The effects of leaf litter chemistry and anatomical traits on the litter decomposition rate of Quercus frainetto Ten. and Quercus cerris L. in situ
2020
Preuzimanje 🢃
Autori:
Pavlović, PavleKostić, Olga
Jarić, Snežana
Gajić, Gordana
Pavlović, Dragana
Matić, Marija
Mitrović, Miroslava
Tip dokumenta:
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt:
This paper presents the results of a one-year decomposition experiment on Quercus frainetto Ten. and Quercus cerris L. leaf litter in natural conditions. The decomposition rate constant was 0.831 yr−1 (Q. frainetto) and 0.458 yr−1 (Q. cerris). For the initial chemical composition of the oaks’ litter, differences were not found in concentrations of lignin and fats, waxes and oil fractions, but were found for water-soluble matter, hemicellulose and cellulose. Later decomposition stages indicated that lignin and fats, waxes and oil fractions influenced differences in both oaks’ litter decay rates. Ana-tomical analysis revealed differences between the oaks in leaf mesophyll and epidermis but not in the entire leaf and lower epidermis. Results after 12 months of the experiment revealed that 48.04% of the entire leaf, 53.30% of mesophyll, 32.93% of lignified upper and 47.67% of lower epidermis in Q. frainetto, and 28.70% of the entire leaf, 31.60% of mesophyll, 25.17% of lignified upper and 20.93% of lower epidermis in Q. cerris were decomposed. Reduction in leaf thickness mainly was caused by the reduction of mesophyll parenchyma, composed of easily degradable plant materials. Leaf tissues with the most recalcitrant plant materials were lignified upper epidermis, covered by a thick cuticle composed of fats and waxes, and xylem within the leaf veins
Ključne reči:
oak forest; chemical composition; ecological interactions; leaf anatomyIzvor:
Archives of Biological Sciences, 2020, 4, 72, 543-553Finansiranje / projekti:
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200007 (Univerzitet u Beogradu, Institut za biološka istraživanja 'Siniša Stanković') (RS-MESTD-inst-2020-200007)
DOI: 10.2298/ABS200902048P
ISSN: 0354-4664
WoS: 000604979700010
Scopus: 2-s2.0-85099148854
URI
https://www.serbiosoc.org.rs/arch/index.php/abs/article/view/5800/425https://radar.ibiss.bg.ac.rs/handle/123456789/4086