Trichoderma erinaceum Bissett, Kubicek & Szackacs, Can. J. Bot.

Thokala, Prameeladevi, Narayanasamy, Prabhakaran, Kamil, Deeba & Choudhary, Shiv Pratap, 2021, Polyphasic taxonomy of Indian Trichoderma species, Phytotaxa 502 (1), pp. 1-27 : 11

7. Trichoderma erinaceum Bissett, Kubicek & Szackacs, Can. J. Bot. 8: 8, 00. Figure 9

Section— Trichoderma

Description:

Colony: 7.0– 8.5 cm growth was observed in 4 days on PDA medium. White mycelium producing yellow pustules turning to dark green color with the age. The pustules uniformly spread throughout the plate leaving a concentric green ring at the center. The reverse of the plate is colorless.

Conidiophores: The main axis terminates in a septate elongation with a single phialide at its tip and fertile branches arising near the base. Conidiophore branches arising at angles of 90° or less concerning the main axis, paired or not, rebranching sparingly to produce phialides directly or at the tips of short secondary branches.

Phialides: Phialides arising from branches are solitary or in whorls of 2 or 3, straight, cylindrical, flask-shaped and swollen in the middle.

Conidia: Ellipsoidal to broadly ellipsoidal, 4.00–5.50 × 3.5–4.5 µm, green.

Chlamydospores: Chlamydospores terminal to intercalary, globose to subglobose, 8.00–13.00 µm.

Cultures examined: ITCC 7287 ( Withania somnifera rhizosphere, Delhi); ITCC 7288 (Groundnut rhizosphere, Tirupati, AP); ITCC 7289 (Soil, SUKAST, Jammu, J&K).

Diagnostic features: Conidiophores arising at 90° and ends with a single phialide with the fertile branches at the base and produce solitary and flask-shaped phialides directly on secondary branches.

Ecology and habitats: Soil, endophyte of woody tissue of Theobroma cacao in Peru.

Figures

FIGURE 9. Trichoderma erinaceum (A) Growth on PDA, (B) Pustules, (C) Reverse of the plate, (D) Conidiophore branching, (E,F) Phialide disposition, (G) Spores, (H) Chlamydospores.