INITIAL SYMPTOMS OF SOUR CHERRY YELLOWS AND NECROTIC RING SPOT OBTAINED BY GRAFT INOCULATION AT OR NEAR BLOSSOM TIME

1963 ◽  
Vol 43 (4) ◽  
pp. 569-574
Author(s):  
T. R. Davidson
Keyword(s):  
Sour Cherry ◽  
Initial Symptom ◽  
Full Bloom ◽  
Bloom Period ◽  
Initial Symptoms ◽  
Symptom Patterns ◽  
Ring Spot

The ranges of initial symptom patterns and types occurring in nature were duplicated by graft inoculations made during the 4-week period beginning with full bloom. Nearly all trees inoculated at full bloom developed shock a year later with the inoculated branch either symptomless or with mild etch or mottle. Some trees inoculated with cherry yellows near the end of the bloom period developed a general shock. These patterns were seen in 74 per cent of the naturally infected trees observed from 1957 to 1961. Bud inoculation after petal fall resulted in general secondary symptoms of etch or mottle. In the field, 24 per cent of the trees observed were of this sort. Other symptom patterns were observed both in the field and in inoculation tests but these occurred infrequently.Most trees that were inoculated before full bloom showed symptoms on the inoculated branch the same year, and on the remainder of the tree the following year. However, this phenomenon was not observed in the orchards.

SYMPTOMS OF SOUR CHERRY YELLOWS AND NECROTIC RING SPOT IN RELATION TO TIME OF INOCULATION

1959 ◽  
Vol 39 (4) ◽  
pp. 431-436 ◽  
Author(s):  
T. R. Davidson ◽  
J. A. George
Keyword(s):  
Sour Cherry ◽  
The Other ◽  
Spot Virus ◽  
Growing Seasons ◽  
Initial Symptoms ◽  
Symptom Patterns ◽  
Ring Spot ◽  
Rate Of Movement ◽  
Cherry Trees

Each month throughout the growing seasons of 1954 and 1955 two pairs of virus-free Montmorency sour cherry trees were inoculated by budding or patch grafting, one pair with cherry yellows and the other with necrotic ring spot virus. Shock symptoms induced by the two viruses were indistinguishable except that growth was retarded more severely and longer with yellows than with ring spot. However, the type and distribution of initial symptoms varied with the time of inoculation. Four symptom patterns were distinguished, and each was associated with an inoculation period. Seasonal symptom variations also revealed that the rate of movement of the yellows virus differed from that of the ring spot virus.

scholarly journals Impact of APOE ε4 genotype on initial cognitive symptoms differs for Alzheimer’s and Lewy body neuropathology

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Jagan A. Pillai ◽  
James Bena ◽  
Aaron Bonner-Jackson ◽  
James B. Leverenz
Keyword(s):  
Lewy Body ◽  
Statistical Significance ◽  
Carrier Status ◽  
Initial Symptom ◽  
Cognitive Symptoms ◽  
Clinical Dementia Rating ◽  
Apoe Ε4 ◽  
Initial Symptoms ◽  
Adjusted Model ◽  
The Impact

Abstract Background APOE ε4 carrier status is known to increase odds of amnestic presentations with Alzheimer’s pathology. It is unknown how APOE ε4 carrier status impacts odds of specific initial cognitive symptoms in the presence of Lewy body pathology. Here we evaluate the impact of APOE ε4 genotype on initial cognitive symptoms among those with Alzheimer’s disease pathology (ADP) and Lewy-related pathology (LRP). Methods A retrospective cohort study of 2288 participants with neuropathology confirmed ADP or LRP in the National Alzheimer’s Coordinating Center database, who had initial cognitive symptoms documented and had a Clinical Dementia Rating-Global (CDR-G) score ≤ 1 (cognitively normal, MCI, or early dementia). Unadjusted and adjusted logistic regression models taking into account age at evaluation, sex, and education examined the relationship between APOE ε4 genotype and initial symptoms (memory, executive, language visuospatial) among ADP with LRP and ADP-LRP groups. Results One thousand three hundred three participants met criteria for ADP alone, 90 for LRP alone, and 895 for co-existing ADP and LRP (ADP-LRP). Younger age increased odds of non-amnestic symptoms across all three groups. In the adjusted model among ADP, APOE ε4 carriers had higher odds of amnestic initial symptoms 1.5 [95% CI, 1.7–2.14, p = 0.003] and lower odds of initial language symptoms 0.67 [95% CI, 0.47–0.96, p = 0.03] than non-carriers. The odds for these two symptoms were not different between ADP and mixed ADP-LRP groups. Female sex and higher education increased odds of initial language symptoms in the ADP group in the adjusted model. In the unadjusted model, APOE ε4 carriers with LRP had a higher odds of visuospatial initial symptoms 21.96 [95% CI, 4.02–110.62, p < 0.0001], while no difference was noted for initial executive/attention symptoms. Among LRP, the odds of APOE ε4 on amnestic symptom was not significant; however, the interaction effect evaluating the difference in odds ratios of amnestic symptom between ADP and LRP groups also did not reach statistical significance. Conclusions The odds of specific initial cognitive symptoms differed between ADP and LRP among APOE ε4 carriers compared to non-carriers. The odds of initial amnestic symptom was higher among ADP APOE ε4 carriers and the odds of visuospatial initial symptom was higher with LRP APOE ε4 carriers. This supports the hypothesis that APOE ε4 differentially impacts initial cognitive symptoms together with underlying neuropathology.

scholarly journals Effect of boron nutrition on nutrient uptake and fruit quality of tart cherry in Eastern Hungary

2011 ◽  
Vol 17 (1-2) ◽  
Author(s):  
P. T. Nagy ◽  
J. Nyéki ◽  
M. Soltész ◽  
T. Szabó ◽  
Z. Szabó
Keyword(s):  
Nutrient Uptake ◽  
Fruit Quality ◽  
Foliar Application ◽  
Sour Cherry ◽  
Early Spring ◽  
Prunus Cerasus ◽  
Tart Cherry ◽  
Full Bloom ◽  
Year Effect

Effect of the foliar boron (B) application on nutrient uptake and fruit quality of tart cherry (Prunus cerasus L.) was investigated from 2008 to 2009 on mature four favourite Hungarian tart cherry cultivars like ‘Oblacsinszka’, ‘Érdi bôtermő’, ‘Újfehértói fürtös’ and ‘Petri’. Tart cherry trees grown in Eastern Hungary (Újfehértó) on an acidic sandy soil with low B content. Trees were treated with B by foliar application (0.5% B) at full bloom and untreated with B served as a control. B sprays strongly affected on B content of inflorescences. However, B sprays had no consistent effect on summer leaf B status. In our experiment stronger year effect was observed at leaf B status than flower B status. The effectiveness of early spring boron applications are limited and mostly affected the flower B status only. Moreover, treatments had inconsistent effect on studied fruit inner parameters. Monosaccharides, vitamin C and organic acid contents of sour cherry were stronger affected by cultivars than applied treatments.

scholarly journals Bronchiolitis Obliterans Organizing Pneumonia as an Initial Presentation of Systemic Lupus Erythematosus: A Rare Case Report and Literature Review

2016 ◽  
Vol 2016 ◽  
pp. 1-3 ◽  
Author(s):  
Hung-Ping Wang ◽  
Chun-Ming Chen ◽  
Yih-Yuan Chen ◽  
Wei Chen
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Lupus Erythematosus ◽  
Bronchiolitis Obliterans ◽  
Respiratory Illness ◽  
Initial Symptom ◽  
Organizing Pneumonia ◽  
Systemic Lupus ◽  
Bronchiolitis Obliterans Organizing Pneumonia ◽  
Radiologic Findings ◽  
Initial Symptoms

The etiology of bronchiolitis obliterans organizing pneumonia (BOOP) remains controversial. While it has been reportedly associated with several connective tissue disorders, there are only rare reports of BOOP associated with systemic lupus erythematosus (SLE). Herein, we report a 56-year-old female patient who presented with dyspnea on exertion, cough, fever, and joint pain of her left wrist and fingers as initial symptoms. Laboratory tests revealed positivity for anti-nuclear antibody, anti-Ro, and anti-double strand DNA antibody. In this case, the patient with SLE had respiratory illness as the initial symptom due to BOOP in the absence of clear etiology. The diagnosis of BOOP was confirmed by thoracic surgery biopsy. Her respiratory symptoms and radiologic findings significantly improved following prednisolone treatment.

Headache as the Initial Manifestation of Acute Aortic Dissection Type A

Cephalalgia ◽  
1998 ◽  
Vol 18 (8) ◽  
pp. 583-584 ◽  
Author(s):  
C Stöllberger ◽  
J Finsterer ◽  
C Fousek ◽  
FR Waldenberger ◽  
H Haumer ◽  
...  
Keyword(s):  
Chest Pain ◽  
Aortic Dissection ◽  
Initial Symptom ◽  
Thoracic Pain ◽  
Initial Manifestation ◽  
Initial Symptoms ◽  
Rare Differential Diagnosis ◽  
History Of ◽  
Diastolic Murmur ◽  
Base Of The Skull

The most common initial symptom of aortic dissection is chest pain. Other initial symptoms include pain in the neck, throat, abdomen and lower back, syncope, paresis, and dyspnoea. Headache as the initial symptom of aortic dissection has not been described previously. A 61-year-old woman with a history of migraine and arterial hypertension developed continuous bifrontal headache. Two hours later, right-sided thoracic pain and a diastolic murmur were suggestive of aortic dissection that was confirmed by echocardiography and subsequent surgery. The dissection commenced in the ascending aorta and involved all cervical arteries until the base of the skull. Headache as the initial manifestation of aortic dissection was assumed due to either vessel distension or pericarotid plexus ischemia. Aortic dissection has to be considered as a rare differential diagnosis of frontal headache, especially in patients who develop aortic regurgitation or chest pain for the first time.

Studies on the fruit thinning effect of N.A.A. and some carbamates on Jonathan and Delicious apples

1975 ◽  
Vol 15 (74) ◽  
pp. 424
Author(s):  
N Veinbrants
Keyword(s):  
Fruit Set ◽  
Full Bloom ◽  
Time Of Application ◽  
Fruit Thinning ◽  
Bloom Period ◽  
Series Of Experiments ◽  
Thinning Effect

In a series of experiments in Victoria a single spray of the fungicide thiram applied shortly after full bloom reduced fruit density highly significantly on Jonathan and Delicious apples, but resulted in insufficient thinning. The fungicide Dithane M-45 caused mild thinning and the fungicide Dikar had no effect on fruit set when applied during post-bloom period on Jonathan apples. Applications of the insecticide carbamult applied 16, 23 and 32 days after full bloom reduced fruit density highly significantly and to about the extent as N.A.A. applied 16 days after full bloom on Jonathan apples. Carbamult caused the same degree of thinning irrespective of time of application. N.A.A. and carbamult resulted in adequate fruit thinning.

PURIFICATION AND ELECTRON MICROSCOPY OF VIRUSES CAUSING CHERRY YELLOWS AND RELATED DISEASES

1956 ◽  
Vol 34 (1) ◽  
pp. 86-103 ◽  
Author(s):  
R. S. Willison ◽  
M. Weintraub ◽  
J. D. Ferguson
Keyword(s):  
Particle Diameter ◽  
Potassium Cyanide ◽  
Sour Cherry ◽  
Single Mode ◽  
Amyl Alcohol ◽  
Differential Centrifugation ◽  
Sodium Bisulphite ◽  
Green Ring ◽  
Ammonium Sulphate Precipitation ◽  
Ring Spot

Virus entities associated with necrotic ring spot, yellows, and green ring mottle of sour cherry, tatter leaf of sweet cherry, prune dwarf, and two viroses of rose have been purified and concentrated from cucumber leaves and/or peach and cherry petals and peach leaves by differential centrifugation. To prevent inactivation of the virus, the Prunus tissues were homogenized with 0.1% potassium cyanide in 2.5% sodium bisulphite. Infective extracts of some of the entities were also prepared by ammonium sulphate precipitation and from aqueous chloroform–amyl-alcohol emulsion. Particles ranging from less than 10 to more than 100 mμ in diameter were observed with the electron microscope in extracts from both healthy and virus-infected sources. In the former, prepared by differential centrifugation, particles were distributed about a series of peaks at 10 mμ intervals and, in the latter, about a single mode characteristic of the entity under examination. Particles associated with different entities ranged from 28 mμ diameter for rose mosaic to 50 mμ for some tatter leaf and green ring mottle isolates. In extracts known to contain two viruses, characteristic distributions of each component of the mixture could be determined if the mean particle diameter of one virus was known and differed from that of the other entity by 5 mμ or more. Evidence based on particle characteristics, supplemented by cross protections and comparative symptomatology suggests that the necrotic ring spot virus is not necessarily involved in the etiology of cherry yellows, prune dwarf, tatter leaf, or green ring mottle.

EFFECTS OF NECROTIC RING SPOT AND SOUR CHERRY YELLOWS ON THE GROWTH AND YIELD OF YOUNG SOUR CHERRY TREES

1965 ◽  
Vol 45 (6) ◽  
pp. 525-535 ◽  
Author(s):  
T. R. Davidson ◽  
J. A. George
Keyword(s):  
Growth Rate ◽  
Sour Cherry ◽  
Economic Importance ◽  
Growth And Yield ◽  
Slight Reduction ◽  
Spot Virus ◽  
Tree Form ◽  
Ring Spot ◽  
Block Experiment ◽  
Cherry Trees

In a randomized block experiment sour cherry trees were infected at 1, 2, 4, or 6 years of age with either the necrotic ring spot virus (NRSV) or the sour cherry yellows virus (SCYV) or with both. Tree growth was retarded by both viruses but the effects of SCYV were most severe. A marked retardation of the growth rate following SCYV infection persisted for two to five years depending on the age of the tree when infected. The growth rate of trees infected with both viruses was very similar to that for trees with SCYV only and indicates the predominance of this virus in these combinations. NRSV alone caused a slight reduction in growth rate but there was never an abrupt effect.Because the effects of SCYV on growth and tree form were severe, yields were very low. NRSV caused only a 10 to 30% reduction in growth but the reduction in yield varied from 36 to 56%. Hence the effects of NRS may be of more economic importance than the relatively minor reductions in growth have indicated.

SEROLOGICAL AND PHYSICAL PROPERTIES OF SOME STONE-FRUIT VIRUSES: NON-VIRUS PARTICLES ASSOCIATED WITH INFECTION

1961 ◽  
Vol 39 (6) ◽  
pp. 1447-1452 ◽  
Author(s):  
R. S. Willison ◽  
J. H. Tremaine ◽  
M. Weintraub
Keyword(s):  
Sour Cherry ◽  
Double Diffusion ◽  
Nucleic Acid Content ◽  
Yellow Virus ◽  
Spot Virus ◽  
Agar Gel ◽  
Virus Particles ◽  
Diffusion Technique ◽  
Ring Spot ◽  
Virus Isolates

Cherry yellow virus, isolates Y.2 and Y.4, and necrotic ring spot virus, isolates N.4 and N.5, purified either from cucumber leaves or from sour cherry petals, were characterized by antigenically related particles that sedimented at approximately 72 S. Some preparations of each virus derived from either host also contained either a 35 S or a 22 S component usually having a low nucleic acid content. Such preparations were shown by the agar gel double-diffusion technique to contain two antigens, V and Q, that were only distantly, if at all, related. The 72 S component is associated with the V antigen, whereas the 22 S and 35 S components are tentatively considered to be two forms of the Q antigen. The Q antigen could also be detected in clarified expressed sap of infected cucumber tissue, but not in that of healthy cucumber nor in extracts prepared from healthy sources by methods used to purify the viruses. The Q antigen is thus associated with infection, but its origin has not yet been satisfactorily determined.

Sign in / Sign up

Export Citation Format

Share Document