):  
First Report ◽  
Phoenix Canariensis

scholarly journals First Report of Neovaginatispora fuckelii Causing Leaf Spot on Phoenix canariensis

Plant Disease ◽  
2021 ◽  
Vol 105 (1) ◽  
pp. 223
Author(s):  
Chunlin Yang ◽  
Xiulan Xu ◽  
Qian Zeng ◽  
Yicong Lv ◽  
Siyi Liu ◽  
...  
Keyword(s):  
Leaf Spot ◽  
First Report ◽  
Phoenix Canariensis

scholarly journals First Report of Armillaria Butt Rot Caused by Armillaria mellea on Phoenix canariensis in Italy

Plant Disease ◽  
2007 ◽  
Vol 91 (11) ◽  
pp. 1517-1517 ◽  
Author(s):  
F. M. Grasso ◽  
A. Pane ◽  
S. O. Cacciola
Keyword(s):  
Morphological Characteristics ◽  
Phytopathogenic Fungi ◽  
Mount Etna ◽  
Malt Extract ◽  
Wood Fibers ◽  
First Report ◽  
Butt Rot ◽  
Armillaria Mellea ◽  
Phoenix Canariensis ◽  
Electrophoretic Patterns

During 2006, in a garden in the Mount Etna Piedmont, eastern Sicily (Italy), a 40-year-old specimen of Canary Island date palm (Phoenix canariensis hort. ex Chabaud) with a trunk circumference at breast height of 220 cm showed a rotted lesion with a viscous, brown ooze at the stem base and root initials. The lesion extended to approximately one-third of the trunk circumference. Trunk excavation exposed a wet rot of internal tissues, a cream-colored mycelial mat, and a mushroom-like smell. Although the rot spread inward (approximately 25 cm deep) with decay of nonlignified ground tissues and blackening of wood fibers, the palm did not show symptoms on the canopy. Conversely, ferns, apricot, and cedar trees growing at the same site had died from Armillaria rot over the last 10 years (2). In late autumn, clumps of honey mushroom-like sphorophores with a prominent annulus encircling the stalk formed at the base of the trunk. The spore print of the basidiocarp was light cream. The morphology of 100 basidiospores was determined microscopically. The basidiospores were smooth, elliptical, hyaline, and measured 7 to 9.5 × 5 to 7 μm. The fungus was isolated from diseased tissues on selective benomyl-dichloran medium (3) and was transferred to 2% malt extract agar where it formed ribbon-shaped, fast-growing, and profusely branching rhizomorphs. Armillaria mellea (Vahl.) P. Kumm. was identified on the basis of cultural and morphological characteristics. Identification was confirmed by electrophoresis of mycelial proteins and isozymes in polyacrylamide and starch slab gels (1,2). The electrophoretic patterns of the isolate from P. canariensis were identical to those of reference isolates of A. mellea from grapevine and fern isolated previously at the same site (2). The pathogenicity of the A. mellea isolate from palm (A-palm5) was tested on 20 3-year-old potted seedlings of P. canariensis grown in a greenhouse at 24 ± 4°C. Seedlings were inoculated with wood pieces of holly oak (Quercus ilex L.) colonized by the fungus (two pieces for each seedling) (4). Ten noninoculated plants served as controls. After 12 months, mycelial fans colonizing the root initials, the base of the stem, and the leaf stalks were observed on 14 inoculated seedlings. Although only four infected seedlings showed decline symptoms, the fungus was reisolated from all inoculated plants. No infections were observed in control plants. To our knowledge, this is the first report of Armillaria butt rot on a palm in Europe. References: (1) M. Bragaloni et al. Eur. J. For. Pathol. 27:147, 1997. (2) S. Grasso et al. Plant Dis. 84:592, 2000. (3) T. C. Harrington et al. Armillaria. Page 81 in: Methods for Research on Soilborne Phytopathogenic Fungi. The American Phytopathological Society, St. Paul, MN, 1992. (4) R. Metaliaj et al. Phytopathol. Mediterr. 45:3, 2006.

scholarly journals First Report of Bud Rot of Canary Island Date Palm Caused by Phytophthora palmivora in Italy

Plant Disease ◽  
2007 ◽  
Vol 91 (8) ◽  
pp. 1059-1059
Author(s):  
A. Pane ◽  
C. Allatta ◽  
G. Sammarco ◽  
S. O. Cacciola
Keyword(s):  
Canary Island ◽  
Date Palm ◽  
Brown Rot ◽  
Selective Medium ◽  
Phytophthora Species ◽  
Phytophthora Palmivora ◽  
American Phytopathological Society ◽  
First Report ◽  
Phoenix Canariensis ◽  
Electrophoretic Patterns

Canary Island date palm (Phoenix canariensis hort. ex Chabaud) is planted as an ornamental in Mediterranean climatic regions of the world. From 2004 to 2006, withering of the spear leaf was observed on screenhouse-grown potted plants of this palm in Sicily (Italy). The first symptom was a dark brown rot that extended from the petiole base of the spear to the adjacent youngest leaves and killed the bud. Dissection of plants revealed a foul-smelling internal rot. After the bud died, external older leaves remained green for months. As much as 10% of plants in a single nursery were affected. A Phytophthora species was consistently isolated from symptomatic plants on BNPRAH selective medium (4). Single zoospore isolates were obtained from the colonies. The species isolated was identified as Phytophthora palmivora (E. J. Butler) E. J. Butler on the basis of morphological and cultural characteristics (3). On V8 juice agar, the isolates produced elliptical to ovoid, papillate sporangia (33 to 77 × 22 to 38 μm) with a mean length/breadth ratio of 1.8. Sporangia were caducous with a short pedicel (mean pedicel length = 5 μm) and had a conspicuous basal plug. All isolates were heterothallic and produced amphigynous antheridia, oogonia, and oospores when paired with reference isolates of P. nicotianae and P. palmivora of the A2 mating type. The oogonium wall was smooth. Identification was confirmed by electrophoresis of mycelial proteins in polyacrylamide slab gels (1). The electrophoretic patterns of total mycelial proteins and four isozymes (alkaline phosphatase, esterase, glucose-6-phosphate dehydrogenase, and malate dehydrogenase of the isolates) from Phoenix canariensis were identical to those of P. palmivora reference isolates, including four Italian ones, two from pittosporum and olive, respectively, and two (IMI 390579 and 390580) from Grevillea spp. Phoenix canariensis isolates were clearly distinct from those of other heterothallic papillate species including P. capsici, P. citrophthora, P. katsurae, P. nicotianae, and P. tropicalis. Pathogenicity of one isolate from Phoenix canariensis (IMI 395345) was tested on 10 2-year-old potted Canary Island date palm plants. An aqueous 105 zoospores per ml suspension (200 μl) was pipetted onto unwounded petiole bases of the three youngest central leaves of each plant. Sterile water was pipetted onto 10 control plants. All plants were incubated in 100% humidity at 24°C for 48 h and maintained in a greenhouse at 20 to 28°C. Within 3 weeks after inoculation, inoculated plants developed symptoms identical to those observed on plants with natural infections. Control plants remained healthy. P. palmivora was reisolated from symptomatic plants. Phytophthora bud rot is a common palm disease worldwide and Phoenix canariensis is reported as a host (2). To our knowledge, this is the first report of Phytophthora bud rot on Phoenix canariensis in Italy. References: (1) S. O. Cacciola et al. EPPO Bull. 20:47, 1990. (2) M. L. Elliot et al., eds. Compendium of Ornamental Palm Diseases and Disorders. The American Phytopathological Society, St. Paul, MN, 2004. (3) D. C. Erwin and O. K. Ribeiro. Phytophthora Diseases Worldwide. The American Phytopathological Society, St. Paul, MN, 1996. (4) H. Masago et al. Phytopathology, 67:425, 1977.

First Report of a Serenomyces sp. From Copernicia × burretiana, Latania loddigesii, and Phoenix canariensis in Florida and the United States

2006 ◽  
Vol 7 (1) ◽  
pp. 46 ◽  
Author(s):  
M. L. Elliott ◽  
E. A. Des Jardin
Keyword(s):  
United States ◽  
The United States ◽  
First Report ◽  
Phoenix Canariensis

This is the first report of a Serenomyces sp. on Copernicia × burretiana, L. loddigesii, and P. canariensis in Florida and the United States. Accepted for publication 6 November 2006. Published 13 December 2006.

A fossil Aspergillus from Eocene Dominican amber

1988 ◽  
Vol 62 (01) ◽  
pp. 141-143 ◽  
Author(s):  
Gerard M. Thomas ◽  
George O. Poinar
Keyword(s):  
Dominican Republic ◽  
Fossil Species ◽  
First Report ◽  
Dominican Amber ◽  
Eocene Amber

A sporulating Aspergillus is described from a piece of Eocene amber originating from the Dominican Republic. The Aspergillus most closely resembles a form of the white spored phase of Aspergillus janus Raper and Thom. This is the first report of a fossil species of Aspergillus.

1392: First Report of a New Transurethral Detaching Prostatectomy of the Prostate (TUDP)

2005 ◽  
Vol 173 (4S) ◽  
pp. 377-378
Author(s):  
Yasunori Hiraoka ◽  
Kazuhiko Yamada ◽  
Yuji Shimizu ◽  
Hiroyuki Abe
Keyword(s):  
First Report
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