Pilobolus crystallinus: Difference between revisions
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Pilobolus crystallinus is a fungus belonging to the mucorales order and according to Wikipedia it is also referred to as the “Dung Cannon” or the “Hat Thrower” because these fungus are found in the feces of herbivorous animals and they grows 2-4 centimeters tall but they have pressure in their vesicle which allows them to shoot their spores 2 meters away reaching speed of about 0-45mph during the first millimeter of travel. This fungus grows under the surface where oxygen concentration is low because oxygen prevents radial growth of its hyphae. McVickar and Ootaki et al. has divided the development of pilobolus crystallinus into six stages. In the first stage there is elongation of the sporangiophore at the apex without rotation which leads to the second stage where a sporangium develops from the sporangiophore. In the third stage no growth occurs and in the fourth stage a subsporangial vesice can be seen expanding under the sporangium. Stage five spore maturation occurs and the hypha region below the subsporangial vesicle elongates. In the last stage, stage six the subsporangial vesicle bursts and the sporangium are releases into the air. | |||
This is a time lapse video pilobolus crystallinus development which was documented by Dave Kalb and Kent Loeffler from Cornell University | |||
[http://www.plantpath.cornell.edu/PhotoLab/TimeLapse2/Pilobolus1_credit_FC.html] | [http://www.plantpath.cornell.edu/PhotoLab/TimeLapse2/Pilobolus1_credit_FC.html] |
Revision as of 01:13, 22 April 2009
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Pilobolus crystallinus | ||||||||||||||
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Scientific classification | ||||||||||||||
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Binomial name | ||||||||||||||
Pilobolus crystallinus var. crystallinus (F.H. Wigg.)Tode(1784) |
Description and significance
Pilobolus crystallinus is a fungus belonging to the mucorales order and according to Wikipedia it is also referred to as the “Dung Cannon” or the “Hat Thrower” because these fungus are found in the feces of herbivorous animals and they grows 2-4 centimeters tall but they have pressure in their vesicle which allows them to shoot their spores 2 meters away reaching speed of about 0-45mph during the first millimeter of travel. This fungus grows under the surface where oxygen concentration is low because oxygen prevents radial growth of its hyphae. McVickar and Ootaki et al. has divided the development of pilobolus crystallinus into six stages. In the first stage there is elongation of the sporangiophore at the apex without rotation which leads to the second stage where a sporangium develops from the sporangiophore. In the third stage no growth occurs and in the fourth stage a subsporangial vesice can be seen expanding under the sporangium. Stage five spore maturation occurs and the hypha region below the subsporangial vesicle elongates. In the last stage, stage six the subsporangial vesicle bursts and the sporangium are releases into the air. This is a time lapse video pilobolus crystallinus development which was documented by Dave Kalb and Kent Loeffler from Cornell University