bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Distribution of the Coronary Arteries in the Angora Rabbit
Authors: Bahar S. , Ozdemir V. , Eken E. , Tipirdamaz S. 
Published: June 2007

SummaryThe aim of this study was to determine the origin, course, termination and anastomosing of the coronary arteries in Angora rabbits. Eight adult healthy male Angora rabbits were used. Coloured latex was injected into the ascending aorta. A. coronaria sinistra of the Angora rabbit had larger diameter than a. coronaria dextra. It was divided into r. proximalis atrii sinistri, r. interventricularis paraconalis and r. circumflexus sinister in six Angora rabbits as well as r. septi interventricularis in two. R. septi interventricularis that stem directly from a. coronaria sinistra in two animals and from r. interventricularis paraconalis in six was a principal vessel responsible for the septum interventriculare. R. marginis ventricularis sinistri originating from r. circumflexus sinister was the most prominent artery on the auricular surface of the heart. R. interventricularis subsinuosus was not detected in Angora rabbits examined. A. coronaria dextra, crossing the sulcus coronarius immediately after its origin, ran obliquely in direction of the sulcus interventricularis subsinuosus to supply the right portion of the heart. The ventricular and septal branches of a. coronaria sinistra and a. coronaria dextra ran subepicardially at the beginning then intramyocardially and mostly parallel to the muscle fibres as surrounded by a thin adipose tissue. Their atrial branches were seen continuously to run subepicardially.
An Immunohistochemical Study of the Distribution of Intermediate Filaments in the Ovary of the Emu (Dromaius novaehollandiae)
Authors: Madekurozwa M.‐C. 
Published: June 2007

SummaryThe immunohistochemical localization of the intermediate filaments desmin, vimentin and smooth muscle actin (SMA) in the ovary of the emu was described in the present study. The cortical region of the ovary contained developing and atretic primordial, pre‐vitellogenic and vitellogenic follicles. Vimentin immunostaining was demonstrated in the granulosa cell layer of primordial, pre‐vitellogenic and vitellogenic developing and atretic follicles. An interesting finding of the present study was the localization of SMA in fibroblasts located in the theca externa of late vitellogenic follicles. The presence of SMA in these fibroblasts suggests that they possess characteristics of smooth muscle cells.
Nectria macrospora (Wr.) Ouellette sp. nov. (=N. fuckeliana var. macrospora): Strains, Physiology and Pathogenicity, and Comparison with N. fuckeliana var. fuckeliana1
Authors: Uellette G. B. 
Published: June 2007

AbstractSeveral isolates fromg Canada and Europe of Nectria fuckeliana var. fuckeliana and of N. fuckeliana var. macrospora were compared physiologically, morphologically, and in their ability to cause cankers on Abies species.As a result, it is proposed to raise these varieties to species level, that is, Nectria fuckeliana and N. macrospora. Isolates of N. macrospora from Quebec were found to be much more virulent than the other isolates studied.
The production of rhizomorphs by Armillaria mellea from stumps
Authors: Rishbeth J. 
Published: June 2007

AbstractThe production of rhizomorphs by Armillaria mellea from stumps samples collected in East Anglia was studied: those of broad‐leaved trees produced greater yields than those of pines and, in the absence of poisoning, over a much longer period after felling. The ability of A. mellea to form rhizomorphs is often reduced after prolonged growth in pine tissues. The interaction of A. mellea and other fungi is briefly considered. Some implications of these observations for forestry practice are discussed.
Influence de ľâge des feuilles de peuplier sur la sensibilitéà Marssonina brunnea
Authors: Cellerino G. P. , Anselmi N. , Pinon J. 
Published: June 2007

AbstractInfluence of age on the susceptibility of poplar leaves to Marssonina brunnea.Investigations showed aclose relationship between the age of poplar leaves and their susceptibility to M. brunnea. The susceptibility is low during Hushing, it increases rapidly in the unfolding leaves, decreases in the mature ones, and finally rises again in the senescent leaves. This was the case both lor different clones and also for different methods of raising them.
“Top‐dying” of Norway spruce, Picea abies (L.) Karst. with special reference to Rhizosphaera kalkhoffii Bubák
Authors: Diamandis S. 
Published: June 2007

AbstractThe moisture content of green needles from healthy and diseased trees was determined as percentage of needle dry weight. Tip needles of current and second year shoots were found to have a significantly lower moisture content than needles from the base. Needles from unprotected shoots had lower values than bagged ones during the period January‐May. The lethal value for moisture content of current year needles was found to be 90–95 %.
Beech Bark Disease: A Comparison of the Disease in North America, Great Britain, France, and Germany
Authors: Houston D. R. , Parker E. J. , Perrin R. , Lang K. J. 
Published: June 2007

AbtractBeech bark disease is an often lethal malady of Fagus sylvatica and F.grandifolia. Observations in North America and recent studies in Great Britain and France support the concept that the disease complex occurs when bark, infested by the scale insect Cryptococcus fagi, is infected and killed by fungi of the genus Nectria. Comparisons of the ecology of beech bark disease, borne out by recent investigations in North America, Great Britain, France and Germany, are presented.
Resistance of Pinus densiflora and Pinus rigida × radiata to Fomes annosus
Authors: Dumas M. T. , Hubbes M. 
Published: June 2007

AbstractThe stemwood of Pinus densiflora was found to be more resistant than the stemwood of Pinus rigida × radiata in inhibiting the decaying activity and linear growth of Fomes annosus. The chemical factors responsible for the variations in resistance were extractable in chloroform. One fraction isolated from the chloroform extract of P. densiflora is responsible for its inhibition.
The influence of chemical factors on the selectivity of Pinus resinosa stumps for Fomes annosus
Authors: Hubbes M. , Lin Jui‐Yung C. 
Published: June 2007

AbstractCompounds such as resins or phenols produced by the host in response to wounding or fungal penetration may play an important role as factors of resistance against Fomes annosus. By extracting stem sections, that were kept for different intervals in a closed chamber, with different organic solvents chloroform produced the most inhibitory extractives against F. annosus. This may explain at least partially the decreasing stump selectivity for F. annosus.Three compounds were isolated from the neutral fractions of chloroform extractives from 24 days wounded wood discs which were found to be different from the compounds in normal and 12 days fractions. Spectrophotometric analyses reveal some characteristics of these isolated compounds, whereas their chemical formula and structure need further investigation.
Mise en évidence de résistances biologiques aux Pythium en sol forestier
Authors: Bouhot D. , Perrin R. 
Published: June 2007

AbstractEvidence of biological suppressiveness of Pythium in forest soils. Fifteen different forest soils were collected and studied. All of them were free of parasitic Pythium spp. although saprophytic Pythium were sometimes plentiful.After inoculation with parasitic Pythium spp., changes in inoculum potential were followed using cucumber seedlings as baits. Three kinds of behaviour were observed:– inoculum potential increased with time (conducive soil);– inoculum potential remains at a low value (tolerant soil);– inoculum potential decreased with time (suppressive soil).Two different biological mechanisms occur in suppressive soils:– opposition to colonisation by Pythium;– development of Pythium occurred but the inoculum potential was not expressed.
Ultrastructure of Ceratocystis ulmi.1 II. Ascogenous system and ascosporogenesis
Authors: Jeng R. S. , Hubbes M. 
Published: June 2007

AbstractThe fine structure of ascogonium, ascogenous hyphae and subsequent ascosporogenesis in Ceratocystis ulmi are studied with electron microscopy. The findings are compared and discussed with those reports on other Ascomycetes.
Kraft mill gases damage Douglas‐fir in western Montana
Authors: Carlson C. 
Published: June 2007

AbstractDouglas‐fir (Pseudotsuga menziesii) in western Montana, U.S.A., were seriously damaged by sulfur emissions from a nearby Kraft pulp mill. Foliage loss, needle symptoms, total sulfur of needles, and airborne reactive sulfur were greatest near the Kraft mill. Needle autopsies confirmed the diagnosis.
Prüfung von Douglasien‐Herkünften auf Resistenz gegen Rhabdocline pseudotsugae in Infektionsversuchen
Authors: Stephan B. R. 
Published: June 2007

Abstract Testing of Douglas‐fir provenances for resistance against Rhabdocline pseudotsugae by infection trials. Sixten Douglas fir provenances belonging to the three groups green, grey and blue, were tested for their resistance against the needle cast pathogen Rhabdoclline pseudotsugae in artificial infection trials.
Feinwurzeluntersuchungen und biotische Aktivitäten in der Rhizosphäre vom Tannensterben befallener Abies alba‐Bestände
Authors: Blaschke Von H. 
Published: June 2007

Abstract Studies of fine roots and biotic activities in the rhizosphere of silver firs affected by dieback. The studies were focused on the fine roots in order to describe mycorrhizal associations in their natural habitat and especially any pathological symptom. Some biotic activities of short root complexes and of the perirhizosphere were determined. In the soil horizons enzymatic activities were markedly influenced by fine roots. A positive correlation between ectomycorrhizal short roots and the enzyme content has been observed.
Behaviour of an Armillaria in some Eucalyptus obliqua – Eucalyptus regnans forests in Tasmania and its role in their decline
Authors: Kile G. A. 
Published: June 2007

AbstractAn undescribed but native species of Armillaria is a secondary pathogen in declining stands of Eucalyptus obliqua and Eucalyptus regnans in southern Tasmania. The fungus is almost ubiquitous in healthy and diseased forest and occurred epiphytically or parasitically in local lesions on the roots of 74 % of eucalypts partially excavated in 15 forest stands, 25–75 years of age. The fungus infected 85 % of logging stumps and 64 % of fire killed trees. Although the fungus only infected the sapwood of the eucalypts, it survived in infected stumps for at least 70 years. Rhizomorphs initiated most infections but did not grow freely through the soil. Pathogenicity tests confirmed that the Armillaria is a weak pathogen.
The use of phytopathometric techniques in forest protection
Authors: Ofong A. U. 
Published: June 2007

AbstractTechniques of plant disease assessment appropriate For measuring forest tree diseases are considered taking cognizance of the heterogenous and structural complexities of the forest. Strategies proposed for disease management in forest reserves and plantations of developing countries are as follows: direct assay of plant pathogens on sites for plantation establishment, aerial surveys of large and extensive plantations in combination with ground sample surveys and disease predictions using climate and biological data.
Inter‐relations between MLO in spiked sandal and infected collateral hosts
Authors: Nayar R. 
Published: June 2007

AbstractMLO in spiked sandal, spiked Zizyphus, Dodonaea and other hosts are closely related enough to be called strains; field evidence suggests adaptation of the organism before infecting each other while serological evidence indicates close similarities. Associated hosts are therefore important in the control of spike disease in sandal due to the transmission of disease from diseased associated hosts to sandal within a period of time. Spike disease which was confined to sandal forests of Karnataka and Tamil Nadu has now spread to Kerala State lor the first time in 1980.
Rhizographische Untersuchungen an Feinwurzelsystemen aus verschiedenen Abies alba‐Beständen Bayerns
Authors: Blaschke H. 
Published: June 2007

AbstractRhizographic investigation of fine root systems of silver fir stands in Bavaria. Fine root samples were taken in topsoil and subsoil of silver fir stands affected by dieback. The results of the rhizographic investigation show that the mycorrhizal rootlet formation and the fine root distribution was markedly dependent on soil structural characteristics. The features of mycorrhizal rootlet development stages and decomposing stages and fine‐root regeneration in affected trees were different from those in healthy trees, which showed an abundance of living fine‐root ramifications.
Gremmeniella abietina (Scleroderris lagerbergii), a primary parasite in a Norway spruce die‐back
Authors: Barklund Pia , Rowe Janet 
Published: June 2007

Abstract Gremmeniella abietina is a primary parasite in shoots of Norway spruce (Picea abies). The occurrence and survival of the fungus in diseased shoots, and those showing renewed or adventitious growth after disease symptoms, were examined, and the pathogenic potential is discussed.
The effect of season on infection of Pinus radiata by Dothistroma pini
Authors: Gilmour J.W. 
Published: June 2007

AbstractBy exposing Pinus radiata seedlings to Dothistroma pini infection in the field over a period of 3 years, the main infection period in the central North Island of New Zealand was found to be from November to February (late spring to late summer). No infection was obtained when the air temperature was below 7°C or when the leaf wetness period was less than 10 hours.
Etude de l'émission des ascospores du Lachnellula willkommii (Hartig) Dennis dans l'Est de la France
Authors: Sylvestre‐Guinot Gilberte 
Published: June 2007

AbstractStudy on the ascospore release of Lachnellula willkommii (Hartig) Dennis in East of France. We studied the airborne ascospores of Lachnellula willkommii (Hartig) Dennis during 2 years in the Arboretum ?Amance (Meurthe‐et‐Moselle, 15 km north‐east of Nancy) in a plot of Larix decidua Miller. Lachnellula willkommii releases, all the year, ascospores which are able to germinate. Ascospore discharge is related closely to rainfall, and temperature has an effect, only when daily mean temperature is negative (no emissions).
SO2‐induced ethylene evolution of forest tree foliage, and its potential use as stress‐indicator
Authors: Bucher J. B. 
Published: June 2007

AbstractSO2‐exposures induced in forest trees increased ethylene evolution of the foliage before visible symptoms appeared. The ethylene, as well as its precursor ACC, showed after necrosis a cyclic pattern. Stress‐ethylene may therefore serve as an indicator in controlled experiments, but it does not seem suitable under field conditions.
Further studies on the activity of cell wall degrading enzymes of aggressive and non‐aggressive isolates of Ophiostoma ulmi
Authors: Svaldi R. , Elgersma D. M. 
Published: June 2007

Abstract In vitro activity of glycosidases and exo‐glycanases in 10 aggressive and 10 non‐aggressive isolates of Ophiostoma ulmi were compared. Enzyme preparations of aggressive isolates released more arabinose and xylose from cell walls of elm wood than those of non‐aggressive isolates. Significantly more rhamnose was released as well by enzyme preparations of aggressive isolates, although some of non‐aggressive isolates released comparable amounts.
The chemical composition of the monoterpene fraction in wounded wood of Picea abies and its significance for the resistance against wound infecting fungi
Authors: Schuck H.J. 
Published: June 2007

AbstractThe wood of Picea abies reacts to injuries with an alteration of the terpene fraction in the resin. This fact may play a role in the host‐parasite interaction. The significance for resistance against wound infecting fungi is discussed.
Fungi infecting Pinus sylvestris needles of various ages
Authors: Kowalski T. 
Published: June 2007

AbstractThe studies were carried out in three 8–11 year old stands of Pinus sylvestris in Southwestern Poland. They included the isolation of fungi from infection spots which were sampled after 1, 1, 5 and 2, 5 years on living needles developed in 1978 on lower and upper branches of tree crowns. There were 28 fungal species isolated from such needles. An attempt was made to evaluate the role of the 5 most numerous species in causing needle cast of Pinus sylvestris.
Vorkommen von Pilzen in durch Luftverunreinigung geschädigten Wäldern im Oberschlesischen und Krakauer Industriegebiet
Authors: Kowalski T. 
Published: June 2007

AbstractFungi occurring in forest injured by air pollutants in the Upper Silesia and Cracow industrial Regions. IX. Mycoflora on Quercus robur L. and Q. rubra L. located in a zone with medium‐high air pollution damage. Results are presented after three years of investigations concerning fungi which are implicated in diseases and dying of 6–8 year‐old Q. robur and Q. rubra, which are used to reforest old Pinus sylvestris L. stands previously damaged by air pollution. 24 and 36 fungal species were identified on the above‐ground parts of Q. robur and Q. rubra, respectively. The role of the following fungi in the disease and dying processes has been described in detail. Amphiporthe leiphacmia, Colpoma quercinum, Fusicoccum quercus, Pezicula cinnamomea and Phomopsis quercella. Pathological activity of these fungi and the intensification of dying of both oak species was presented according to the pre‐reforestation treatments.
Armillaria root rot: Influence of soil nutrients and pH on the susceptibility of conifer species to the disease1
Authors: Singh Pritam 
Published: June 2007

AbstractSeedlings growing on soil with nutrient deficiency and a lower pH were smaller and less vigorous than the seedlings growing on non‐deficient soil with a comparatively higher pH. A higher percentage of roots and seedlings were infected and more seedlings died on soil with nutrient deficiency and a lower pH than on non‐deficient soil with a higher pH. Non‐vigorous seedlings also contacted infection earlier and showed more mycelial growth than the vigorous seedlings. Roots of vigorous seedlings showed more resinosis and callus formation, indicating resistance during the establishment of the fungus on the host. Alterations in the level of nutrients in vigorous and non‐vigorous infected seedlings were generally similar.
Studies in Forest Pathology
Authors: Chakravarty P. , Mishra R. R. 
Published: June 2007

AbstractA survey for the parasitic alga. Cephaleuros virescens Künze in relation to its seasonal distribution in different forest types has been done. The alga was absent in gymnosperms and was common in angiosperms. The disease severity was more in summer and the rainy season and absent in winter, Combretum decandrum was found to be most susceptible to this parasite alga. Altogether 49 hosts were recorded out of which 26 were new host records. Healthy leaves contain higher amounts of total nitrogen and total phenol, whereas in algal infected leaves the amounts of total sugar, total amino acid and dry weight were higher.
Responses of Sitka spruce of different genetic origins to inoculation with Heterobasidion annosum: lesion lengths, fungal growth and development of the lignosuberized boundary zone
Authors: Bodles W. J. A. , Beckett E. , Woodward S. 
Published: June 2007

SummaryThree genetically distinct groups of Sitka spruce, open‐pollinated Queen Charlotte Island provenance, A13 selected seed and M0044 half‐sib mixture, were wounded alone or wounded and inoculated with Heterobasidion annosum sensu stricto on the lower stems. Growth of the pathogen and lesion formation was compared in the three genetic groups after treatment. No differences in the rate of colonization of the three genetic groups were observed over a 40 day period; lesion lengths in the bark and sapwood correlated closely. Moreover, lesions were considerably longer in inoculated plants than in those which were wounded only. No correlations were found within or between host genetic groups in the numbers or total areas of resin canals present in the first 18 mm from the wound in bark tissues for the three host genetic groups. Formation of the ligno‐suberized boundary zone (LSZ), however, was inhibited in the bark of inoculated plants, being first detected later and at a greater distance from the wound/inoculation point in the presence of H. annosum than in plants that were wounded only. Thickness of the suberin cell layers within the LSZ of M0044 plants was greater in wounded and inoculated, than in wounded only plants. The significance of these findings in relation to detecting spruce genotypes potentially resistant to H. annosum is discussed.
The Occurrence and Characterization of New Recombinant Isolates of PVY Displaying Shared Properties of PVYNW and PVYNTN
Authors: Chikh Ali M. , Maoka T. , Natsuaki K. T. 
Published: June 2007

AbstractIsolates of Potato virus Y (PVY), collected in Syria, induced vein necrosis in tobacco but reacted to PVYO monoclonal antibody, and were therefore classified as PVYNW (or PVYN:O). The possible recombinant points within the genome were checked using a previously reported multiplex RT‐PCR. These isolates were categorized in two groups according to recombinant points. Isolates with one recombinant point at the HC‐Pro/P3, identical to previously reported PVYNW (or PVYN:O), were designated as group 1. However, the majority of Syrian PVY isolates showed two recombinant points at both HC‐Pro/P3 and 6K2/NIa, revealing a new genomic recombination pattern that had never been reported for PVYNW (or PVYN:O), hereafter referred to as group 2. Further characterizations showed that isolates of group 2 had an additional recombinant point at the N‐terminal of the coat protein gene (CP) of their genome. Based on the bioassay on tobacco, serological and molecular studies, these isolates showed shared characteristics of both PVYNW and the recombinant PVYNTN, making it difficult to include them in any of these variants. We propose them as new isolates of PVYN strain, and label them PVYSYR (SYR is from Syria, the country of origin).
The long‐term efficacy of Helicobacter pylori eradication therapy in patients with idiopathic thrombocytopenic purpura
Authors: Satake Masaaki , Nishikawa Jun , Fukagawa Yuki , Akashi Keiko , Okamoto Takeshi , Yoshida Tomoharu , Hirano Atsuyoshi , Maetani Noboru , Iida Youzou , Sakaida Isao 
Published: June 2007

AbstractBackground and Aim:  A beneficial effect of Helicobacter pylori (H. pylori) eradication in patients with H. pylori‐positive idiopathic thrombocytopenic purpura (ITP) has been reported by several investigators; however, it was not clear whether the recovered platelet count after H. pylori eradication was maintained for a long period.Method:  Thirty‐eight ITP patients who were examined for H. pylori infection were assessed. H. pylori‐positive patients received a standard antibiotic therapy for H. pylori eradication. We investigated the long‐term effect of H. pylori eradication on platelet recovery in patients with H. pylori‐positive ITP.Results:  Of the 38 ITP patients, 26 (68.4%) were positive for H. pylori. The response rate of platelet recovery was 56.5% (13/23 patients). Twelve patients showed complete response (CR) and one showed partial response (PR). The mean platelet counts 6 months after eradication significantly increased from 31 × 109/L to 129 × 109/L in 23 H. pylori‐eradicated patients (P < 0.001). The median platelet counts of responders 1, 2, 3, and 4 years after eradication were 168 × 109/L (n = 10), 193 × 109/L (n = 9), 168 × 109/L (n = 7), and 243 × 109/L (n = 4) after a mean follow‐up of 25.8 months.Conclusion:  Eradication therapy for H. pylori‐positive patients with ITP was effective and a favorable effect was maintained for long periods.