Alternaria vignae C. X. Huang & J. X. Deng 2022, sp. nov
| Autor: | Huang, Cheng Xin, Liu, Feng Yin, Gou, Ya Nan, Deng, Jian Xin, Li, Mei Jia |
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| Rok vydání: | 2022 |
| Předmět: | |
| DOI: | 10.5281/zenodo.6977078 |
| Popis: | Alternaria vignae C. X. Huang & J. X. Deng sp. nov. Fig. 2b–j MycoBank: 843124 Type— China, the Inner Mongolia Autonomous Region, Hohhot City, the farm of Inner Mongolia Agricultural University, from leaves of Vigna unguiculata, 20 Aug, 2017, J. X. Deng, YZU-H-009 (holotype), ex-type culture YZU 171714. Etymology:—In reference to the host genus name, Vigna unguiculata Descriptions:— Colony on PDA, light yellow in the center, white at the edge, hyphae flocculent, sulfur yellow to pure yellow in reverse, 39-47 mm in diam. after 7 days at 25 ° C in darkness (Fig. 2b). Conidiophores smooth, straight or curved, 42-130 × 4-6 μm in size, with 2-9 transverse septa. Conidiogenous cells clavate, slightly enlarged at apex, 6-19 × 4-6 μm, sometimes branched to produce another conidium (Fig. 2 e-f). Conidia usually solitary or in a chain with two units (Fig. 2 c-d). On V 8 A, beakless conidia long elliptical body, with a size range of 46-67 × 13-17 μm, 5-8 transverse septa and 1-2 longitudinal septa; short blunted beak (16-94 × 2-4 μm) conidia obclavate and narrow-to broad-ellipsoid, with a size range of 45-76 × 12-20 μm, 5-8 transverse septa and 1-2 longitudinal septa; long filiform beak (100-150 × 2-3 μm) conidia with, a size range of 53-63 × 15-18 μm, 6-8 transverse septa and 1-3 longitudinal septa (Fig. 2 j-l). On PCA, beakless conidia, 43-94 × 15-31 μm in size, with 4-8 transverse septa and 0-4 longitudinal septa; short blunted beak (13-96 × 2-4 μm) conidia, 50-75 × 14-32 μm in size, with 5-8 transverse septa and 0-5 longitudinal septa; long filiform beak (114-324 × 2-4 μm) conidia, 49-83 × 15-30 μm in size, with 5-9 transverse septa and 1-5 longitudinal septa (Fig. 2 g-i). Materials examined:— China, the Inner Mongolia Autonomous Region, Hohhot City, the farm of Inner Mongolia Agricultural University, from leaves of Vigna unguiculata, 20 Aug, 2017, J. X. Deng, YZU-H-009 (holotype), ex-type culture YZU 171714, living cultures YZU 171715. Notes:—Morphologically, it is quite similar to A. helianthiinficiens based on conidial morphology (Table 2). The new species produces shorter filiform beak than A. helianthiinficiens on V 8 A. Except that, there are few conidial evidences to indicate that it is a new species. However, Alternaria vignae can be readily separated with A. helianthiinficiens based on the multigene sequence analyses of ITS, GAPDH, RPB 2 and TEF 1. Published as part of Huang, Cheng Xin, Liu, Feng Yin, Gou, Ya Nan, Deng, Jian Xin & Li, Mei Jia, 2022, Alternaria vignae sp. nov. (Ascomycota: Pleosporaceae) from Vigna unguiculata in China, pp. 281-290 in Phytotaxa 556 (3) on pages 286-287, DOI: 10.11646/phytotaxa.556.3.4, http://zenodo.org/record/6972874 |
| Databáze: | OpenAIRE |
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