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1. 31. Relative Growth in Amphibia

Author:
F. March
Source:
Proceedings of the Zoological Society of London 1937 v.A107 no.3 pp. 415-469
ISSN:
0370-2774
Subject:
Rana; Salamandra; Ursidae; allometry; animal ovaries; autumn; body length; breeding season; cod (fish); equations; females; frogs; hibernation; kidneys; liver; males; ova; oviducts; puberty; salamanders and newts; seasonal variation; seminal vesicles; spermatozoa; spring; summer; tadpoles; testes; tissues; weight loss
Abstract:
... : 1 The length of the hind limb of R. temporaria bears to the body length a linear relationship, which can be expressed by the equation y=ax+b. There is a change in the value of the constants a and b at a point which marks the onset of puberty in the female. 2 The weight of amphibians as deduced from mean group measurements of R. temporaria, T. cristatus, S. maculose, A. tigrinum, and R. esculenta ...
DOI:
10.1111/j.1096-3642.1937.tb00820.x

2. Studies on the Microbiological Degradation of Wool : Digestion of Normal and Modified Fibrillar Proteins

Author:
William H. Stahl; Bernard McQue; Gabriel R. Mandels; R.G.H. Siu
Source:
Textile research journal 1950 v.20 no.8 pp. 570-579
ISSN:
0040-5175
Subject:
Microsporum gypseum; chemical composition; collagen; digestion; fabrics; fungi; histology; hooves; keratin; mohair; polymerization; silk; textile fibers; tissues; wool
Abstract:
... Measurements of the susceptibility of various keratins and fibrillar proteins to digestion by a keratinolytic fungus were made. Both normal and modified proteins were used. Digestion of the following fibrillar proteins by Microsporum gypseum over a 21-day period was, from the highest percentage digestion to the lowest: collagen, feather, hoof, wool, horn, horsehair, mohair, and silk. The primary f ...
DOI:
10.1177/004051755002000805

3. The Effect of Mineral Nutrition on the Expression of Potato Leaf Roll Virus Symptoms

Author:
C. S. Hoveland; K. C. Berger; H. M. Darling
Source:
Soil Science Society of America journal 1954 v.18 no.1 pp. 53-55
ISSN:
0361-5995
Subject:
Potato leafroll virus; Solanum tuberosum; calcium; field experimentation; greenhouses; leaf rolling; magnesium; nitrogen; nutrient deficiencies; phosphorus; pigmentation; potassium; sulfur; tissues; viruses
Abstract:
... Some mineral deficiency symptoms and those of the leaf roll virus have frequently been confused. The similarity between mineral deficiencies and leaf roll symptoms suggests that the effect of the virus might be influenced by the nutrition of its host. A study of certain mineral relationships between healthy and diseased leaf roll plants in the Chippewa variety was therefore undertaken. In greenhou ...
DOI:
10.2136/sssaj1954.03615995001800010013x

4. Effect of a soil microflora selected by carbon disulphide fumigation on survival of armillaria mellea in woody host tissues

Author:
S. D. Garrett
Source:
Canadian journal of microbiology 1957 v.3 no.2 pp. 135-149
ISSN:
1480-3275
Subject:
Armillaria mellea; Trichoderma viride; ascospores; carbon disulfide; fumigants; fungi; inoculum; mycelium; roots; soil; soil fumigation; soil microorganisms; tissues; tree diseases; viability; viability assays; woody plants
Abstract:
... A test has been made of Bliss's hypothesis that when infected tree roots are fumigated with carbon disulphide, Armillaria mellea is killed not by direct fungicidal action, but through the agency of Trichoderma viride, which is relatively tolerant of the fumigant and becomes dominant in the treated soil. Bliss's observation that T. viride becomes much more abundant in soil after fumigation was conf ...
DOI:
10.1139/m57-018

5. The Effect of Soil Characteristics on the Growth of Quaking Aspen in Northern Minnesota

Author:
G. K. Voigt; M. L. Heinselman; Z. A. Zasada
Source:
Soil Science Society of America journal 1957 v.21 no.6 pp. 649-652
ISSN:
0361-5995
Subject:
Populus tremuloides; calcium; magnesium; nitrogen; nitrogen content; potassium; soil properties; tissues; trees; Minnesota
Abstract:
... A study was made of the relationship between soil properties and the growth of quaking aspen on 16 sample plots in northern Minnesota. The soils of this region show wide variations in their levels of replaceable bases and other associated fertility factors. The average annual growth of aspen on soils with high levels of calcium, magnesium, potassium, and nitrogen was over 4 times greater than the ...
DOI:
10.2136/sssaj1957.03615995002100060020x

6. Ausgewählte Beispiele aus der Physiologie des Kohlenhydratstoffwechsels und seiner Pathologie im Kindesalter: Glykogenspeicherkrankheit und Galaktosämie

Author:
O. Hövels
Source:
Stärke = 1960 v.12 no.8 pp. 227-232
ISSN:
0038-9056
Subject:
biochemical pathways; chemical structure; enzyme activity; galactose; galactosemia; glucose; glucose-6-phosphatase; glycogen; glycogenolysis; glycogenosis; humans; kidneys; liver; tissues; toxicity; transferases
Abstract:
... In human pathology there are a number of diseases resulting only from the fact that the chemical structure of individual components of the body deviate from normal. Pauling calls such diseases „molecular diseases”. As changes in or failure of enzyme activities are the cause of the structural deviations, the collective name „Enzymopathies” has been suggested. As examples for „molecular diseases” tw ...
DOI:
10.1002/star.19600120801

7. Ash and Calorie Determinations of Sponge and Opisthobranch Tissues

Author:
Robert T. Paine
Source:
Ecology 1964 v.45 no.2 pp. 384-387
ISSN:
0012-9658
Subject:
calcium carbonate; calorimeters; drying; silica; skeleton; temperature; tissues
Abstract:
... Studies on the caloric value of sponge and opisthobranch tissue have been used to indicate 2 actual sources of error in determining an organism's cal/ash—free g value. If the skeleton is hydrated, this water is not removed at normal drying temperatures (100°C) when the skeletal material is CaCO₃, and is only partly removed from SiO₂ skeletons. The cal/ash—free g value is seriously underestimated i ...
DOI:
10.2307/1933856

8. Phosphorus and Zinc Concentrations in Russet Burbank Potato Tissues in Relation to Development of Zinc Deficiency Symptoms

Author:
Louis C. Boawn; G. E. Leggett
Source:
Soil Science Society of America journal 1964 v.28 no.2 pp. 229-232
ISSN:
0361-5995
Subject:
Solanum tuberosum; nutrient deficiencies; nutrient solutions; phosphorus; potatoes; tissues; zinc
Abstract:
... Russet Burbank potatoes were grown on field plots and in nutrient solutions at levels of Zn and P nutrition that would produce plants ranging from no Zn deficiency to severe Zn deficiency. Increasing the supply of P induced a growth disorder that could be eliminated by an increased supply of Zn. Neither the development of the deficiency nor the elimination of the deficiency was well correlated wit ...
DOI:
10.2136/sssaj1964.03615995002800020030x

9. Studies on the secretion of digestive enzymes in locusta migratoria l. ii. invertase activity

Author:
KHAN, MUMTAZ AHMAD
Source:
Entomologia experimentalis et applicata 1964 v.7 no.2 pp. 125-130
ISSN:
0013-8703
Subject:
Locusta migratoria; adults; beta-fructofuranosidase; cecum; digestive enzymes; enzyme activity; hormonal regulation; instars; midgut; secretion; tissues
Abstract:
... At the beginning of the last nymphal instar or of adult life of Locusta there is a small production of invertase in the tissues of the midgut and caeca, which appears to be under hormonal control. This ceases after a few days if food is withheld. From then on the production of enzyme is probably dependent on the gut being continuously filled with food. ...
DOI:
10.1111/j.1570-7458.1964.tb02430.x

10. THE Relation of the cabbage maggot, hylemyia brassicae (bouché), to decay in some cruciferous crops¹

Author:
DOANE, J.F.; CHAPMAN, R.K.
Source:
Entomologia experimentalis et applicata 1964 v.7 no.1 pp. 1-8
ISSN:
0013-8703
Subject:
Brassica napus; Brassica oleracea; Brassica rapa subsp. pekinensis; Chinese cabbage; Delia radicum; Enterobacter; Erwinia; Pseudomonas; adults; bacteria; bacterial contamination; eclosion; eggs; larvae; pigmentation; prepupae; puparium; rutabagas; tissues
Abstract:
... Bacteria pathogenic to crucifers were isolated from 92% of the eggs from flies of the cabbage maggot, Hylemyia brassicae (Bouché) of a population from rutabaga (Swede; Brassica napus napobrassicd) and from 90% of those from a population from Chinese cabbage (Brassica pekinensis). The larvae transmitted the decay-causing bacteria to healthy tissues and aided in the development and spread of the rot ...
DOI:
10.1111/j.1570-7458.1964.tb00721.x

11. On the Mechanism of Phosphorus-Zinc Interaction in Corn Nutrition

Author:
D. D. Stukenholtz; R. J. Olsen; Gerald Gogan; R. A. Olson
Source:
Soil Science Society of America journal 1966 v.30 no.6 pp. 759-763
ISSN:
0361-5995
Subject:
Zea mays; corn; greenhouses; plant nutrition; plant root cells; roots; soil; tissues; zinc
Abstract:
... Studies were carried out in the greenhouse and field to elaborate the mechanism of P-Zn interaction in the nutrition of corn (Zea mays L.). From this work depressive action of P on Zn uptake of corn appears to be largely physiological in nature, expressed at root surfaces and/or in root cells, and is not chemical inactivation of Zn by P in soil. Translocation of Zn from roots to tops is inhibited ...
DOI:
10.2136/sssaj1966.03615995003000060029x

12. Physiological Responses to Temperature in the Alligator Lizard, Gerrhonotus Multicarinatus

Author:
William R. Dawson; James R. Templeton
Source:
Ecology 1966 v.47 no.5 pp. 759-765
ISSN:
0012-9658
Subject:
blood volume; breathing; heart rate; heat production; heat tolerance; lizards; mouth; oxygen; oxygen consumption; physiological response; temperature; tissues
Abstract:
... The effects of temperature upon oxygen consumption, heart rate, breathing rate, and evaporative water loss of resting alligator lizards. (Gerrhonotus multicarinatus) were analyzed. The Q₁ ₀ for oxygen consumption remains constant at 3.1 between approximately 4°C and the upper level of thermal tolerance for this species, 39°—40°C. That for heart rate remains 2.3 between 10° and 39°—40°C, increasing ...
DOI:
10.2307/1934262

13. Causes of resistance to ddt in a diazinon-selected and a ddt-selected strain of house flies

Author:
BASHEIR, S. EL
Source:
Entomologia experimentalis et applicata 1967 v.10 no.1 pp. 111-126
ISSN:
0013-8703
Subject:
DDE (pesticide); DDT (pesticide); Musca domestica; metabolites; tissues; topical application
Abstract:
... The causes of resistance to DDT in a DDT-selected (F58W) and a diazinon-selected (SKA) strain of house flies differed. Small (1 μg DDT/fly) topically applied doses penetrated more slowly into the SKA than into the F58W or susceptible strains. Large doses (32 μg/fly) penetrated equally fast into all strains. The two resistant strains metabolised DDT rapidly and the susceptible strain slowly. The on ...
DOI:
10.1111/j.1570-7458.1967.tb00050.x

14. Investigations into the Nature of Thatch and Methods for its Decomposition

Author:
F. B. Ledeboer; C. R. Skogley
Source:
Agronomy journal 1967 v.59 no.4 pp. 320-323
ISSN:
0002-1962
Subject:
Agrostis canina; calcium; chemical analysis; endo-1,4-beta-glucanase; fertilizers; fibrous roots; glucose; greenhouse experimentation; lawns and turf; leaves; lignin content; soil; stems; straw; sucrose; thatch; tissues; top dressings
Abstract:
... The rate of thatch decay in turf was investigated following treatment with certain mono- and disaccharides in combination with calcium and fertilizer. In a field study on 15-year-old velvet bentgrass putting turf, sucrose treatments decreased turf quality and modified die stimulating effects of fertilizer. Lime had no influence on turf quality. Sucrose tended to increase the incidence of dollar sp ...
DOI:
10.2134/agronj1967.00021962005900040010x

15. Adenocarcinoma of the Ciliary Body : A Report of 2 Cases in Dogs

Author:
Roy W. Bellhorn; Paul Henkind
Source:
Veterinary pathology v.5 no.2 pp. 122-126
ISSN:
1544-2217
Subject:
adenocarcinoma; animal pathology; dogs; metastasis; tissues
Abstract:
... Two cases of adenocarcinoma of the ciliary body in the dog are described. Invasion of ocular tissues and, in 1 case, extraocular tissue occurred, however distant metastasis did not. These characteristics are similar to those of such tumors in man. ...
DOI:
10.1177/030098586800500203

16. Spontaneous Bluetongue in Texas White-Tailed Deer

Author:
E. L. Stair; R. M. Robinson; L. P. Jones
Source:
Veterinary pathology v.5 no.2 pp. 164-173
ISSN:
1544-2217
Subject:
Odocoileus virginianus; animal pathology; antibodies; bluetongue; deer; epizootic hemorrhagic disease; fluorescence; herds; histopathology; sheep; tissues; vasculitis; Texas
Abstract:
... The clinical, gross, and microscopic findings of an outbreak of bluetongue (BT) in a herd of captive white-tailed deer are described. Serologic diagnosis of BT was accomplished by fluorescent antibody (FA) reaction in tissues from affected deer. The basic lesion was considered on the basis of histopathologic and FA findings to be a vasculitis. A possible relationship of BTV of deer and sheep to ep ...
DOI:
10.1177/030098586800500207

17. An Index to Measure Weather‐Induced Stress of Trees Associated With Outbreaks of Psyllids in Australia

Author:
T. C. R. White
Source:
Ecology 1969 v.50 no.5 pp. 905-909
ISSN:
0012-9658
Subject:
Psyllidae; phytophagous insects; soil water; tissues; trees; Australia
Abstract:
... A measure of the changes in soil water which induce water deficits–and thus physiological stress–in the tissues of plants is described, and named the stress index. Known outbreaks of psyllids throughout Australia were strongly correlated with suddenly increasing high levels of this stress index. It is postulated that physiological stress of plants at these times increased the amount of nitrogeneou ...
DOI:
10.2307/1933707

18. Effect and Interaction of Molybdenum and Limestone on Growth and Molybdenum Content of Cauliflower, Alfalfa, and Bromegrass on Acid Soils

Author:
Umesh C. Gupta
Source:
Soil Science Society of America journal 1969 v.33 no.6 pp. 929-932
ISSN:
0361-5995
Subject:
Brassica oleracea; Bromus inermis; Medicago sativa; acid soils; alfalfa; cauliflower; crop yield; crops; greenhouse experimentation; limestone; liming; molybdenum; sandy clay loam soils; sandy loam soils; silty clay loam soils; soil pH; tissues
Abstract:
... A greenhouse study involving four levels each of Mo and limestone indicated that without application of both Mo and lime, the cauliflower (Brassica oleracea, var. botrytis L.) crop produced very poor yields on the three soils investigated. Alfalfa (Medicago sativa L., var. ‘Narragansett’) was also a failure without added lime. At soil pH values of 5.5 and above, Mo applications increased the yield ...
DOI:
10.2136/sssaj1969.03615995003300060037x

19. Generalised Amyloidosis in Seven Cats

Author:
Leigh Clark; A. A. Seawright
Source:
Veterinary pathology v.6 no.2 pp. 117-134
ISSN:
1544-2217
Subject:
amyloidosis; animal pathology; cats; dermatitis; hypervitaminosis A; necropsy; tissues
Abstract:
... Seven casts of generalised amyloidosis in the cat, occurring in 100 consecutive cat autopsies, were studied pathologically. Tissues from 2 of the cats were further investigated using the electron microscope. None of the cats had suffered from a prolonged infection, but one had had chronic allergic dermatitis. In 6 of the 7 cats chronic hypervitaminosis A coexisted with generalised amyloidosis. It ...
DOI:
10.1177/030098586900600203

20. Hematological and Virological Studies of Epizootic Hemorrhagic Disease of Deer

Author:
WILHELM ALAN R.; TRAINER DANIEL O.
Source:
Bulletin of the Wildlife Disease Association 1969 v.5 no.2 pp. 77-94
ISSN:
0098-373X
Subject:
Odocoileus virginianus; deer; epizootic hemorrhagic disease; fluorescent antibody technique; hemorrhage; leukocyte count; mice; neutrophils; pathogenesis; suckling; tissues; viral antigens; wildlife diseases
Abstract:
... The pathogenesis of epizootic hemorrhagic disease of deer (EHD) was studied in suckling white mice and white-tailed deer (Odocoileus virginianus) using these approaches: (1) measurement of hematological values, (2) assay of virus in various organs, and (3) detection of viral antigen within tissues using the direct fluorescent antibody technique. An increase in bleeding time was the only hematologi ...
DOI:
10.7589/0090-3558-5.2.77

21. Natural Occurrence and Experimental Study of Pox and Haemoproteus Infections in a Mute Swan (Cygnus olor)

Author:
LEIBOVITZ LOUIS
Source:
Bulletin of the Wildlife Disease Association 1969 v.5 no.3 pp. 130-136
ISSN:
0098-373X
Subject:
Cygnus olor; Haemoproteus; beak; chickens; ducks; face; geese; pigeons; swans; tissues; wildlife diseases
Abstract:
... Pox and Haemoproteus sp. infections in a mute swan are reported. Experimental study of the swan pox isolate indicated that geese were susceptible, but chickens, ducks, and pigeons were resistant to the virus. The distinctive feature of pox infection in the swan was the invasive proliferation deep into the subcutaneous tissues of the face and beak, producing facial deformity and swelling. ...
DOI:
10.7589/0090-3558-5.3.130

22. Penetration of Coniferous Trees by DDT

Author:
Ivan N. McDaniel
Source:
Ecology 1969 v.50 no.5 pp. 909-910
ISSN:
0012-9658
Subject:
Culicidae; DDT (pesticide); cages; conifers; insects; mortality; tissues; wood
Abstract:
... Cages of wooden framing have in some cases caused mortality of mosquitoes in our laboratory. Analytical tests have indicated the presence of DDT in the wood. It is suggested that DDT may penetrate conifers and become stored in the woody tissues. Even very low concentrations of DDT in wood could cause problems when used in cages to hold insects that are highly sensitive to this compound. ...
DOI:
10.2307/1933708

23. Preliminary Models for Growth Rates in Altricial Birds

Author:
Robert E. Ricklefs
Source:
Ecology 1969 v.50 no.6 pp. 1031-1039
ISSN:
0012-9658
Subject:
adults; birds; body size; body weight; energy; food availability; growth models; mortality; parents; progeny; tissues
Abstract:
... The rate of growth in body weight of birds is not correlated with nestling mortality, but rather is a function of the adult body size of the species and the mode of development of the young. To examine the adaptive basis of growth rates, models are formulated which incorporate the mortality of the young, their energy requirement and their rate of growth into a function which determines the product ...
DOI:
10.2307/1936894

24. Release of hydrolytic enzymes from cytoplasmic particles of Solanum tuber tissues during infection by tuber-rotting fungi

Author:
Pitt, D.; Coombes, C.
Source:
Journal of general microbiology 1969 v.56 no.3 pp. 321-329
ISSN:
0022-1287
Subject:
infection; enzymes; fungi; particles; Solanum; tubers
DOI:
10.1099/00221287-56-3-321

25. Influence of Manganese and pH on Chemical Composition, Bronzing of Leaves, and Yield of Carrots Grown on Acid Sphagnum Peat Soil

Author:
Umesh C. Gupta; E. W. Chipman; D. C. MacKay
Source:
Soil Science Society of America journal 1970 v.34 no.5 pp. 762-764
ISSN:
0361-5995
Subject:
Daucus carota; Sphagnum; carrots; chemical composition; crop yield; greenhouse experimentation; iron; manganese; peat soils; roots; tissues
Abstract:
... Greenhouse experiments were conducted on the direct effects and interactions of pH and Mn on the growth and the Mn and Fe contents of carrots (Daucus Carota L., sativa D.C.) grown on an acid sphagnum peat soil. The highest content of Mn in carrot tops occurred at pH values of 4.4 to 5.0 and the lowest at pH 6.2 and 6.4. However, the Mn content was lower at pH values of 4.0 and 4.1 than at pH 4.4 t ...
DOI:
10.2136/sssaj1970.03615995003400050027x

26. Nephropathy and Edema Syndrome Induced in Miniature Swine by Corn Cultures of Penicillium viridicatum

Author:
William W. Carlton; John Tuite
Source:
Veterinary pathology v.7 no.1 pp. 68-80
ISSN:
1544-2217
Subject:
Penicillium viridicatum; animal pathology; anorexia; ascites; autoclaving; blood; corn; edema; glycosuria; kidney diseases; kidneys; miniature swine; paresis; poisoning; proteinuria; swine; tissues; urea nitrogen
Abstract:
... Nephropathy and a syndrome of edema were produced in miniature swine by cultures of Penicillium viridicatum grown on autoclaved corn. The dried and ground cultures were mixed at a 50% concentration with a commercial pig feed. After a few days of feeding, the pigs became depressed, developed anorexia, posterior paresis, elevated blood urea nitrogen levels, proteinuria, and glycosuria. Gross lesions ...
DOI:
10.1177/030098587000700108

27. Specific Chloride Injury in Persea americana

Author:
L. B. Fenn; J. J. Oertli; F. T. Bingham
Source:
Soil Science Society of America journal 1970 v.34 no.4 pp. 617-620
ISSN:
0361-5995
Subject:
Persea americana; avocados; chlorides; energy; fruit trees; growth retardation; leaves; mass flow; necrosis; osmotic pressure; photosynthesis; tissues; turgor
Abstract:
... The mode of chloride injury in avocado plants (Persea americana) was studied at variable Cl levels. The experiment revealed that when leaf burn occurred, it was associated with abnormally high content in total and leachable salt in the leaves. The substantial leachable fraction presumably represents high concentrations of extracellular salt, which accumulates in tips and margins of the leaves afte ...
DOI:
10.2136/sssaj1970.03615995003400040023x

28. Visceral Leishmaniosis in a Fenner Fox (Fennecus zerda)

Author:
James D. Conroy; Norman D. Levine; Erwin Small
Source:
Veterinary pathology v.7 no.2 pp. 163-170
ISSN:
1544-2217
Subject:
Leishmania; Vulpes zerda; animal pathology; foxes; parasites; tissues; visceral leishmaniasis; Northern Africa
Abstract:
... Visceral leishmaniosis presumably due to Leishmonia donovani was found in a fennce fox (Fennecus Zerda) from northern Africa. The parasite was identified by light and electron-microscopic studies of fixed tissues after the host had died of the disease. The tissue reaction was characterized by proliferation of reticuloendothelial cells. This is apparently the first report of Leishmania in the fenne ...
DOI:
10.1177/030098587000700210

29. Vorkommen von Laminosioptes cysticola in den Bauchorganen einer Pute

Author:
G. Kaliner
Source:
Veterinary pathology v.7 no.4 pp. 321-328
ISSN:
1544-2217
Subject:
animal pathology; hemosiderosis; histology; inflammation; kidneys; liver; mites; small intestine; spleen; tissues
Abstract:
... Bei einer sechs Monate alten Pute wurde in der Leber, Niere, den Gefässuänden dieser Organe und in der Subserosa des Dünndarmes Laminosioptes cystitola gefunden, Die histologische Untersuchung ergab eine Perihepatitis, Perinephritis, eine Lokalisierte Entzündung von Leber und Niere und eine Hämosiderose in Leber. Niere und Milz. Eine Anzahl von kleineren Gefässen zeigten Hyalinablagerungen. Auf Gr ...
DOI:
10.1177/030098587000700402

30. Lesions in Puppies Surviving Infection with Canine Herpesvirus

Author:
D. H. Percy; L. E. Carmichael; D. M. Albert; J. M. King; A. M. Jonas
Source:
Veterinary pathology v.8 no.1 pp. 37-53
ISSN:
1544-2217
Subject:
animal pathology; antigens; necrosis; pneumonia; puppies; cerebral cortex; encephalitis; cerebellum; Canid alphaherpesvirus 1; fluorescence microscopy; tissues
Abstract:
... Four puppies experimentally infected with canine herpesvirus (CHV) and one spontaneously infected animal, all of which survived the disease, were examined. Histologically, there were a focal granulomatous encephalitis, interstitial pneumonitis, and segmental renal necrosis with dysplasia. In the animal with naturally occurring infection there was segmental cerebellar and retinal dysplasia, and CHV ...
DOI:
10.1177/030098587100800106

31. Radicle Elongation of Pea Seedlings as Affected by Oxygen Concentration and Gradients between Shoot and Root

Author:
B. W. Eavis; H. M. Taylor; M. G. Huck
Source:
Agronomy journal 1971 v.63 no.5 pp. 770-772
ISSN:
0002-1962
Subject:
containers; cotyledons; oxygen; partial pressure; peas; root tips; seedlings; shoots; soil air; tissues
Abstract:
... Pea seedlings grown in divided gas-tight containers were arranged so that O₂ concentration of soil air around the radicles could be varied independently of that around the cotyledons and plumules. When the soil around the radicle tip contained 0.21 atm O₂, no significant reduction in radicle elongation rate was observed until the gas mixture surrounding the cotyledons was reduced below 0.10 atm pa ...
DOI:
10.2134/agronj1971.00021962006300050034x

32. Thrombosis Complicating Renal Amyloidosis in Dogs

Author:
D. O. Slauson; D. H. Gribble
Source:
Veterinary pathology v.8 no.4 pp. 352-363
ISSN:
1544-2217
Subject:
amyloidosis; animal pathology; dogs; heart; infarction; intestines; kidneys; thrombosis; tissues
Abstract:
... Thrombosis, sometimes with infarction, occurred in 20 of 52 dogs with renal amyloidosis. Pulmonary thrombosis was most commonly encountered, although the heart, kidneys, intestine, and other tissues were occasionally affected. Recent thrombi and older, organized thrombi occurred, sometimes in the same animal. The possible role of dehydration, hemoconcentration, hyperfibrinogenemia, hyperglobulinem ...
DOI:
10.1177/030098587100800406

33. Cotton Growth Response and B Distribution from Foliar Application of B

Author:
O. E. Anderson; Kenneth Ohki
Source:
Agronomy journal 1972 v.64 no.5 pp. 665-667
ISSN:
0002-1962
Subject:
Gossypium hirsutum; boron; cotton; foliar application; greenhouse production; greenhouses; leaf blade; petioles; plant height; tissues
Abstract:
... Foliar application of B has been frequently used to ameliorate B deficiency in cotton (Gossypium hirsutum L.) in the field. This study was initiated to provide information on B distribution pattern and growth responses from foliar application under greenhouse conditions. Boron was applied to cotton foliage in the greenhouse at three application dates by paint or spray application at the 5 to 7-lea ...
DOI:
10.2134/agronj1972.00021962006400050034x

34. Effect of Root-absorbed 2,3,5-Triiodobenzoic Acid on Nutrient Absorption and Growth by Soybeans

Author:
K. Ohki; L. J. McBride
Source:
Agronomy journal 1972 v.64 no.2 pp. 234-237
ISSN:
0002-1962
Subject:
Glycine max; absorption; benzoic acids; calcium; internodes; iron; leaves; magnesium; manganese; nitrate nitrogen; nutrient solutions; nutrient uptake; nutrients; phosphorus; potassium; roots; shoots; soybeans; tissues; total phosphorus
Abstract:
... sFoliar application of 2,3,5-triiodobenzoic acid (TIBA) has been recently used on soybeans [Glycine max (L.) Merr.] to enhance yields. Root application appeared as an alternative naethod of applying TIBA to the plant. This study was initiated to provide information on effects of root-absorbed TIBA on growth, nutrient absorption, and nutrient distribution. Plants were grown, in Hoagland solution wi ...
DOI:
10.2134/agronj1972.00021962006400020031x

35. Nutritional Influences on Cold Hardiness of St. Augustinegrass {Stenotaphrum secundatum)

Author:
Sim A. Reeves; George G. McBee
Source:
Agronomy journal 1972 v.64 no.4 pp. 447-450
ISSN:
0002-1962
Subject:
Stenotaphrum secundatum; autumn; chemical analysis; cold tolerance; fertilizer application; grasses; nitrogen; nitrogen fertilizers; phosphorus; potassium; spring; temperature; tissues
Abstract:
... The study was designed to determine the effect of latefall fertilization on winterkilling of St. Augustinegrass (Stenotaphrum secundatum). Data on which to base recommendations for late-season fertilization of this grass in the South are inadequate. N, P, and K, and combinations of these were applied at different intervals at the rate of 1.47, 0.64, 1.23 kg/100 m³/mo, respectively, through Decembe ...
DOI:
10.2134/agronj1972.00021962006400040011x

36. Phosphate Fixation by Aluminum in Plant Roots

Author:
Larry H. McCormick; F. Yates Borden
Source:
Soil Science Society of America journal 1972 v.36 no.5 pp. 799-802
ISSN:
0361-5995
Subject:
Hordeum vulgare; Populus; aluminum; aluminum phosphate; barley; cell membranes; cell walls; color; molybdenum; root cap; root tips; tissues; toxicity
Abstract:
... Although the exact physiological mechanism of Al toxicity is unknown, experiments have indicated that Al reduces the uptake of phosphates in plants. The suspected sites of Al-phosphate interaction are within the root tissue and along the root surface. The present investigation was designed to identify by photomicrographic techniques the sites of phosphate fixation by Al within plant roots. Followi ...
DOI:
10.2136/sssaj1972.03615995003600050031x

37. Uptake and Assimilation of Ammonium-N and Nitrate-N and Their Influence on the Growth of Corn (Zea mays L.)

Author:
L. E. Schrader; D. Domska; P. E. Jung; L. A. Peterson
Source:
Agronomy journal 1972 v.64 no.5 pp. 690-695
ISSN:
0002-1962
Subject:
Zea mays; amino acid composition; amino acids; ammonium; ammonium nitrogen; corn; developmental stages; enzyme activity; greenhouse production; leaf blade; nitrate nitrogen; nitrate reductase; nitrates; nitrogen; nutrient solutions; planting; roots; stems; tissues; total nitrogen
Abstract:
... Variations in response to ammonium and nitrate by different plant species including corn (Zea mays L.) quires further definition. Corn was grown in nutrient solutions under greenhouse conditions to investigate (1) uptake of ammonium and nitrate from the solutions and (2) the effect of ammonium and nitrate on growth, nitrate reductase activity, and accumulation of total N and nitrate in leaves, ste ...
DOI:
10.2134/agronj1972.00021962006400050042x

38. An Improved Technique for Making Wedge Grafts in Soybean Plants

Author:
J. L. Sanders; D. A. Brown
Source:
Agronomy journal 1973 v.65 no.4 pp. 675-676
ISSN:
0002-1962
Subject:
Glycine max; grafting (plants); polymethylmethacrylate; roots; scions; soybeans; tissues
Abstract:
... The design and use of a grafting block for making uniform and reproducible wedge grafts in soybean (Glycine max (L.) Merr.) plants is presented. The grafting block was prepared from plexiglass measuring 14 ✕ 10 ✕ 1.2 cm. A slot to hold the scion was cut at a 2.5-degree angle to the face of the block. The slot measured 4 cm in length, 0.3 cm in width, and varied in depth from 0.15 cm at the edge of ...
DOI:
10.2134/agronj1973.00021962006500040044x

39. Enzymhistochemische Untersuchungen der Augentumoren von Rindern. I. Enzymhistochemische Befunde an Papillomen und Fibromen

Author:
I. Ivascu; E. Muresan; Z. Papay
Source:
Veterinary pathology v.10 no.3 pp. 257-265
ISSN:
1544-2217
Subject:
adenosinetriphosphatase; alkaline phosphatase; animal pathology; carboxylic ester hydrolases; cattle; enzyme activity; neoplasms; tissues
Abstract:
... The activity of succinic dehydrogenase, adenosine triphosphatase, acid and alkaline phosphatase, lipase and nonspecific esterases in 12 tumors of the orbital region of cattle was studied. The succinic dehydrogenase activity was not significantly different in papillomas and fibromas, as compared with that of the normal tissues of origin of the tumors. Topographical distribution of adenosine triphos ...
DOI:
10.1177/030098587301000308

40. Nitrate Accumulation in Table Beets and Spinach as Affected by Nitrogen, Phosphorus, and Potassium Nutrition and Light Intensity

Author:
D. J. Cantliffe
Source:
Agronomy journal 1973 v.65 no.4 pp. 563-565
ISSN:
0002-1962
Subject:
Beta vulgaris; Spinacia oleracea; beets; fertilizer rates; freeze drying; greenhouse experimentation; humans; leaf blade; light intensity; nitrate nitrogen; nitrates; nitrogen; nitrogen fertilizers; nutrition; phosphorus; phosphorus fertilizers; potassium; potassium fertilizers; roots; sandy loam soils; spinach; tissues; total nitrogen
Abstract:
... The objective of this research was to determine the effects of varying levels of N, P, and K fertilizer and light intensity on nitrate accumulation in species grown for human consumption. In greenhouse experiments, table beets (Beta vulgaris L.) and spinach (Spinacia oleracea L.) were grown in fine sandy loam soil at three levels of N, P, and K fertilizer in a 3³ factorial design. Plants were grow ...
DOI:
10.2134/agronj1973.00021962006500040012x

41. Phosphate Uptake and Distribution in Bush Bean Plants as Affected by Foliar Application of Naphthenate

Author:
John G. Severson; D. J. Wort
Source:
Agronomy journal 1973 v.65 no.3 pp. 520-521
ISSN:
0002-1962
Subject:
Phaseolus; cultivars; foliar application; green beans; hydroponics; leaf blade; naphthenates; nutrient solutions; phosphates; plant organs; potassium; tissues
Abstract:
... A 0.5% solution of potassium naphthenates (KNap) was applied to the foliage of hydroponically grown 14- day-old bush bean (Phaseolus vuigaris L., cultivar ‘Top Crop’) plants to determine the effect of this chemical mixture on the uptake and distribution of root-fed ³²P among leaf blade, stem, and root tissues. The plants were grown in eiither a phosphate-free (−P plants) or complete nutrient solut ...
DOI:
10.2134/agronj1973.00021962006500030054x

42. Rumen Microbial Degradation of Grass Tissue Revealed by Scanning Electron Microscopy

Author:
Danny E. Akin; Henry E. Amos; Franklin E. Barton; Donald Burdick
Source:
Agronomy journal 1973 v.65 no.5 pp. 825-828
ISSN:
0002-1962
Subject:
Cynodon dactylon; Festuca arundinacea; biodegradation; grasses; leaves; rumen microorganisms; scanning electron microscopes; scanning electron microscopy; tissues
Abstract:
... Leaves of ‘Kentucky 31’ tall fescue (Festuca arundinacea Schreb.) and ‘Coastal’ bermudagrass (Cynodon doctylon (L) Pers.) were studied to relate microanatomical differences to differences in degradation. Leaf sections of each grass were incubated with rumen microorganisms for various tunes and examined using the scanning electron microscope. Data reveal that tall fescue is degraded more rapidly an ...
DOI:
10.2134/agronj1973.00021962006500050045x

43. Studies on the Induction and Repression of Enzymes in Rat Liver: Characterization and Metabolic Regulation of Multiple Forms of Tyrosine Aminotransferase

Author:
Iwasaki, Yoshifumi; Lamar, Carlos; Danenberg, Kathleen; Pitot, Henry C.
Source:
European journal of biochemistry 1973 v.34 no.2 pp. 347-357
ISSN:
0014-2956
Subject:
absorption; actinomycin D; adenosine; brain; cortisol; glucagon; glutamic acid; guanosine; heart; heat; hydroxyapatite; insulin; kidneys; liver; pH; pyridoxal; rats; tissues; tyrosine; tyrosine transaminase
Abstract:
... 1 Tyrosine aminotransferase may be separated into four isolatable forms on hydroxyapatite columns. Form I is found in kidney, heart, brain and other tissues while forms II, III and IV appear to be unique to the liver in the rat. Forms II, III and IV were purified more than 1000-fold from liver while form I was purified 30-fold from kidney and heart. 2 The several forms have been compared kinetical ...
DOI:
10.1111/j.1432-1033.1973.tb02766.x

44. THE Food requirements of blepharidopterus angulatus (heteroptera: miridae) as a predator of the lime aphid, eucallipterus tiliae

Author:
GLEN, D.M.
Source:
Entomologia experimentalis et applicata 1973 v. no. pp. 255-267
ISSN:
0013-8703
Subject:
Blepharidopterus angulatus; Eucallipterus tiliae; adults; diet; eggs; females; food availability; honeydew; instars; leaves; males; nymphs; oviposition; parasitism; tissues
Abstract:
... The weight of lime aphids consumed by B. angulatus increases at an increasing rate during nymphal development, with the fifth instar contributing 50% of the total consumption. Males and females reach different adult weights, but show no difference in food consumption. The efficiency of conversion of aphid food into body tissues diminishes from the third instar onwards. Females continue to oviposit ...
DOI:
10.1111/j.1570-7458.1973.tb00271.x

45. Fate of Mirex-14C During and After a 28-Day Feeding Period to a Lactating Cow

Author:
H. Wyman Dorough; G. Wayne Ivie
Source:
Journal of environmental quality 1974 v.3 no.1 pp. 65-67
ISSN:
0047-2425
Subject:
Jersey; brain; cows; dairy animals; diet; feces; fire ants; food contamination; gas chromatography; gelatin; insecticide residues; kidneys; lactating females; lactation; liver; meat; mirex; muscles; pastures; thin layer chromatography; tissues; whole milk
Abstract:
... The use of mirex [1,3,4-methenododecachlorooctahydro-2H-cyclobuta (c,d) pentalene] for the control of the imported fire ant in pasture land is a potential source of contamination of meat and milk of dairy animals. To determine the level and nature of the residues which might occur should the animals consume the insecticide in the diet, mirex-¹⁴C was administered via gelatin capsules twice daily to ...
DOI:
10.2134/jeq1974.00472425000300010018x

46. Nutritive Value of Crownvetch Forage as Influenced by Structural Constituents and Phenolic and Tannin Compounds

Author:
J. C. Burns; W. A. Cope
Source:
Agronomy journal 1974 v.66 no.2 pp. 195-200
ISSN:
0002-1962
Subject:
Securigera varia; acid detergent fiber; acid insoluble lignin; clones; flowering date; flowers; harvest date; internode length; late flowering; lignin; neutral detergent fiber; nutritive value; petioles; phenols; regrowth; spring; stems; tannins; tissues; vigor
Abstract:
... Two experiments were conducted to evaluate the nutritive value of crownvetch (Coronilla varia L.) forage by in vitro dry matter disappearance (IVDMD). Structural constituents [neutral detergent fiber (NDF), acid detergent fiber (ADF), acid detergent lignin (lignin)] secondary compounds (tannin and phenols) were determined and were related to IVDMD. In experiment I, leaves were discarded from 40 cl ...
DOI:
10.2134/agronj1974.00021962006600020004x

47. Studies of Absorption of 32P, 59FE, and 45CA by Water‐Milfoil (Myriophyllum Exalbescens Fernald)

Author:
Joseph A. DeMarte; Richard T. Hartman
Source:
Ecology 1974 v.55 no.1 pp. 188-194
ISSN:
0012-9658
Subject:
Myriophyllum; absorption; aquatic plants; autoradiography; field experimentation; freshwater; phosphates; phosphorus; roots; sand; shoots; tissues; vascular plants
Abstract:
... A method was developed for determining uptake and translocation of mineral elements by intact submersed aquatic vascular plants in laboratory and field studies. Autoradiographs and radioactivity measurements provided direct evidence that 32P, 59Fe, and 45Ca were absorbed by the roots of Myriophyllum exalbescens and translocated to the shoot tissues. Similar evidence was obtained for absorption of ...
DOI:
10.2307/1934635

48. Toxoplasma-like Encephalomyelitis in the Horse

Author:
Jill Beech; D. C. Dodd
Source:
Veterinary pathology v.11 no.1 pp. 87-96
ISSN:
1544-2217
Subject:
Protozoa; Toxoplasma; animal pathology; antibodies; blood serum; brain; bronchopneumonia; cerebrospinal fluid; encephalitis; hemagglutination inhibition test; hemorrhage; horses; immunoglobulin A; immunoglobulin G; immunoglobulin M; lungs; necrosis; spinal cord; tissues
Abstract:
... Eight horses with progressive neurologic signs had encephalomyelitis associated with toxoplasma-like protozoan bodies. There were scattered hemorrhagic, malacic lesions in white and grey matter in the brain and spinal cord. Microscopically there was malacia, mononuclear cell infiltration, especially perivascularly, gliosis, and various degrees of necrosis and hemorrhage. Other tissues were normal, ...
DOI:
10.1177/030098587401100110

49. Uptake and Translocation of Ammonia by Freshwater Hydrophytes

Author:
Dale W. Toetz
Source:
Ecology 1974 v.55 no.1 pp. 199-201
ISSN:
0012-9658
Subject:
ammonia; aquatic plants; freshwater; roots; tissues
Abstract:
... The roots of two species of freshwater hydrophytes are capable of absorbing 15NH4 and translocating labeled N to apical tissues under laboratory conditions. ...
DOI:
10.2307/1934637

50. Effect of pH on the Absorption of Boron by Excised Barley Roots

Author:
J. J. Oertli; E. Grgurevic
Source:
Agronomy journal 1975 v.67 no.2 pp. 278-280
ISSN:
0002-1962
Subject:
Hordeum vulgare; barley; boric acid; boron; nutrient uptake; nutrients; pH; roots; tissues
Abstract:
... In order to obtain information on the mechanism of B uptake and on the relative importance of the two forms H₃BO₃ and H₂BO₃⁻ for net B absorption, the uptake of B by excised barley (Hordeum vulgure var. Briggs) was investigated using solutions having pH values from 6 to 10 and B concentrations from 1 to 10 ppm. The B uptake and final B contents after 1 hour absorption periods increased nearly line ...
DOI:
10.2134/agronj1975.00021962006700020028x