Cytospora rhizophorae Kohlm. & E. Kohlm (1971)

Tian, Long yan, Xu, Jin zhu, Zhao, Dan yang, Qiu, Hua long, Yang, Hua & Qin, Chang sheng, 2020, New records of Celoporthe guangdongensis and Cytospora rhizophorae on mangrove apple in China, Biodiversity Data Journal 8, pp. 55251-55251 : 55251

Cytospora rhizophorae Kohlm. & E. Kohlm (1971)

Materials

Type status: Other material. Occurrence: catalogNumber: TLY1-13; TLY2-42 ; recordedBy: C.S. Qin & L.Y. Tian; Taxon: scientificName: Cytosporarhizophorae; kingdom: Fungi; order: Diaporthales; family: Cytosporaceae; genus: Cytospora; Location: country: China; stateProvince: Guangdong; locality: Zhongshan City, Hengmen village, 113.5810°N, 22.4820°E ; verbatimElevation: 2.546 m; Identification: identifiedBy: L.Y. Tian; identificationReferences: (Kohlmeyer and Kohlmeyer 1971); Event: year: 2018; month: September; day: 26; habitat: on the twig of Sonneratiaapetala Buch.-Ham.; Record Level: language: en

Description

Pycnidial stromata ostiolated, immersed in bark, scattered, erumpent through the surface of bark, discoid, with favaginous multiple locules. Ectostromatic disc black, circular to ovoid, (300-)400-850(-950) µm in diam. Locule numerous, arranged irregularly with common walls, (100-)200-250(-350) µm in diam. Conidiophores hyaline, branched at base or not branched, thin walled, filamentous, (4.5-)6-14(-16) × 1-2 µm. Conidiogenous cells enteroblastic polyphialidic, (1.3-)2-4.5(-5.5) × 1-2.5 µm. Conidia hyaline, allantoid, smooth, aseptate, thin-walled, (3-)3.5-5(-6.1) × 1-1.5 μm (Fig. 4 ).

Notes

Cytospora rhizophorae was initially introduced as mangrove fungi on Rhizophora species ( Kohlmeyer and Kohlmeyer 1971). Two isolates from the present study, together with MUCC302 and CBS 116861, formed a distinct clade (Fig. 5 ). Additionally, the morphology observed in this study fit exactly with the primary description ( Kohlmeyer and Kohlmeyer 1971).

Figures

Figure 4. Morphology of Cytospora rhizophorae from Sonneratia apetala. A-B. Conidiomata; C-D. Transverse sections through conidiomata; E-F. Conidiophores; G-H. Conidia. Scale bars: A-B = 200 μm; C = 100 μm; D = 50 μm; E-G = 10 μm; H = 5 μm.

Figure 5. Phylogram of Cytospora from a Maximum Likelihood analysis, based on ITS sequences. MP, ML and BI bootstrap support values are shown in order. The tree is rooted with Diaporthe vaccinii. Strains in the current study are in blue.