نتایج جستجو برای: تیس sorbus aucuparia l
تعداد نتایج: 618541 فیلتر نتایج به سال:
The evolution of visual warning signals is well known in animals but has received scant attention in plants. The coevolutionary hypothesis is the most influential hypothesis on warning signals in plants proposing that red and yellow leaf colours in autumn signal defensive strength to herbivores. So far, evidence in support of the hypothesis, which assumes a coevolutionary origin of autumnal lea...
To improve the biological control of white mistletoe (European mistletoe) additional detailed information on Botryosphaeria visci infection, its basic nutritional requirements, growth, and in vitro growth characteristics is needed. The objectives this study were to isolate identify fungus B. associated with Viscum аlbum from Sorbus aucuparia, provide introduction different media, test pathogeni...
The goal of this study was to analyse the effect sonoreactor dimensions on effectiveness ultrasound-assisted extraction (UAE) bioactive substances from rowan (Sorbus aucuparia L.). Sonication carried out with a VC750 Sonics processor at following amplitudes ultrasound: 12, 24, and 36 µm. frequency ultrasound 20 kHz. Extraction conducted in 2 s on–4 off pulse system. total phenolic content antio...
Upon pathogen attack, fruit trees such as apple (Malus spp.) and pear (Pyrus spp.) accumulate biphenyl and dibenzofuran phytoalexins, with aucuparin as a major biphenyl compound. 4-Hydroxylation of the biphenyl scaffold, formed by biphenyl synthase (BIS), is catalyzed by a cytochrome P450 (CYP). The biphenyl 4-hydroxylase (B4H) coding sequence of rowan (Sorbus aucuparia) was isolated and functi...
Plant-microbial interactive relations with respect to determine mycoflora of the Sorbus domestica L.--fruits, crust, leaves and pollen were studied in 2 Slovak regions. On the fruit samples the genera Alternaria, Botrytis, Cladosporium, Mucor and Penicillium occurred, on the leaves the genera Alternaria, Cladosporium and Penicillium prevailed and on crust the genera Alternaria, Cladosporium, Pe...
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