Life cycle of a new species of Blumeriella (Ascomycotina: Dermateaceae), a leaf-spot pathogen of spirea

1988 ◽  
Vol 66 (10) ◽  
pp. 2048-2054 ◽  
Author(s):  
Margaret A. Williamson ◽  
Ernest C. Bernard

Cylindrosporium filipendulae Thuem. was isolated from diseased Spiraea ×vanhouttei Zabel in Tennessee. On the basis of acervulus formation and conidial morphology, C. filipendulae is transferred to the genus Phloeosporella. Apothecia observed on overwintered S. ×vanhouttei leaves were determined by cultural methods to be the teleomorph of the Phloeosporella species. Conidia produced in culture by ascospore isolates infected spirea leaves and induced symptoms identical with those caused by the Phloeosporella species. Morphology and development of the teleomorph were compared with those of Blumeriella jaapii (Rehm) v. Arx (= Coccomyces hiemalis Hig.) and found to be quite similar. The new teleomorph is described as a species of Blumeriella.

2014 ◽  
Vol 13 (4) ◽  
Author(s):  
Abbas Nasehi ◽  
Jugah Bin Kadir ◽  
Farnaz Abed Ashtiani ◽  
Mehdi Nasr-Esfahani ◽  
Mui Yun Wong ◽  
...  

1997 ◽  
Vol 66 (4) ◽  
pp. 235-246 ◽  
Author(s):  
Fábio Lang da Silveira ◽  
André Carrara Morandini

Nausithoe aurea, a new species of scyphozoan Coronatae, is described from São Paulo State, Brazil. The solitary scyphistomae, with some zooxanthellae, strobilated producing planuloids and medusae; this represents an intermediate life cycle between that of metagenetic Nausithoidae and the submarine cave-dwelling, reduced medusa stage of Nausithoe planulophora (Werner, 1971). The periderm tube of the scyphistomae has 16 internal cusps in all whorls. The medusae present yellow pigment spots in most of their lappets. The early embryonic development is briefly described. Planuloid formation is hypothesized as explanation for polyp-stage philopatry.


Mycologia ◽  
2008 ◽  
Vol 100 (6) ◽  
pp. 921-929 ◽  
Author(s):  
D. Wrigley de Basanta ◽  
C. Lado ◽  
A. Estrada-Torres

2019 ◽  
Vol 94 ◽  
Author(s):  
E. Palumbo ◽  
A. Servián ◽  
R. Sánchez ◽  
J.I. Diaz

Abstract We describe Hedruris dratini n. sp. (Nematoda, Hedruridae) from Hydromedusa tectifera and Phrynops hilarii in Argentina based on morphological and molecular characters. Also, we provide information about its life cycle. The new species differs from other species of the genus by possessing the excretory pore, nerve ring and deirids at equal distance from the anterior end. Additionally, H. dratini n. sp. has mammilated eggs and males possess nine pairs of caudal papillae. The subadults and adults of H. dratini n. sp and H. orestiae were characterized by sequencing the small subunit ribosomal DNA (18S). We present for the first time a life cycle of a species of Hedruris that includes an amphipod as intermediate host and a reptile as definitive host. Furthermore, we analysed the host and geographic distribution of all Hedruris species. Although the genus has a cosmopolitan distribution and parasitizes a great host diversity, the majority of species have a Gondwanian distribution, with amphibians being the preferred hosts.


Author(s):  
F. Nugnes ◽  
G. Viggiani

Anagrus lindberginae sp. n. (Hymenoptera: Mymaridae), an egg par- asitoid of the leafhopper Lindbergina aurovittata (Homoptera: Cicadellidae), is described from Italy. It is included in the atomus group of Anagrus Haliday and compared with the allied known taxa. The parasitoid’s life cycle is characterized by a long larval diapause from spring to fall, which allows for synchronization with its leafhop- per host; other biological traits of A. lindberginae on the evergreen plant Quercus ilex are discussed.


1995 ◽  
Vol 8 (5) ◽  
pp. 687
Author(s):  
Ziqing Yuan ◽  
KM Old

Phloeosporella cassiae sp. nov., which causes leaf spot in Cassia oligoclada is described and illustrated. The differences between the new species and the known species of the genus, as well as other similar fungi recorded on Cassia are discussed.


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