Potato-dextrose-agar

Two isolates of FORL (rj and r ) were provided by Dr. Tello (INIA, Madrid) from diseased tomato crops grown on the Spanish Mediterranean coast (11). Both isolates were maintained as stock cultures on potato-dextrose agar... 

Figure 3.1 Alternaria alternate. Taken by phase-contrast microscopy after 2 weeks on potato dextrose agar. Bar equals 10 nm.

The colony characteristics and microscopic morphology used for the identification of dematiaceous fungi are based upon cultures that are approximately 2 weeks old and have been grown at 25 to 30°C on a medium such as potato dextrose agar or cornmeal agar. These media... 

Often will produce synanamorphs when 8,10,19 grown on either cornmeal agar or potato dextrose agar. 

Fig. 1. Trichoderma harzianum colony forms ring structures on potato-dextrose agar white feeding mycelium (right) and green sporulating mycelium (left).

Poured, sterile soybean casein digest agar (SCDA) petri plates Poured, sterile potato dextrose agar (PDA)... 

G.fujikuroi NRRL-2278 obtained from the US Department of Agriculture, maintained on potato dextrose agar (PDA) slants, and stored at 4°C. 

Each strain was received on a Czapek yeast autolysate agar plate from the culture collection. Spores were transferred to a potato dextrose agar (PDA) (Difco, Detroit, MI) plate and the PDA plates were kept at the optimal temperature for growth (Table 1). After 2 wk the strains on the PDA... 

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