Trapping mechanisms of carnivorous plants

Čuček, Marija (2014) Trapping mechanisms of carnivorous plants. Bachelor's thesis, Faculty of Science > Department of Biology.

[img] PDF
Restricted to Registered users only
Language: Croatian

Download (227kB) | Request a copy

Abstract

When observing plants, they seem relatively immobile, but if we carefully watch them, it is clear that plants do provide movements, and sometimes even rapid ones. Trapping mechanisms of carnivourus plants in the genera Aldrovanda, Utricularia and Dionaea, are some of examples. These mechanisms are very complex, and are developed as an adaption to environmental conditions and lack of nutrients. Trapping mechanisms of the Venus flytrap include active biochemical component and passive elastic component, but none of them are completely understood. Exact transport of K+ ions through the cell wall, and the way Venus flytrap „memoryizes“ two stimulus within 20 s, are not clear enough. The waterwheel plant deforms only her midrib during closure. That is the main diference between trapping mechanism of the Venus flytrap. Even though they originate from the same ancestor, it is still not fully understood why their mechanisms are different. All species of the genus Utricularia have suction traps. In their traps there are various microorganisms but it is not understood yet which of them are microorganisms living as commensals and which are prey used for absorption of mineral nutrients. Spontaneous firings without any apparent cause are also not yet fully clear. Many questions regarding the different mechanisms of closing traps remain unanswered leaving this field of biology with wide range of possible research.

Item Type: Thesis (Bachelor's thesis)
Supervisor: Tkalec, Mirta
Date: 2014
Number of Pages: 13
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Silvana Šehić
Date Deposited: 18 Nov 2014 12:02
Last Modified: 18 Nov 2014 12:02
URI: http://digre.pmf.unizg.hr/id/eprint/3298

Actions (login required)

View Item View Item

Nema podataka za dohvacanje citata