germ tube वाक्य
उदाहरण वाक्य
मोबाइल
- In the presence of nutrients, chlamydospores germinate by producing germ tubes that continue to grow and form mycelial masses.
- The liberated sporangia in turn can either germinate directly with a germ tube or begin to produce biflagellate motile zoospores.
- Most conidial spores do not germinate, and the few that do germinate in soil only have short germ tubes.
- The filamentous fungus " Neurospora crassa " ( bread mould ) produces CATs from conidia and conidial germ tubes.
- A conidium may form germ tubes ( germination tubes ) and / or conidial anastomosis tubes ( CATs ) in specific conditions.
- The zoospores escape from the cyst through a germ tube ~ 4 5 micrometers in diameter and 10 15 micrometers in length.
- Germ tubes give rise to appressorium which form haustorium and allow the pathogen to extract nutrients without penetrating the host s cell membrane.
- Once attached, the spore germinates by growing a germ tube and eventually locates a stoma by a touch responsive process known as thigmotropism.
- In the resistant sunflower cultivars, germination was still induced but the plant's germ tube never develops after penetration by the haustorium.
- When a conditioned seed receives a chemical signal from a host plant, it germinates, forming a germ tube which grows toward the host.
- In contrast, the fungal plant pathogen, " Colletotrichum lindemuthianum ", only produces CATs from conidia and not from germ tubes.
- Even though spores of the pathogen can germinate in sterile water, germination and germ tube growth are greatly stimulated by the addition of nutrients.
- The oospores may directly germinate into a germ tube or indirectly germinate and give rise to sporangia which then indirectly germinates and gives rise to zoospores.
- Once germinated, oospores can produce either a germ tube, which directly infects the plant, or a sporangium, which releases zoospores that infect the plant.
- Zoospores lose their flagella, become cysts, germinate and feed on the host via a germ tube, and produce more sporangia to continue the disease cycle.
- CATs and germ tubes ( germination tubes ) are some of the specialized hyphae ( long cells formed by filamentous fungal species ) that are formed by fungal conidia.
- Germination occurs over a period of approximately two hours, followed by a 2-4 day incubation period between germ tube penetration and the onset of disease symptoms.
- The tip of the germ tube divides to form an octant ( solid geometry ) of cells, and the first rhizoid grows as an extension of the original germ cell.
- It is particularly indicated for colonies of white or cream color on fungal culture, where a positive germ tube test is strongly indicative of " Candida albicans ".
- Simultaneous penetration of a wheat leaf stoma by three germ tubes of sexual airborne ascospores ( arrows ) of " Zymoseptoria tritici " that are transported over vast distances.
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