Selection processes in a citrus hybrid population using RAPD markers

The objective of this work was to evaluate the processes of selection in a citrus hybrid population using segregation analysis of RAPD markers. The segregation of 123 RAPD markers between 'Cravo' mandarin (Citrus reticulata Blanco) and 'Pêra' sweet orange (C. sinensis (L.) Osbeck) was analysed in a F1 progeny of 94 hybrids. Genetic composition, diversity, heterozygosity, differences in chromosomal structure and the presence of deleterious recessive genes are discussed based on the segregation ratios obtained. A high percentage of markers had a skeweness of the 1:1 expected segregation ratio in the F1 population. Many markers showed a 3:1 segregation ratio in both varieties and 1:3 in 'Pêra' sweet orange, probably due to directional selection processes. The distribution analysis of the frequencies of the segregant markers in a hybrid population is a simple method which allows a better understanding of the genetics of citrus group.

Somatic hybridization between Citrus sinensis (L.) Osbeck and C. grandis (L.) Osbeck

This work had as objective to produce citrus somatic hybrids between sweet oranges and pummelos. After chemical fusion of sweet orange embryogenic protoplasts with pummelo mesophyll-derived protoplasts, plants were regenerated by somatic embryogenesis and acclimatized in a greenhouse. The hybrids of 'Hamlin' sweet orange + 'Indian Red' pummelo and 'Hamlin' sweet orange + 'Singapura' pummelo were confirmed by leaf morphology, chromosome counting and molecular analysis. These hybrids have potential to be used directly as rootstocks aiming blight, citrus tristeza virus, and Phytophthora-induced disease tolerance, as well as for rootstocks improvement programs.

« Testaments de roys, princes et grands seigneurs, et homes doctes; testaments fictifs ». 1306 à 1669. Copies.

Contient : 1 « Testament de GUILLAUME LE HONGRE, chevalier de la ville de Metz... Ceste devise fust faitte devant feste S. Luc euvangeliste, quant il out a millair M.CCC.LIX ans » ; 2 « Testamentum GALESII DE BALMA, domini VALAFINI,... Actum et datum apud Montem Revellum, in castro nostro dicti loci, duodecima mensis augusti, hora meridiei, anno Domini millesimo trecentesimo sexagesimo secundo ». En latin ; 3 « Codicillus GALESII DE BALMA, domini VALAFINI ». Même date. En latin ; 4 « Testament de JEAN DE SAULZ, escuyer, seigneur DE COURTIVRON, chancelier de Bourgongne... Le mardy vint cinquiesme jour du mois de janvier, l'an de grace courant mille trois cent soixante et dix neuf » ; 5 « Testament de CATHERINE D'ESTRABONE, dame D'AUMONT ». Après 1456 ; 6 « Testament de Jean d'Arsonvalle, evesque de Chaalon. Tiré des registres du parlement de Paris ». 23 et 24 août 1416. En latin ; 7 « Testament de messire JEHAN DE CHALLON, prince D'ORENGE et seigneur D'ARLAY,... Faict et donné en mon chastel de Lyons le Saulnyer... le 21 d'octobre 1417... Extraict des registres de l'officialité de l'arcevesché de Bezançon » ; 8 Testament de « CLAUDE DE MONTAGU, chevalier, Sr DE COULCHES, DE LONGVY et D'ESPOISSE,... Le cinquiesme jour de... l'an mil IIII.C. cinquante et trois » ; 9 Extrait du testament de Pierre Berland, archevêque de Bordeaux. Samedi 5 février 1457. En latin ; 10 « Testamentum illustris comitis Troyae, Joannis Cossa, domini de Grimaldo et de Marignana, magni Provinciae senescalli ». Dimanche 15 septembre 1476. En latin ; 11 « Testament d'Olivier, seigneur de La Marche, conseiller et premier maistre d'hostel de Mr l'archiduc d'Austriche ». Bruxelles, 8 octobre 1501 ; 12 « Testament de PHILIPPE DE MONTAGU, comtesse DE JOIGNY » ; 13 « Testament de... Loys, Sr de Graville, admiral de France... Au chasteau de Marcoussys, l'an 1516, le jeudi 26 juing » ; 14 « Testamentum Claudii de Seyssel, archiepiscopi Taurinensis ». Turin, dimanche 27 mai 1520. En latin ; 15 Testament de « GUILLAUME BUDE, conseiller du roy, maistre des requestes ordinaire de son hostel, et maistre de sa librairie... 23 juin 1536 » ; 16 Testament de « Guillaume Du Bellay, seigneur de Langey et Glatigny,... lieutenant general en Italye... Turin, le 13 novembre 1542 » ; 17 « Testament de Michel Nostradamus,... docteur en medecine et astrophile de la ville de Salon... 17 juin 1566 » ; 18 « Testament de Caesar de Nostredame, gentilhomme ordinaire de la chambre du roy... Salon, 23 janvier 1630 » ; 19 Testament d'« ODINET GODRAN, baron D'ANTILLY, president au parlement de Bourgoigne ». 3 février 1581 ; 20 « Testament de JACQUELINE DE ROHAN, marquise DE ROTHELIN ». Décédée en 1586 ; 21 Testament de FRANÇOIS, duc D'ALENÇON, fils de Henri II, roi de France. Château-Thierry, 8 juin 1584 ; 22 Testament de « JEANNOT PATOILLET, protonotaire du S. Siege... demeurant à S. Ligier ». 22 juillet 1585 ; 23 Lettres de légitimation accordées par HENRI III, roi de France, à « Lune Patouillet, fille naturelle de Jeannot Patouillet et Jeanne Sailliot, du village d'Estrevaut, bailliage de Dijon... Donné à Dijon, au mois de febvrier, l'an 1575 » ; 24 à 26 Épitaphes d'«Odet Patoillet, d'Estrevaux », Richard Patoillet, et Jeannot Patoillet, le protonotaire. 1543, 1546, 1585. La première est en français, les deux autres sont en latin ; 27 Testament de « JAQUES DE GERMIGNY, Sr DE GERMOLLES, chevalier de l'ordre du roy, conseiller et maistre d'hostel ordinaire de sa maison, et cy devant ambassadeur pour S. M. en Levant », et de « JEHANNE BORLETTE, femme dud. Sr de Germigny,... Novembre 1585, en [la] ville de Chalon » ; 28 « Advis de conseil au proces de Mrs [Henri] de Vienne », baron de Chevreau, et François de Vienne, chevalier de Malte, « contre [Claude de La Baume], archevesque de Besançon ». Avant 1582. Commence par un extrait du testament de « dame JEHANNE DE MONBELIARD, [femme de] Loys de Chalon, prince d'Oranges et Sr d'Arlay » ; 29 Testament de « François, filz de feu Henry de Vienne, baron de Chevreaul,... Mostier, 25 octobre 1596 » ; 30 « Testamentum ROBERTI, cardinalis BELLARMINI,... Die 23 januarii, anno 1611 ». En latin ; 31 « Testament de FRANÇOIS PITHOU,... 20 novembre 1617 » ; 32 « Testament de PHILIPPE-GUILLAUME, prince D'ORANGE,... Faict à Bruxelles, le 20 de febvrier 1618 » ; 33 « Testament de messire GUILLAUME DU VAIR, evesque de Lizieux et garde des sceaux de France ». Du 10 juin au 5 juillet 1620 ; 34 « Testament de messire ANTHOINE FAVRE, baron de Peroges, de Domessin,... premier president au senat de Savoye... Faict à Chambery... ce 15 febvrier 1624 » ; 35 « Testamento di Leonor de Semeur, sigr de Tremon,... governatore per il re christianissimo di Francia della citta et paese di Macon di Bergongna... Nel... monasterio di molto reverendi padri capucini... sito sopra le fini d'Asti ». 14 juillet 1625. En italien ; 36 « Testament de Gabriel de Ste Marie, archevesque de Reims... Reims, 27 septembre 1628 » ; 37 « Exemplar testamenti cardinalis LUDOVISII ». Bologne, 10 avril 1629. En latin ; 38 « Testament de Nicolas Claude Fabri, seigneur de Peiresc, seigneur et abbé de Guistres, baron de Rians, conseiller du roy en sa cour de parlement de Provence... Aix, 22 juin 1637 » ; 39 Pièce imprimée, de 16 pages, contenant le « Testament de Mr le cardinal DE RICHELIEU ». Narbonne, 23 mai 1642 ; 40 « Testament d'ANNE DE MONTAFIE, comtesse DE SOISSONS,... Faict en mon chasteau de Creil, le 30 octobre 1642 » ; 41 « Premier testament de Gabriel de Syon,... prestre, docteur on theologie... et professeur royal... es langues orientales... Ligny le Chastel, 8 juin 1648 » ; 42 « Second Testament » du même. « Fontaine en Duesmois, 29 juin 1648 » ; 43 « Testament de CLAUDE DE SAUMAISE, chevalier de l'ordre du roy et conseiller en ses conseils d'Estat et privé... Spa, le 30 aoust 1653 » ; 44 Testament de « JEAN QUENAULT, conseiller du roy en ses conseils, et cy devant secretaire des commandemens de la feue reine Marie de Medicis,... Paris, 4 febvrier 1655 » ; 45 « Testament et codicille de Pierre Gassendi, prestre, prevost de Digne et professeur royal aux mathematiques à Paris ». 17 et 18 septembre 1655 ; 46 « Testament de Jules, cardinal Mazarin, duc de Nivernois et Donziois, pair de France ». Vincennes, 3 à 7 mars 1661 ; 47 « Testament d'Anne d'Autriche, royne de France et de Navarre... S. Germain en Laye, 13 aoust 1665 » ; 48 Pièce imprimée, de 6 pages, contenant le testament de « LOUIS DE LA RIVIERE, evesque de Langres... Petit Bourg, 22 may 1669 » ; 49 « Testamentum THEOPHILI VIAUT,... Datum in aula burgundica ». 1626. En latin ; 50 « Ejusdem epitaphium ». En latin ; 51 « Testamentum christianum cardinalis RICHELII ». En latin ; 52 « Testamentum politicum ». En latin ; 53 « Testamento della citta di Candia. Copia tratta da Pasquino, notaro publico ». En italien ; 54 « Testamento del Ruyseñor de Sa Eminencia ». En espagnol ; 55 « Epitaphio del Ruyseñor ». En espagnol

Citrus asymmetric somatic hybrids produced via fusion of gamma-irradiated and iodoacetamide-treated protoplasts

The objective of this study was to produce citrus somatic asymmetric hybrids by fusing gamma-irradiated protoplasts with iodoacetamide-treated protoplasts. Protoplasts were isolated from embryogenic suspension cells of grapefruit (Citrus paradisi Macfad.) cultivars Ruby Red and Flame, sweet oranges (C. sinensis Osbeck) 'Itaboraí', 'Natal', Valencia', and 'Succari', from 'Satsuma' (C. unshiu Marcow.) and 'Changsha' mandarin (C. reticulata Blanco) and 'Murcott' tangor (C. reticulata x C. sinensis). Donor protoplasts were exposed to gamma rays and receptor protoplasts were treated with 3 mmol L-1 iodoacetamide (IOA), and then they were fused for asymmetric hybridization. Asymmetric embryos were germinated, and the resulting shoots were either grafted onto sour orange, rough lemon or 'Swingle' (C. paradisi x Poncirus trifoliata) x 'Sunki' mandarin rootstock seedlings, or rooted after dipping their bases in indol-butyric acid (IBA) solution. The products were later acclimatized to greenhouse conditions. Ploidy was analyzed by flow cytometry, and hybridity was confirmed by amplified fragment length polymorphism (AFLP) analysis of plantlet DNAsamples. The best treatment was the donor-recipient fusion combination of 80 Gy-irradiated 'Ruby Red' protoplasts with 20 min IOA-treated 'Succari' protoplasts. Tetraploid and aneuploid plants were produced. Rooting recalcitrance was solved by dipping shoots' stems in 3,000 mg L-1 IBA solution for 10 min.

Faunistic analysis of Carabidae and Staphylinidae (Coleoptera) in five agroecosystems in northeastern São Paulo state, Brazil

The objective of this study was to determined species composition and community structure of Carabidae and Staphylinidae in five areas of forest fragment and soybean/corn crops or orange orchard, from December 2004 to May 2007. Beetles were captured in pitfall traps distributed along two parallel transects of 200 m in length, placed across crop land/forest boundary fragment, with 100 m each. The Shannon-Wiener diversity and evenness indexes and Morisita similarity index were calculated. The carabids Abaris basistriatus Chaudoir, Calosoma granulatum Perty, Megacephala brasiliensis Kirby, Odontochila nodicornis (Dejean) and Selenophorus seriatoporus Putzeys. are dominant and are widely distributed in northeastern São Paulo state, Brazil. Point-scale species diversity was greatest at the transition between forest fragment and cultivated area. The carabid and staphylinid communities of the forest fragment were more similar to the community of orange orchard than that of soybean/corn crops.

Stability of Citrus tristeza virus protective isolates in field conditions

The objective of this work was to monitor the maintenance of Citrus tristeza virus (CTV) protective isolates stability in selected clones of 'Pêra' sweet orange (Citrus sinensis), preimmunized or naturally infected by the virus, after successive clonal propagations. The work was carried out in field conditions in the north of Paraná State, Brazil. Coat protein gene (CPG) analysis of 33 isolates collected from 16 clones of 'Pêra' sweet orange was performed using single strand conformational polymorphism (SSCP). Initially, the isolates were characterized by symptoms of stem pitting observed in clones. Then viral genome was extracted and used as template for the amplification of CPG by reverse transcription polimerase chain reaction (RTPCR). RTPCR products electrophoretic profiles were analyzed using the Jaccard coefficient and the UPGMA method. The majority of the clones had weak to moderate stem pitting symptoms and its CTV isolates showed alterations in the SSCP profiles. However, the stability of the protective complex has been maintained, except for isolates from two analised clones. Low genetic variability was observed within the isolates during the studied years.

Use of recovered frying oils in chicken and rabbit feeds: effect on the fatty acid and tocol composition and on the oxidation levels of meat, liver and plasma

The addition of some fat co- and by-products to feeds is usual nowadays; however, the regulations of their use are not always clear and vary between countries. For instance, the use of recycled cooking oils is not allowed in the European Union, but they are used in other countries. However, oils recovered from industrial frying processes could show satisfactory quality for this purpose. Here we studied the effects of including oils recovered from the frying industry in rabbit and chicken feeds (at 30 and 60 g/kg, respectively) on the fatty acid (FA) and tocol (tocopherol + tocotrienol) compositon of meat, liver and plasma, and on their oxidative stability. Three dietary treatments (replicated eight times) were compared: fresh non-used oil (LOX); oil discarded from the frying industry, having a high content of secondary oxidation compounds (HOX); and an intermediate level (MOX) obtained by mixing 50 : 50 of LOX and HOX. The FA composition of oil diets and tissues was assessed by GC, their tocol content by HPLC, the thiobarbituric acid value was used to assess tissue oxidation status, and the ferrous oxidation-xylenol orange method was used to assess the susceptibility of tissues to oxidation. Our results indicate that FA composition of rabbit and chicken meat, liver and plasma was scarcely altered by the addition of recovered frying oils to feed. Differences were encountered in the FA composition between species, which might be attributed mainly to differences in the FA digestion, absorption and metabolism between species, and to some physiological dietary factors (i.e. coprophagy in rabbits that involves fermentation with FA structure modification). The α-tocopherol (αT) content of tissues was reduced in response to the lower αT content in the recovered frying oil. Differences in the content of other tocols were encountered between chickens and rabbits, which might be attributable to the different tocol composition of their feeds, as well as to species differences in the digestion and metabolism of tocols. Tissue oxidation and susceptibility to oxidation were in general low and were not greatly affected by the degree of oxidation of the oil added to the feeds. The relative content of polyunsaturated fatty acids/αT in these types of samples would explain the differences observed between species in the susceptibility of each tissue to oxidation. According to our results, oils recovered from the frying industry could be useful for feed uses.

Performance of 'Oneco' mandarin on six rootstocks in South Brazil

The objective of this work was to assess the effect of six rootstocks on yield, fruit quality, and growth of 'Oneco' mandarin during the first seven harvesting seasons, in Butiá, Rio Grande do Sul State, Brazil. The rootstocks evaluated were: 'Swingle' citrumelo (Citrus paradisi × Poncirus trifoliata), 'Caipira' orange (C. sinensis), 'Troyer' citrange (C. sinensis × P. trifoliata), 'Rangpur' lime (C. limonia), 'Volkamer' lemon (C. volkameriana), and 'Flying Dragon' trifoliata orange (P. trifoliata var. monstrosa). Plants budded onto 'Flying Dragon' had the lowest vegetative development, which indicates the dwarfing characteristics of this rootstock, and had the highest mean production efficiency, despite low yield. Plants grafted on 'Volkamer' lemon and 'Rangpur' lime had the highest alternate bearing. Under the experimental conditions evaluated, the most adequate rootstocks for mandarin 'Oneco' are 'Swingle' citrumelo and 'Troyer' citrange, regarding fruit yield and quality.

Use of recovered frying oils in chicken and rabbit feeds: effect on the fatty acid and tocol composition and on the oxidation levels of meat, liver and plasma

The addition of some fat co- and by-products to feeds is usual nowadays; however, the regulations of their use are not always clear and vary between countries. For instance, the use of recycled cooking oils is not allowed in the European Union, but they are used in other countries. However, oils recovered from industrial frying processes could show satisfactory quality for this purpose. Here we studied the effects of including oils recovered from the frying industry in rabbit and chicken feeds (at 30 and 60 g/kg, respectively) on the fatty acid (FA) and tocol (tocopherol1tocotrienol) compositon of meat, liver and plasma, and on their oxidative stability. Three dietary treatments (replicated eight times) were compared: fresh non-used oil (LOX); oil discarded from the frying industry, having a high content of secondary oxidation compounds (HOX); and an intermediate level (MOX) obtained by mixing 50 : 50 of LOX and HOX. The FA composition of oil diets and tissues was assessed by GC, their tocol content by HPLC, the thiobarbituric acid value was used to assess tissue oxidation status, and the ferrous oxidation-xylenol orange method was used to assess the susceptibility of tissues to oxidation. Our results indicate that FA composition of rabbit and chicken meat, liver and plasma was scarcely altered by the addition of recovered frying oils to feed. Differences were encountered in the FA composition between species, which might be attributed mainly to differences in the FA digestion, absorption and metabolism between species, and to some physiological dietary factors (i.e. coprophagy in rabbits that involves fermentation with FA structure modification). The a-tocopherol (aT) content of tissues was reduced in response to the lower aT content in the recovered frying oil. Differences in the content of other tocols were encountered between chickens and rabbits, which might be attributable to the different tocol composition of their feeds, as well as to species differences in the digestion and metabolism of tocols. Tissue oxidation and susceptibility to oxidation were in general low and were not greatly affected by the degree of oxidation of the oil added to the feeds. The relative content of polyunsaturated fatty acids/aT in these types of samples would explain the differences observed between species in the susceptibility of each tissue to oxidation. According to our results, oils recovered from the frying industry could be useful for feed uses.

Missale [avec notation en neumes].

(C. Denoël)

Genetic transformation of sweet oranges with the D4E1 gene driven by the AtPP2 promoter

The objective of this work was to produce transgenic 'Pêra' and 'Valência' sweet orange plants using the D4E1 gene driven by the Arabidopsis thaliana phloem protein (AtPP2) promoter and to quantify transgene expression in different transformation events. Genetic transformation experiments were carried out with epicotyl segments co‑cultivated with Agrobacterium tumefaciens. Six plants from 'Pêra' sweet orange and seven plants from 'Valência' sweet orange were confirmed as different transgenic events by means of the polymerase chain reaction (PCR) and the Southern blot techniques. Transgene expression was quantified using real‑time quantitative PCR. D4E1 gene expression levels vary from 5 up to 50 times among different transformation events.

Drosophila rely on learning while foraging under semi-natural conditions

Learning is predicted to affect manifold ecological and evolutionary processes, but the extent to which animals rely on learning in nature remains poorly known, especially for short-lived non-social invertebrates. This is in particular the case for Drosophila, a favourite laboratory system to study molecular mechanisms of learning. Here we tested whether Drosophila melanogaster use learned information to choose food while free-flying in a large greenhouse emulating the natural environment. In a series of experiments flies were first given an opportunity to learn which of two food odours was associated with good versus unpalatable taste; subsequently, their preference for the two odours was assessed with olfactory traps set up in the greenhouse. Flies that had experienced palatable apple-flavoured food and unpalatable orange-flavoured food were more likely to be attracted to the odour of apple than flies with the opposite experience. This was true both when the flies first learned in the laboratory and were then released and recaptured in the greenhouse, and when the learning occurred under free-flying conditions in the greenhouse. Furthermore, flies retained the memory of their experience while exploring the greenhouse overnight in the absence of focal odours, pointing to the involvement of consolidated memory. These results support the notion that even small, short lived insects which are not central-place foragers make use of learned cues in their natural environments.

Heran nanosuodatus: raaka-ainekoostumuksen ja prosessiolosuhteiden vaikutus kalvon likaantumiseen

Työssä tutkittiin kalvon likaantumiseen vaikuttavia tekijöitä juoksuteheran nanosuodatuksessa. Tutkimuksessa käytettiin Desal-5 DK kalvoa. Heran nanosuodatukset suoritettiin yhden spiraalimoduulin käsittävää pilot -mittakaavaista suodatuslaitteistoa käyttäen. Työssä selvitettiin suodatettavan heran iän, pastörointilämpötilan, pH:n, suodatuslämpötilan sekäheran sisältämän juustopölyn, lisätyn kalsiumkloridin määrän ja rasvan laadun vaikutusta permeaattivuohon. Jokaista tekijää testattiin kahta eri muuttujaa käyttäen. Työssä tutkittiin myös kahden samanlaisen kalvon välisiä läpäisevyyseroja. Heran pastörointilämpötila, pH ja suodatuslämpötila osoittautuivat kalvon likaantumisen kannalta tärkeimmiksi tekijöiksi heran nanosuodatuksessa. Permeaattivuo oli korkeampi suodatettaessa 74 ºC lämpötilassa pastöroitua heraa, kuin 78 ºC lämpötilassa pastöroitua. Hera suodattui paremmin silloin, kunsen pH oli säädetty 5,8:aan, kuin heran pH:n ollessa säädettynä 5,2:een. Suodatettaessa 18 ºC suodatuslämpötilaan temperoitua heraa havaittiin korkeampi permeaattivuo kuin 12 ºC lämpötilaan termostoitua heraa suodatettaessa. Heran sisältämä pölyn määrä, rasvan laatu ja heran ikä havaittiin tilastollisesti merkityksettömiksi tekijöiksi sekä heran suodattuvuuden, että kalvon puhdistuvuuden kannalta. Kalsiumkloridin lisääminen heraan ennen suodatusta vaikuttivain kalvon suodatuksen jälkeiseen peseytyvyyteen. Kalvo puhdistui paremmin, kun kalsiumkloridia ei oltu lisätty heraan ennen suodatusta. Desal-5 DK kalvojen läpäisevyyseroja tutkittiin suodattamalla glukoosia ja natriumkloridia sisältävää malliaineliuosta kummankin vertailtavan kalvon läpi. Kokeissa havaittiin, että toista nanosuodatuskalvoa käytettäessä mitatut vesivuot olivat jopa 100 % korkeampia kuin vertailukalvoa käytettäessä mitatut. Myös glukoosin kalvolle pidättymisessä havaittiin eroja kalvojen välillä. Syyksi suuriin läpäisevyyseroihin arveltiin riittämätöntä kalvojen esikäsittelyä ennen malliainekokeen suorittamista, joten ei pystytty arvioimaan, oliko kalvojen läpäisevyyksissävalmistusprosessista johtuvia eroja.

Effects of biofilm and refrigeration on acerola postharvest conservation

The objective of this work was to compare the effects of four different concentrations of cassava starch film and storage temperature on shelf life and the quality of a genotype of acerola from the Germplasm Active Bank (GAB) of Federal Rural University of Pernambuco, Brazil. Sound orange-reddish acerola fruits were washed with a chlorine solution (100 mg.L-1 active chlorine) and randomly distributed into different lots. The fruits were dipped for 3 min in a cassava starch suspension with concentrations of 1, 2, 3 and 4% (w/v) and the control without coating, stored at 10ºC (85% RH) and 22ºC (85% RH). The total soluble solids (TSS), pH, titratable acidity (TA) and ascorbic acid (AA) were determined at harvest and regular interval during storage. The use of cassava biofilm at 1% on acerola fruits maintained the highest ascorbic acid content and the temperature of 10ºC extended storage life. The fruits coated with 1 and 2% biofilm could be stored for a period up to 15 days at 10ºC, with acceptable quality characteristics.

Residues of carbosulfan and its carbofuran metabolites and 3-hydroxy-carbofuran in oranges

The objectives of this study were to evaluate the residues of the insecticide carbosulfan and its carbofuran metabolites and 3-hydroxy-carbofuran in orange compartments (whole fruit, bagasse and juice) and comparison between the residual levels found in fruits with the maximum residue level and the safety interval established by the Brazilian legislation. Two field experiments were carried out, both with the following treatments: a-check; b-one application of 10 g of carbosulfan . 100 L-1 of water; c-one application with twice the rate applied in treatment b; d-four applications with the same rate applied in treatment b. Samples were taken at (-1), zero, 1, 3, 7, 14, 21 and 28 days after the last or unique application. The quantitative determinations were done by gas chromatography technique, using a nitrogen-phosphorus detector. The carbosulfan metabolism to its carbofuran metabolite was rapid (3 days), being both analytes concentrated in the bagasse (peel + flavedo + albedo). However, the metabolism of carbofuran to 3-hydroxy-carbofuran was of low intensity or this metabolite was quickly dissipated. Carbosulfan residues and its metabolites did not penetrate into the fruit, thus not contaminating the juice. The use of the pesticide was adequate, with respect to fruit consumption, in relation to the Brazilian legislation.