Mededelingen (Rijksuniversiteit te Gent. Fakulteit van de Landbouwkundige en Toegepaste Biologische Wetenschappen)最新文献_第3页

Fate and sublethal effects of isoproturon on mature earthworm (Lumbricus terrestris L.). 异丙隆对成熟蚯蚓的命运及亚致死效应。

Mededelingen (Rijksuniversiteit te Gent. Fakulteit van de Landbouwkundige en Toegepaste Biologische Wetenschappen) Pub Date : 2002-01-01

Y Y Mosleh, S Paris-Palacios, M Couderchet, G Vernet

{"title":"Fate and sublethal effects of isoproturon on mature earthworm (Lumbricus terrestris L.).","authors":"Y Y Mosleh, S Paris-Palacios, M Couderchet, G Vernet","doi":"","DOIUrl":"","url":null,"abstract":"This study was conducted to investigate the effects of isoproturon in mature earthworm (Lumbricus terrestris L.) under laboratory condition. Earthworms were exposed to soils contaminated with different concentrations for various duration. Residues were monitored in soil and earthworms after 7, 15, 30, 45, and 60 days of exposure to different isoproturon concentrations. Acute toxicity of isoproturon was determined together with growth rate and total soluble protein content of worms. These parameters were related to isoproturon concentration in soil and earthworms. No lethal effect of isoproturon was observed even at the highest concentration tested (1.4 g/kg soil) after 60 days after treatment. Residues of isoproturon have caused a significant reduction of the growth rate. Additionally a reduction of total soluble protein was observed in all treated worms. Decrease of isoproturon concentration in soil was slow and depended on herbicide initial concentration. In the worms, it increased during the first 15 days and decreased thereafter. This study is suggesting the use of the growth rate of earthworms as biomarker of exposure to isoproturon.","PeriodicalId":85134,"journal":{"name":"Mededelingen (Rijksuniversiteit te Gent. Fakulteit van de Landbouwkundige en Toegepaste Biologische Wetenschappen)","volume":"67 2","pages":"69-77"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"22346524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Monitoring the persistence of genes deriving from genetically modified plants in the soil environment. 监测转基因植物基因在土壤环境中的持久性。

Mededelingen (Rijksuniversiteit te Gent. Fakulteit van de Landbouwkundige en Toegepaste Biologische Wetenschappen) Pub Date : 2002-01-01

I Degand, J Laporte, L Pussemier

引用次数: 0

Proceedings of the 54th International Symposium on Crop Protection. Gent, Belgium, May 7, 2002. Part 1. 第54届作物保护国际研讨会论文集。比利时根特，2002年5月7日。第1部分。

Mededelingen (Rijksuniversiteit te Gent. Fakulteit van de Landbouwkundige en Toegepaste Biologische Wetenschappen) Pub Date : 2002-01-01

引用次数: 0

Computational fluid dynamics in wastewater treatment. 污水处理中的计算流体动力学。

Mededelingen (Rijksuniversiteit te Gent. Fakulteit van de Landbouwkundige en Toegepaste Biologische Wetenschappen) Pub Date : 2002-01-01

Bob De Clercq, Peter A Vanrolleghem

引用次数: 0

Angiotensin-I Converting Enzyme (ACE) inhibitory peptides derived from pea and whey protein. 从豌豆和乳清蛋白中提取的血管紧张素-I 转换酶（ACE）抑制肽。

Mededelingen (Rijksuniversiteit te Gent. Fakulteit van de Landbouwkundige en Toegepaste Biologische Wetenschappen) Pub Date : 2002-01-01

Vanessa Vermeirssen, John Van Camp, Patrick Augustijns, Willy Verstraete

引用次数: 0

Tylenchida associated with field crops in Tehran and central provinces of Iran. 在德黑兰和伊朗中部省份，Tylenchida与田间作物有关。

Mededelingen (Rijksuniversiteit te Gent. Fakulteit van de Landbouwkundige en Toegepaste Biologische Wetenschappen) Pub Date : 2002-01-01

A Kheiri, S Barooti, H Karimipour

{"title":"Tylenchida associated with field crops in Tehran and central provinces of Iran.","authors":"A Kheiri, S Barooti, H Karimipour","doi":"","DOIUrl":"","url":null,"abstract":"On a survey of plant parasitic nematodes, belonging to the order Tylenchida, about 500 soil and root samples were collected from different field crops, such as wheat, barley, tomato, potato, corn, beets, eggplants, cuccumber, melon and also other crops cultivated in Tehran and Central Provinces during 1995-2000. All samples were washed and the nematodes were extracted by Centrifugal Flotation Technique. They were fixed and transferred to glycerin, then permanent slides were mounted. Morphological and morphometrical characters of each species were studied. In this study 31 species belonging to 17 genesa of the order Tylenchida were identified as follows. Amplimerlinius macrurus, Anguina tritici, Aphelenchoides centralis, A. limberi, A. parietinus, Aphelenchus avenae, Boleodorus thylactus, Ditylenchus dipsaci, D. destructor, D. kheirii, D. medicaginis, D. myceliophagus, Filenchus cerealis, Irantylenchus clavidorus, Helicotylenchus cavenessi, H. dehystera, H. digonicus, H. pseudodigonicus, H. pseudorobustus, Heterodera avenae, Meloidogyne incognita, M. javanica, Paratylenchus projectus, P. tateae, Pratylenchus neglectus, P. thornei, Psilenchus hilarulus, P. iranicus, Quinisulcius capitatus, Seinura oostenbrink and Zygotylenchus quevarai. The validity of Filenchus cnealis, status of Irantylenchus clavidorus and also distribution of the most economically important species were discussed.","PeriodicalId":85134,"journal":{"name":"Mededelingen (Rijksuniversiteit te Gent. Fakulteit van de Landbouwkundige en Toegepaste Biologische Wetenschappen)","volume":"67 3","pages":"707-13"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"22342418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spore adhesion of entomopathogenic fungi to larvae of Frankliniella occidentalis (Pergande, 1895)-(Thysanoptera: Thripidae). 昆虫病原真菌对西富兰克林蝇幼虫的孢子粘附(Pergande, 1895)-(飞蛾目:飞蛾科)。

Mededelingen (Rijksuniversiteit te Gent. Fakulteit van de Landbouwkundige en Toegepaste Biologische Wetenschappen) Pub Date : 2002-01-01

Ulrike Meyer, Helga Sermann, Carmen Buettner

引用次数: 0

Aphid prey suitability as environmental effect on Adalia bipunctata reproduction. 蚜虫捕食适宜性对双斑田鼠繁殖的环境影响。

Mededelingen (Rijksuniversiteit te Gent. Fakulteit van de Landbouwkundige en Toegepaste Biologische Wetenschappen) Pub Date : 2002-01-01

Nicolas Vanhaelen, Charles Gaspar, Frédéric Francis

{"title":"Aphid prey suitability as environmental effect on Adalia bipunctata reproduction.","authors":"Nicolas Vanhaelen, Charles Gaspar, Frédéric Francis","doi":"","DOIUrl":"","url":null,"abstract":"Secondary plant metabolites (allelochemicals) play a major role in plant-insect interactions. Glucosinolates (GLS) and their degradation products from Brassica species are attractants and feeding stimulants for Brassicaceae specialist insects but are generally repellent and toxic for generalist herbivores. The impact of these compounds on crucifer specialist insects are well known but their effect on generalist predators is still not well documented. Prey host plant influence on reproduction of an aphidophagous beneficial, the two spot ladybird, was determined using the cabbage aphid, Brevicoryne brassicae reared on a crucifer plant, namely Brassica napus containing low GLS levels. As ladybird developmental and reproductive parameters were already shown to be strongly affected by the allelochemical presence in its preys, the unsuitable aphid and host plant combination was only momentary used to feed the A. bipunctata adults. A strong impact of the diet was observed on the beetle fecundity and the emerging offspring. Changing B. brassicae aphid to a suitable prey slowly improved the temporary negative effect of the former diet. These results enhance the food environmental effect and the importance of tritrophic relations in pest management strategies by predators. Indeed, more than the choice of the beneficial species, the prey host plant has a major influence on the potential efficacy of biological agent to control herbivore species such as aphids.","PeriodicalId":85134,"journal":{"name":"Mededelingen (Rijksuniversiteit te Gent. Fakulteit van de Landbouwkundige en Toegepaste Biologische Wetenschappen)","volume":"67 3","pages":"563-8"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"22342080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

First evidence of the breakdown in Belgium of the scab resistance conferred by the Vf gene. 第一个在比利时由Vf基因引起的抗痂性崩溃的证据。

Mededelingen (Rijksuniversiteit te Gent. Fakulteit van de Landbouwkundige en Toegepaste Biologische Wetenschappen) Pub Date : 2002-01-01

M Lateur, B Lefrancq, L Parisi

{"title":"First evidence of the breakdown in Belgium of the scab resistance conferred by the Vf gene.","authors":"M Lateur, B Lefrancq, L Parisi","doi":"","DOIUrl":"","url":null,"abstract":"Scab is the most important fungal disease of apple throughout the world. The main breeding programmes are focused on scab resistance conferred by monogenic sources of resistance, specifically the Vf gene originated from Malus floribunda 821. Since 1993, evidence of the breakdown of this resistance mechanism appeared in different countries like United Kingdom, Germany, The Netherlands and France. In 1997, a first evidence of the Vf gene breakdown in Belgium was observed on the cultivar 'Judeline' planted in an untreated orchard at Aubel where a cider making company, with our collaboration, search for cultivars adapted for juice and cider processing. Therefore, a glasshouse experiment was planned in order to characterize which scab race was present. In 1999, the artificial inoculation of some cultivars in controlled conditions showed that the scab race collected the year before at Aubel presented the same characteristics than race 7 described by other works. At the same time, an orchard was established by our Department as planned in an European FAIR project named 'Durable Apple Resistance in Europe' (D.A.R.E) with the aim to study the resistance durability of some partial scab resistant apple cultivars inside an European orchard network. Sixteen repetitions of 20 different cultivars are planted and are originating from 8 participating countries. Five apple clones with specific host resistance towards 4 specific scab races are also present. Incidence and severity assessments of the disease are made 3 times a year on the whole tree according to two international standardized scales. For the first time in 2000, a specific scab race was observed on Malus floribunda 821 which caused very serious injuries. Those results confirm that new breeding strategies must be developed for reducing the risk of scab resistance breakdown in the future.","PeriodicalId":85134,"journal":{"name":"Mededelingen (Rijksuniversiteit te Gent. Fakulteit van de Landbouwkundige en Toegepaste Biologische Wetenschappen)","volume":"67 2","pages":"135-43"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"22346433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biological effects of two insecticides on earthworms (Lumbricus terrestris L.) under laboratory conditions. 实验室条件下两种杀虫剂对蚯蚓的生物学效应。

Mededelingen (Rijksuniversiteit te Gent. Fakulteit van de Landbouwkundige en Toegepaste Biologische Wetenschappen) Pub Date : 2002-01-01

Y Y Mosleh, S Paris-Palacios, M Couderchet, G Vernet

引用次数: 0