The morphometry of quadrifid digestive glands in traps of three Utricularia species: Does gland size correlate with trap size?

0465747 - BÚ 2017 RIV AT eng J - Journal Article
Adamec, Lubomír
The morphometry of quadrifid digestive glands in traps of three Utricularia species: Does gland size correlate with trap size?
Phyton. Annales Rei Botanicae. Roč. 56, č. 1 (2016), s. 27-38. ISSN 0079-2047
Institutional support: RVO:67985939
Keywords : aquatic Utricularia * traps * digestive-absorptive glands
Subject RIV: EF - Botanics
Impact factor: 0.500, year: 2016

The interrelationship between the morphometric parameters of quadrifid glands in mature traps and trap length was estimated in three aquatic Utricularia species (U. vulgaris, U. australis, U. stygia). In these species, the ratio of trap length between the largest and smallest traps measured was 2.3-2.7. The total variability of width of both the long and short arms was relatively low in all species but the length of both the long and short arms was much greater; the ratio between the maximum and minimum lengths in each species was within 1.9-2.6. Linear regression models revealed significant correlations between long arm lengths and trap lengths in all species. This also applied for short arms except in U. australis. In U. vulgaris and U. australis, both the long and short arm widths correlated highly significantly with trap length, while the correlation was significant only in U. stygia short arms. In all species, the angles between the long arms did not correlate with trap length. With the short arms, the angles correlated highly significantly with trap length only in U. stygia, but not at all in the other species.
Permanent Link: http://hdl.handle.net/11104/0264187