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... “Epicuticular waxes” from pine pollen and from pollen wings have been investigated. Various hydrocarbons, aldehydes, wax esters, free fatty acids and primary alcohols in the form of homologous series were identified. A noteworthy observation was the presence of a large number of unsaturated fatty acids.Although there were quantitative differences between the waxes from whole pollen and pollen wing ...
... Yellow coloration of pollen in some exceptional cases can be caused by the presence of intensely coloured flavonoids. Derivatives of herbacetin (sexangularetin) and of gossypetin (limocitrin) have been found as “yellow flavonols” in the pollen of some species of Paeonia and of Rumex. The pollen of Spinacea oleracea contains the 6-methyl ether of galetin and the quercetagetin derivatives patuletin ...
... Some snag characteristics were studied in three different Hyrcanian lowland forests. The highest snag density (38.4 stem·ha–1) was found in fully protected forests, and it was significantly higher than in selectively logged (23.7 stem·ha–1) and open access forests (8.8 stem·ha–1). The snag volume, diameter and height were also ...
... Caraway fruits contain essential oils that give caraway its characteristic aroma. This paper evaluates quantity and composition of the essential oil from the annual caraway grown in different production areas of Serbia. Experiments were conducted in three production areas: Banat, Bačka and Srem, during two years. The fruits contained 3.95% of oil on average. The highest content of essential oil wa ...
... 'Baotong' is a new strawberry cultivar developed by crossing 'Benihomalei' with 'Camarosa'. The fruit is neat, the fruit surface is flat, the taste is good, and the firmness is moderate. The largest fruit mass reaches 44.7 g. Soluble solid content accounts for 10.3%. The fruit firmness is 0.58 kg/cm2. Compared with the 'Toyonoka' and 'Benihoppe', 'Baotong' is more resistant to powdery mildew and s ...
... ‘Lapins’ sweet cherry was planted on ten cherry rootstocks in several Alpe-Adria countries (Germany, Italy, Austria, Slovenia, Croatia) in spring 1997. Tabel Edabriz, Weiroot 13, Weiroot 72, Weiroot 158, GiSelA 4, GiSelA 5, GiSelA 195/20, PiKu 4.20 = PiKu 1 and MaxMa 14 were tested and compared with F12/1. Tree vigour (canopy volume and trunk cross-sectional area), yield, yield efficiency and frui ...
... ‘Ningyu’ has been released from the breeding programme at Jiangsu Academy of Agricultural Sciences since 2010. It is a new, early fruiting and balanced aroma cultivar with anthracnose resistance, which is derived from ‘Sachinoka’ × ‘Akihime’ in 2005. Plant characterization, fruit weight and color, total titrable acidity, organic acid, sugar, ascorbic acid and antioxidant capacity were evaluated. C ...
abortion (plants); crop yield; cultivars; early development; orchards; seedlings; seeds
Abstract:
... ‘Şebin’ is a Persian walnut cultivar that originated as a seedling in Şebinkarahisar, and has become a standard in many walnut producing areas of Turkey. The popularity of ‘Şebin’ is due to its high kernel ratio, nut quality, precocity and excellent yield. The mean nut weight varied from 9.95 to 12.40 g, kernel weight from 6.25 to 7.85 g, and the kernel ratio was between 61.0 and 64%. However, fru ...
cultivars; juices; diploidy; small fruits; total soluble solids; table grapes; fruit maturity; Vitis; firmness; taste
Abstract:
... 'Tankeumchu' (Vitis sp. × V. vinifera) is a new table grape cultivar that is diploid, mid-ripening and black-fruited with large cluster. It has mean bud burst on April 24, full blooming on June 1, and fruit maturity on September 10. It has an excellent taste with abundant juice and soft firmness. The mean weight of berries is 7.0 g, and mean content of soluble solids is 18.0°Brix. 'Tankeumchu' is ...
Cajanus cajan; X-ray diffraction; chemical reactions; chemical structure; hepatoma; humans; leaves; neoplasm cells; organic compounds; spectroscopy
Abstract:
... A pair of new enantiomeric stilbene dimers, (+)- and (−)-cajanusine [(+)-1 and (−)-1], with a unique coupling pattern were isolated from the leaves of Cajanus cajan. Their structures including absolute configurations were elucidated on the basis of comprehensive spectroscopic and single-crystal X-ray diffraction analyses, as well as CD calculations. The plausible biogenetic pathway of 1 was also p ...
... Chemokines are important mediators of cell migration, and thymus and activation-regulated chemokine (TARC/CCL17) and macrophage-derived chemokine (MDC/CCL22) are well-known typical inflammatory chemokines involved in atopic dermatitis (AD). (+)-Nootkatone is the major component of Cyperus rotundus. (+)-Nootkatone has antiallergic, anti-inflammatory, and antiplatelet activities. The purpose of this ...
... In-depth understanding of interfacial atomistic structures is required to design heterointerfaces with controlled functionalities. Using density functional theory calculations, we investigate the interfacial structure of (001) SrTiO₃ (001) MgO, and characterize the stable interface structure. Among the four types of possible interface structures, we show that the TiO₂-terminated SrTiO₃ containing ...
... The carbene adduct 5 is formed from the 2-tel-luroimidazoline 4 and iodine. The X-ray structure analysis reveals a dimeric structure in the solid state. ...
... The title compound was prepared by hydrogenolytic deprotection of the corresponding Nbenzyl derivative, which had previously been synthesized by a Picted-Spengler condensation of the corresponding arylethylamine. It crystallizes from dichloromethane/methanol in the orthorhombic system, space group P2₁2₁2₁ ; a = 1305.7(2), b = 1400.3(3), c = 727.4(1) pm. Hydrogen bonds between Cl and OH and NH₂ gro ...
... (1→3)-β-d-Glucans of paramylon from Euglena gracilis were dissolved in concentrated formic acid and electrospinning was conducted using a newly designed setup. The diameter of the as-spun fibers ranged from 0.05 to 1μm, and most of the fibers were straight and aligned parallel to two arbitrary fins (electrodes). By polarized optical microscopy, we determined that the anisotropic texture of the fib ...
aldehydes; catalytic activity; chemical reactions; copper; heterocyclic compounds; ligands
Abstract:
... A cis-2-aminomethyl-5-phenylpyrrolidine, which is easily available from methyl Boc-l-pyroglutamate, was found to be a highly efficient chiral ligand for Cu(ii)-catalysed Henry reactions. Excellent yields (>90%) and superb levels of enantiocontrol (98.5–99.6% ee) were reached with aromatic, heteroaromatic, vinylic, and aliphatic aldehydes (36 examples). ...
... Trithiazylchloride, (NSCl)₃, reacts with metallic chromium, with chromium hexacarbonyl, with CrCl₃·3 thf, as well as with chromium(VI) oxide to form mixtures, in which S₄N₃⊕ [CrCl₄(N₂S₂)]⊖ can be identified as the major product. This compound reacts with tetraphenylarsonium chloride in dichloromethane to form the title compound, which we have characterized by IR spectroscopy and an X-ray crystal s ...
... Floodplains are an important feature of arid landscapes, enabling intensive agricultural activity by providing a locale with a consistent and largely predictable water source that is accessible without costly infrastructural modifications. Floodplain agriculture, although likely an important part of ancient agricultural systems in the Near East, is notoriously difficult to detect, as the dynamic e ...
... The new thioantimonate(III) (C₆N₂H₁₈)Sb₄S₇ (C₆N₂H₁₆ = 1,6-diaminohexane) was synthesized under solvothermal conditions using Sb, S and 1,6-diaminohexane (1,6-DAH). The compound crystallizes as orange needles in the triclinic space group P1̅ with lattice parameters a = 6.9834(5), b = 11.8748(10), c = 13.6588(12) Å , α = 115.248(9), β = 100.165(9) and γ = 92.568(9)°. A central SbS₄ group shares edge ...
arsenic; chemical bonding; fluorine; germanium; hydrobromic acid; phosphine; polar compounds; polymers; silicon; tin
Abstract:
... Transphosphination reactions of (Me₃M)₃P and Me₃MPH₂ compounds (M = Si, Ge, Sn; Me = CH₃) using HE(CF₃)₂ or H₂ECF₃ (E = P, As) yield derivatives of the types Me₃ME(CF₃)₂, Me₃ME(H)CF₃, and (Me₃M)₂ECF₃, respectively. The reactivity of the different systems depends on M (Si < Ge < Sn), E (P < As), and the phosphine [Me₃MPH₂ < (Me₃M)₂PH < (Me₃M)₃P]. Me₃ME(H)CF₃ compounds undergo dismutation forming (M ...