Method of inducing phytophthora nicotianae breda de haan bacteria to generate sporangiums and release zoospores
A technology of Phytophthora nicotianae and zoospores, which is applied in the methods of using spores, biochemical equipment and methods, microorganisms, etc., can solve the problems of bacterial contamination and difficulty in obtaining plant materials, and achieve the effect of shortening the induction period
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Embodiment 1
[0035] Example 1 Phytophthora tabacum standard strain produces sporangia and zoospores
[0036] (1) Inoculate Phytophthora nicotianae (strain number: GIM3.567, purchased from the Guangdong Microbial Culture Collection Center) on the PDA medium on a clean bench, and incubate in the dark at 27°C for 2 days.
[0037] (2) On the ultra-clean workbench, use a puncher with a diameter of 0.5 cm to punch holes at the edge of the colony, take a piece of mycelium and place it in a sterile petri dish with a diameter of 6 cm, and add a volume concentration of 20% 5mL of compound vegetable and vegetable juice of Betsy’s wild vegetables, cultured in the dark at 27°C for 2 days; then pour out the juice, replace it with 5mL of sterile compound fertilizer solution with a mass concentration of 0.1%, and place it in a light incubator with a white fluorescent lamp with a light intensity of 600Lux (Guangdong Shaoguan Taihong Medical Devices Co., Ltd. (model: LRH-250-G), cultivated under continuous ...
Embodiment 2
[0041] Embodiment 2 induces the Phytophthora nicotiana strain isolated in the fresh loofah blight sample to produce sporangia and zoospores
[0042] (1) Take a freshly-onset loofah blight specimen, and use scissors to cut out a tissue block with a size of about 2mm×5mm at the junction of disease and health.
[0043] (2) On the ultra-clean workbench, soak the tissue block in 75% alcohol for 30s, then soak and rinse in 5% sodium hypochlorite solution for 1min; then change and wash with sterilized water for 3 times. After the water was blotted dry on sterile filter paper, it was transferred to a PDA medium plate and incubated in the dark at 27°C for 4 days.
[0044] (3) After the colony grows, pick the edge mycelium block with white colony color on the ultra-clean workbench, and purify the mycelium to obtain Phytophthora nicotianae.
[0045] (4) On the ultra-clean workbench, put the purified strain in the Betsy wild vegetable compound vegetable juice with a volume concentration ...
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