Bemerkungen überDionaea muscipula Ellis
نویسندگان
چکیده
منابع مشابه
Charge induced closing of Dionaea muscipula Ellis trap.
In terms of bioelectrochemistry, Venus flytrap responses can be considered in three stages: stimulus perception, electrical signal transmission, and induction of mechanical and biochemical responses. When an insect touches the trigger hairs, these mechanosensors generate receptor potentials, which induce solitary waves activating the motor cells. We found that the electrical charge injected bet...
متن کاملActive movements in plants: Mechanism of trap closure by Dionaea muscipula Ellis.
The Venus flytrap (Dionaea muscipula Ellis) captures insects with one of the most rapid movements in the plant kingdom. We investigated trap closure by mechanical and electrical stimuli using the novel charge-injection method and high-speed recording. We proposed a new hydroelastic curvature mechanism, which is based on the assumption that the lobes possess curvature elasticity and are composed...
متن کاملAction Potentials Evoked by Light in Traps of Dionaea muscipula Ellis
At low light intensities (less than 50 /anol m 2 s ') illumination evokes transient depolarization of membrane potential in mesophyll cells of the leaf-trap of Dionaea muscipula Ellis. Darkening causes hyperpolarization approximately symmetric to the response to illumination. The amplitude as well as the rate of potential changes depend on light intensity. After exceeding a definite threshold (...
متن کاملVenus Flytrap (Dionaea muscipula Solander ex Ellis) Contains Powerful Compounds that Prevent and Cure Cancer
Chemoprevention uses natural or synthetic molecules without toxic effects to prevent and/or block emergence and development of diseases including cancer. Many of these natural molecules modulate mitogenic signals involved in cell survival, apoptosis, cell cycle regulation, angiogenesis, or on processes involved in the development of metastases occur naturally, especially in fruits and vegetable...
متن کاملOn the mechanism underlying photosynthetic limitation upon trigger hair irritation in the carnivorous plant Venus flytrap (Dionaea muscipula Ellis)
Mechanical stimulation of trigger hairs on the adaxial surface of the trap of Dionaea muscipula leads to the generation of action potentials and to rapid leaf movement. After rapid closure secures the prey, the struggle against the trigger hairs results in generation of further action potentials which inhibit photosynthesis. A detailed analysis of chlorophyll a fluorescence kinetics and gas exc...
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ژورنال
عنوان ژورنال: Oesterreichische Botanische Zeitschrift
سال: 1869
ISSN: 0378-2697,1615-6110
DOI: 10.1007/bf02113832