An anaerobic, mesophilic, sporeforming, xylanolytic bacterium was isolated from decayed Pinus patula wood chips. The cells of this organism were gram-negative rods, had peritrichous flagella, and formed terminal round endospores which distended the cell wall. Xylan, cellobiose, fructose, glucose, maltose, mannose, melezitose, raffinose, rhamnose, salicin, sucrose, and xylose were utilized. The ...

Fusarium root rot, caused by Fusarium oxysporum schl. f. sp. pini (Hartig) Snyder & Hansen, causes severe losses to some species of conifers even though beds are fumigated with methyl bromide-chloropicrin (3:2) the autumn before spring seeding. Benomyl (methyl-l-(butylcarbamoyl)-2-benzimidazole carbamate) at ll.2 kg a.i./ha or captan (N-trichloromethylthio-4cyclohexene-l,2-dicaboximide) at 7.3 ...

Pinidine is the main constituent of Pinus sabiniana and related plant species as determined, along with its chemical structure, by Tallent and co-workers over 40 years ag0.1 The complete stereochemistry of pinidine was unambiguously established by Hill to be la, usmg chemical and spectroscopic methods.2 Very recently, further work on the pinidine alkaloid contents of pine (Pinus) and spruce (Pi...

Partial cambial mortality is a growth form that is characteristic of Pinus aristata trees. To better elucidate their cambial death pattern, tree size and aspect of cambial death data were gathered from three Pinus aristata forests in central Colorado, USA. Stripping frequency tended to be higher for larger diameter classes. Partial cambial mortality exhibits significant directionality within ea...

In this study, phenolic content of Pinus brutia’s bark was examined using an ultra-performance liquid chromatography tandem mass spectrometry with electrospray ionization source (UPLC-ESI-MS/MS) working in multiple reaction monitoring mode. Ultrasonic extraction method with 50% ethanol solution was used for the extraction of bark. The bark of Pinus brutia consisted of 15 compounds: gallic acid,...

Leptographium spp. are commonly associated with bark beetles and weevils (Coleoptera: Curculionidae), and some are important tree pathogens. In a recent survey of diseases and insect pests of conifer trees in Bhutan, the root collar weevil, Hylobitelus chenkupdorjii was found girdling young Himalayan blue pine (Pinus wallichiana) trees in Central Bhutan. Intensive wood staining and a Leptograph...

The adsorption characteristics of methylene blue (MB) onto needles of Pinus sylvestris L., an unconventional bio-adsorbent, were investigated. Maximum removal of MB was found to occur at initial pH 5. Adsorption capacity increased from 84.46 to 99.73 mg/g with an increase in temperature from 20 to 45°C at 200 mg/L of initial MB concentration. Adsorption isotherms were modeled with the Langmuir,...