RMPG0GHK–. Diseases of greenhouse crops and their control . Vegetables; Plant diseases; Plant diseases. Fig. i6. Beet Diseases. a. Nematode or root knot, b. Crown gall, t. Cercospora leaf spot (after Halsted), d. spores of Cercospora beticola (after Scbwarze).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Taubenhaus, Jacob Joseph, 1884-1937. New York : E. P. Dutton
RMT1HY7R–Diseases of crop-plants in the Diseases of crop-plants in the Lesser Antilles diseasesofcroppl00nowe Year: 1923 DISEASE OF SUGAR CANE 319 Fig. 130 Cercospora vaginae From Wahber & Went
RFPJ9HA7–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RMMCKCBC–. Fig. 130 Cercospora vaginae From Wahber & Went
RF2FNRH4E–Leaves of rhododendron with brown spots caused by fungal diseases
RFPJDC37–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RF2AP7XC9–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RFK287X6–Herbal plant: Indian pokeweed. Phytolacca acinosa. which is locally used relief from pain.
RF2F2CNBM–Ripe papaya With Asperisperium Caricea Disease
RF2JPAG2A–Cercospora leaf spot (Cercospora beticola) infection on a sugar beet plant.
RM2C1DAB1–Frogeye leaf spot (Cercospora sojina) discreet circular lesions on soybean leaf, Florida, USA, May
RM2AWMBBN–Journal of agricultural research . Apr. 3.1916 Climatic Conditions and Cercospora beticola 33 ture usually lower among the beet plants than the temperature shown bythe Weather Bureau records, which were taken on top of a four-storybuilding about a mile from the sugar-beet field. These wide variationsbetween the air temperature taken near the ground among the plantsand that taken 5 feet above the field and between the former and thetemperature taken at the Weather Bureau stations show that for correla-tion with fungous activities only the records taken among the plantsshould be used. Relative;
RM2C1D9EF–Early leaf spot (Cercospora arachidicola) fungal disease necrotic lesions on a peanut leaflet, North Carolina, USA
RFRK2WB7–Banana Black Sigatoka Leaf Symptoms
RM2C1D9ED–Early leaf spot (Cercospora arachidicola) fungal disease necrotic lesions on a peanut leaflet, North Carolina, USA
RMPG3P1W–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. 3H FUNGOUS DISEASES OF PLANTS. Fig. 146. Cercospora Gossypina: an Isolation Culture XX. CERCOSPORA: OTHER SPECIES Parallel cultures on diverse culture media of a number of species on related hosts would be of special interest. As in the case of Phyllosticta, subse- quently discussed, numerous leaf spots are produced by members of this genus Cerco- spora. Very few cross inocula- tions have been made, and little is really known concerning the limitations of species. When the host pla
RMAPG7NC–Leaf stem spot Phomopsis sp on asparagus stem Thailand
RMT1J0A4–Diseases of truck crops and Diseases of truck crops and their control diseasesoftruckc00taubuoft Year: [1918] Fig. 70. Celery Diseases. a. Cercospora leaf spot, h. conidiophores and conidia of Cercospo (afterDuggar and Baily), c. Rhizoctonia root rot.
RMAPF9X1–Early leaf spot (Passalora arachnidicola) leaf spots on peanut leaf
RMMCKAKH–. Fig. 179. â Cowpea leaflet spotted with powdery-mildew. Original. Fig. 180. ââ Leaflet of cowpea showing Cercospora spots. Original.
RMBJG3TY–Leaf & stem spot (Phomopsis sp.) on asparagus stem, Thailand
RFPJDC8Y–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RM2C1D9EK–Early & late leaf spot (Passalora arachnidicola) & (Mycosphaerella berkleyi) lesions on peanut leaf, North Carolina, May
RF2ATJ10F–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RM2EH6KXG–Narrow brown spot (Sphaerulina oryzina) linear necrotic lesions on a rice leaf, Thailand
RF2F2CPAP–Green And Ripe Papaya With Black Spot Disease
RM2DRXJNE–Angular leaf spot (Phaeoisariopsis griseola) lesions on green bean (Phaseolus vulgaris) leaf, Thailand
RF2JPAG1H–Cercospora leaf spot (Cercospora beticola) infection on a sugar beet plant.
RM2AJ5E66–Fungous diseases of plants . Fu;. 147. Cercosporacircumscissa: Spots onAlmond. (After Pierce) FUNGI IMPERFECTI 315 Padi, but it is important as an almond tree disease^ in Californiaand elsewhere. Cercospora Nicotianae . & E. The more commonly observedleaf spot or frog eye of the tobacco has been reported from manytobacco-growing regions, but does not appear to be a disease of. Fig. 148. Cercospora c/rcua/sc/ss.i. (After Pierce)a, tuberculate stroma; /, conidiophores and conidia any great importance, and doubtless many different fungi are con-cerned in the production of spots more or less sim
RFRK2WHR–Banana Black Sigatoka Leaf Symptoms
RF2F2CPM6–Fungal Infected Papaya
RMPG4CGE–. Diseases of truck crops and their control . Vegetables. / â '^'â¢'f.... Fig. 55. Diseases OF the Okra. a. Okra field badly affected with the Texas Root rot, to the front two resistant hills, b. root knot, c. Cercospora leaf spot.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Taubenhaus, Jacob Joseph, 1884-1937. New York : E. P. Dutton & Co.
RMT1HY7T–Diseases of crop-plants in the Diseases of crop-plants in the Lesser Antilles diseasesofcroppl00nowe Year: 1923 Fig. 130 Cercospora vaginae From Wahber & Went Fi-. 132 Leptosphaeria Sacchari. Akci and Spore From Memoirs, Depi. Agri., India
RMMCKWGE–. Fig. 70. Celery Diseases. a. Cercospora leaf spot, h. conidiophores and conidia of Cercospo (afterDuggar and Baily), c. Rhizoctonia root rot.
RFPJDXRR–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RF2APPFPY–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RM2DRXJD9–Angular leaf spot (Phaeoisariopsis griseola) lesions on green bean (Phaseolus vulgaris) leaf, Thailand
RM2AJ1BK1–Cane sugar; a textbook on the agriculture of the sugar cane, the manufacture of cane sugar, and the analysis of sugar-house products . Fig. 48 Fig. 49 eventually becomes black. In Fig. 48 are shown the spores after Kriiger.Their length is from 19-6 to 40 microns, with an average of 25-2 microns,and with a breadth of 7 microns. The disease has been reported from Java,British Guiana, Porto Rico, Santo Domingo, Cuba, Jamaica, Louisiana andIndia. Black Spot of the Leaf Base. ^ Cercospora acerosum (Dickoff and Hein).—Thisdisease causes a blackening of the leaf base. The spores, shown in Fig. 49, TH
RFRK2XR7–Banana Black Sigatoka Leaf Symptoms
RF2F2CPHA–Round Papaya With Fungi
RMPG44R0–. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. FUNGI IMPERFECTI (dEUTEROMYCETES) 267 fungus which causes leaf spot of beets, Cercospora beticola. The form genus Fusarium (Fig. 109), established by Link in 1809, is one which has come into prominence recently as associated with the production of serious plant diseases. At least eleven species are found on the sweet potato (Fig. 108), and these have been investigated by H. W. WoUenweber' and other mycologists. He finds that the genus has a number of vegetative and spore stages the vari
RMT1JGW7–Diseases of truck crops and Diseases of truck crops and their control diseasesoftruckc00taubuoft Year: [1918] 4tf mi m [? -' ' Fig. 55. Diseases of the Okra. a. Okra field badly affected with the Texas Root rot, to the front two resistant hills, b. root knot, c. Cercospora leaf spot.
RMMCKWH6–. Fig. 70. Celery Diseases. a. Cercospora leaf spot, b. conidiophores and conidia of Cercospora apii (afterDuggar and Baily), c. Rhizoctonia root rot.
RFPJDY39–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RF2ANTGA6–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RM2AJ1B72–Cane sugar; a textbook on the agriculture of the sugar cane, the manufacture of cane sugar, and the analysis of sugar-house products . Fig. 48 Fig. 49 eventually becomes black. In Fig. 48 are shown the spores after Kriiger.Their length is from 19-6 to 40 microns, with an average of 25-2 microns,and with a breadth of 7 microns. The disease has been reported from Java,British Guiana, Porto Rico, Santo Domingo, Cuba, Jamaica, Louisiana andIndia. Black Spot of the Leaf Base. ^ Cercospora acerosum (Dickoff and Hein).—Thisdisease causes a blackening of the leaf base. The spores, shown in Fig. 49, TH
RFRK2X4X–Banana Black Sigatoka Leaf Symptoms
RF2F2CPDK–Fugal Infected Papaya On Tree
RMPG4EMD–. Diseases of economic plants . Plant diseases. 226 DISEASES OF ECONOMIC PLANTS CELERY Leaf spot, early blight, cercosporose {Cercospora Apii Ft.). — The leaf spot is common in both Europe and America, constituting probably the most destructive disease to which the celery plant is subject. It is known from. Fig. 106. —• Cauliflower affected with black rot, (Pseudomonose). Original. Colorado to New Jersey. In Florida in 1906 it is said to have injured 80 per cent of the crop. The crop is largely reduced, and the unsightUness of the spots injures the salability of the product. The spots appear f
RMT0CT14–Dr KW van Gorkom's Oost-Indische Dr. K.W. van Gorkom's Oost-Indische cultures. Opnieuw uitg. onder redactie van H.C. Prinsen Geerligs. [Door J.P. van der Stock et al.] drkwvangorkomsoo02gorkuoft Year: 1917 Fig. 84. Blad met Cercospora eoffeicola. Fig. 85. Koffiestengel met Cercospora eoffeicola.
RMMAB4W3–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Cercospora rosicola Passer. Konidienträger und Konidien, stark vergr. (Nach Saccardo.)
RFPJDC14–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RF2AWC72F–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RM2ANAH5Y–A text-book of mycology and plant pathology . Fig., 108.—Sweet-potato stem rot{Fusarium balatatis). Section throughsweet potato showing blackened ring justbelow surface caused by the stem-rot fun-gus. {After Barter, L. L., U. S. FarmersBull. 714. March ii, 1916.) FUNGI IMPERFECTl (dEUTEROMYCETES) >67 fungus which causes leaf spot of beets, Cercospora beticola. The formgenus Fusarium (Fig. log), established by Link in 1809, is one whichhas come into prominence recently as associated with the productionof serious plant diseases. At least eleven species are found on thesweet potato (Fig. 108),
RFRK2XFE–Banana Black Sigatoka Leaf Symptoms
RF2HXA2H1–A papaya tree is packed with fruits that are covered with white fungal disease of the asperisperium caricae.
RMPG0G4X–. Diseases of greenhouse crops and their control . Vegetables; Plant diseases; Plant diseases. Fig. 74. Violet Diseases. a. Pbyllosticta leaf spot (after Halsted), b. conidiophores and conidia of Marsonia viol<r (after Jones, L. R.), c. speck anthracnose (after Jones and Giddings), d. Cercospora leaf spot (after Halsted).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Taubenhaus, Jacob Joseph, 1884-1937. New York : E.
RMT1H47F–Diseases of truck crops Diseases of truck crops / Ralph E. Smith diseasesoftruckc119smit Year: 1940 24 California Agricultural Extension Service [Cir. ii9 m 'nl iB 1 M JaH 'Hi -oH c Fig. 11.—Carrot blight: A, early (Cercospora) on leaf; 5, same on stem; C, late (Macrosporium) on stem; D, same on leaf. (All enlarged.)
RMMCKWK4–. Fig. 55. Diseases of the Okra. a. Okra field badly affected with the Texas Root rot, to the front two resistant hills, b. root knot, c. Cercospora leaf spot.
RFPJDY9J–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RF2AR991M–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RM2AWMBGB–Journal of agricultural research . ^ i/O/A.. Fig. I.—Cercospora beticola: A, Section of overwintered sugar-beet leaf showing embedded sclerotia-likebody, a, with a mass of old conidiophores, b, from which a new conidium, c, was produced. B. Produc-tion of rather typical conidiophores, b, and conidia, c, from a sclerotia-like mass, a, taken from over-wintered hst material and placed in hanging-drop cultures. Apr. 3, 1916 Climatic Conditions and Cercospora beticola 23 CONIDIA Thiimen (1886, p. 50-54) ^ believed that the spores of Cercospora beti-cola are able to live for a certain length of ti
RF2HA8NG5–Wilting of broad bean plants due to infection.
RFRK2W95–Banana Black Sigatoka Leaf Symptoms
RF2HH9AHT–Sugar beet plants with symptoms of bacterial infection - drying leaves.
RMPG3P1M–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. FUNGI IMPERFECTI 315 Padi, but it is important as an almond tree diseasel in California and elsewhere. Cercospora Nicotianae E. & E. The more commonly observed leaf spot or frog eye of the tobacco has been reported from many tobacco-growing regions, but does not appear to be a disease of. 6 Fig. 148. Cercospora circumscissa. (After Pierce) a, tuberculate stroma; &, conidiophores and conidia any great importance, and doubtless many different fungi are con- cerned in the prod
RMT1HJH7–Diseases of truck crops and Diseases of truck crops and their control diseasesoftruckc00taubuoft Year: [1918] Fig. 23. LETTL'cii Diseases. a Germinating sclerotium of Silerolinia liherliana the cause of lettuce drop, b. section of fruiting cup (apothecium) showing asci, ascospores and paraphyses of .S'. Uberliana, c. section through sclerotium of 6. librrHanii. d. germinating ascospore of .S'. liherliana (a. to d. after F. S. Stevens), e. Cercospora leaf spot.
RMMCKWHD–. Fig. 55. Diseases of the Okra. a. Okra field badly affected with the Texas Root rot, to the front two resistant hills, b. root knot, c. Cercospora leaf spot.
RFPJE1BE–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RF2AT9T7B–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RM2AWMAXD–Journal of agricultural research . o. 2, p. 169-178, pi. 27. 1916. Relation of stomatal movement to infection by Cercospora beticola. InJour. Agr. Research, v. 5, no. 22, p. 1011-1038, 6 fig., pi. 80-81.Shaw, H. B. 1914. An improved cog psychrometer. In Plant World, v. 7, no. 6, p. 183-185,2 fig.Stewart, F. C. 1913. The persistence of the potato late-blight fimgus in the soil. N. Y. Agr. Exp. Sta. Bui. 367, p. 357-361.ThumEn, Felix von. 1886. Die Bekampfimg der Pilzkrankheiten unserer Culturgewachse. 157 p.Wien.Treboux, O. 1914. tjberwinterung vermittels Mycels bei einigen parasitischen Pilzen
RFRK2XFG–Banana Black Sigatoka Leaf Symptoms
RF2HH9AHN–Sugar beet plants with symptoms of bacterial infection - drying leaves.
RMPG4CT7–. Diseases of truck crops and their control . Vegetables. Fig. 23. Lettuce Diseases. a Germinating sclerotium of SderoHnia liberliana the'cause of lettuce drop, 6. section of fruiting cup (aoothecium) showing asci. ascospores and fiaraphyses of S. liberliana. c. section through sclerotium of A. /.â¢;.»w.-^«" J r-^-T-.-.-ating ascospore of 5. «Offnia?ia (.a. ':'. ,. r'-. â - - âvens), e. Cercospora leaf spot.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may n
RMT1J002–Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] CERCOSPORA 487 proved by inoculation experiments that when the spores are placed on a young celery leaf, a disease spot becomes evident about the fourth day, and that mature spores are produced in four weeks. The pale olive sporophores originate from colourless mycelium in the tissue of the leaf, and come to the surface of the leaf in clusters through the stomata of the leaf. Spores Fig. 147.—Cercospora apii. i, celery leaf attacked by the fungus ; 2, fruit of fungus, highly
RMMCKWFT–. Fig. 11.—Carrot blight: A, early (Cercospora) on leaf; 5, same on stem; C, late (Macrosporium) on stem; D, same on leaf. (All enlarged.)
RFPJE104–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RF2AW0AJC–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RM2CDCCD0–. Fungous diseases of plants, with chapters on physiology, culture methods and technique . ,color, septation, etc., of sporesand conidiophores, or in themacroscopic appearances ofspots, are generally employedin distinguishing species.Among many other species the following upon important hostsmay be mentioned. Cercospora Viticola Sacc. This fungus produces a spot knownas grape leaf blight. It has not been productive of serious damiageexcept during unusually moist seasons. Thespots are first evident on the lower surface ofthe leaf, and it is also upon this surface thatthe conidiophores are devel
RFRK2XFD–Banana Black Sigatoka Leaf Symptoms
RMPG14WF–. Manual of tree diseases . Trees. 102 MANUAL OF TREE DISEASES Leaf-Spot Caused by Cercospora tilim Peck The leaves of the basswood are often affected by this disease. Large brown dead areas are formed at the tip or along the mar- gin of the leaf (Fig. 10). A broad yellowish border surromids. Fig. 10. — Leaf-spot of basswood. the spot. The fruiting bodies of the causal pathogene are in- conspicuous. For the general life history and colitrol of leaf- spot fungi, see page 33.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readabili
RMT1HYXK–Diseases of cultivated plants and Diseases of cultivated plants and trees diseasesofcultiv00massuoft Year: [1910?] CERCOSPORA 485 saturated with moisture, and a temperature ranging between 75 and 90 degrees F. The disease first appeared in a corner of a house, and within four days every plant in the house, which was 100 ft. long, was killed. At this time I visited the house, obtained material, and suggested preventive methods. Within three months of this occurrence, the disease was reported from various other localities, and the season follow- ing it was generally distributed in the London d
RMMCK7WX–. Fig. i6. Beet Diseases. a. Nematode or root knot, h. Crown gall, c. Cercospora leaf spot (after Halsted), d. spores of Cercospora beticola (after Schwarze).
RFPJE0PW–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RF2AXW65Y–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RM2CDCCC7–. Fungous diseases of plants, with chapters on physiology, culture methods and technique . Fig. 147. Cercosporacircumscissa: Spots onAlmond. (After Pierce) FUNGI IMPERFECTI 315 Padi, but it is important as an almond tree disease^ in Californiaand elsewhere. Cercospora Nicotianae E. & E. The more commonly observedleaf spot or frog eye of the tobacco has been reported from manytobacco-growing regions, but does not appear to be a disease of. Fig. 148. Cercospora circumscissa. (After Fierce)a, tuberculate stroma; b^ conidiophores and conidia any great importance, and doubtless many different fungi
RFRK2WX1–Banana Black Sigatoka Leaf Symptoms
RMPG4EM2–. Diseases of economic plants . Plant diseases. 242 DISEASES OF ECONOMIC PLANTS ent upon horse-radish, but does not usually become serious. Leaf spot, cercosporose {Cercospora Armoracioe Sacc).— This spot is much like that of ramulariose. LETTUCE Sclerotiniose, drop, wilt (Sclerotinia Libertiana Fckl.).— The disease begins with wilting of the outer lower leaves,. Fig. 110. — Sclerotia of Sclerotinia from lettuce germinating. which droop and fall flat upon the ground; a similar fate rapidly overtakes the inner leaves, and so on over the whole plant, until within a few days the entire plant is d
RMT1JFB5–Diseases of crop-plants in the Diseases of crop-plants in the Lesser Antilles diseasesofcroppl00nowe Year: 1923 DISEASES OFlBANANA 251 of these diseases as it is quite probable that they will be met with sooner or later. Black Spot of Leaves. This leaf disease has been reported from several localities in Jamaica, where it is confined to good soils containing a high proportion of marl. It begins with tiny black spots on the main veins of the leaf-blade, which increase in size and become Fig. 96 Cercospora Musarum Bull. 6, Dept. Agri., Jamaica lenticular and are then often surrounded by a n
RMMAB4W5–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . lang 3,3- Cercospora uebulosa Sacc. Kouidienträger und Konidieu, stark vergr. (Nach Saccardo.)
RFPJDBM7–Disease of flower hydrangea hortensia due to lack of water and pollution. Armillaria mellea, chlorosis virus parasite ascale insects mite acarid
RF2ANDXMT–Close-up green leaf of sweet cherry with damage by ulcers of diseases and fungi of brown spotting of scab monniliosis. Gardening problems. Fungal and viral diseases of plants.
RM2CDCCE1–. Fungous diseases of plants, with chapters on physiology, culture methods and technique . s finally grayish green. Onbean pods a copious development of mycelium occurs, but suchcultures maintainedfor two years gaveno production ofconidia. Abnormalconidia may, how-ever, be developedon this mediumfrom other speciesof Cercospora in cul-ture. Aerial hyphaeshow a tendency toadhere together inslight strands orclusters, and thesmall branches sug-gest an attempt at spore production (Fig. 144, aerial). The im-mersed mycelium is very irregular, with many swollen cells andpeculiar branches (Fig. 144). I
RFRK2WB9–Banana Black Sigatoka Leaf Symptoms
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