Philippe Feldmann

Abiome

In rapidly diversifying groups, taxa defined on the basis of typological criteria can be difficult to support with genetic data. The diversity observed in the insect-mimicking orchid genus Ophrys perfectly illustrates this situation; among 400 described species only 9–10 lineages are detectable by genetic markers such as nrITS. The three taxa descr...

In rapidly diversifying groups, taxa defined on the basis of typological criteria can be difficult to support with genetic data. The diversity observed in the insect-mimicking orchid genus Ophrys perfectly illustrates this situation; among 400 described species only 9-10 lineages are detectable by genetic markers such as nrITS. The three taxa descr...

Saunders Tern Sternula saundersi was observed at the beginning of 2020 in Reunion. This is the fourth mention for the island about two individuals staying one week at Étang du Gol.

Aims: disseminating information to extend knowledge and conservation of orchids  Website for easy sharing of orchid records : developed by Biolovision S.A  Build on SFO experience  Our beliefs: Citizen science: participation, sharing, transparency, respect Ethics and understanding: engage all stakeholders in the aims of the project, addressing...

A different way to support scientific integrity

Conservation status of Spiranthes aestivalis. Bulletin de la Société Française d'Orchidophilie du Languedoc. Janvier 2014, 11: 27-29.

Le site participatif de collecte et de partage de données naturalistes sur les orchidées de France métropolitaine est en phase de test

Background: Mediterranean Basin faces huge challenges resulting from global and societal changes. It is therefore necessary to promote regional transnational collaborative research on sustainable development in agricultural production, food security, health, energy, territories, soil and water, cultures and societies, and on management of natural r...

Background: Since its creation in 2005, the French National Research Agency (ANR) has supported numerous projects in microbial research and microbial biotechnologies applied to agronomy, nutrition, health or environmental-linked topics. The aim of this work is to provide an analytical overview of the ANR-funded projects in applied microbiology with...

The user has requested enhancement of the downloaded file. Second edition of the international congress: "Microbial Biotechnology for Development" (MICROBIOD 2), 02-04 October 2012, web site: www.uca.ma/microbiona Communications orales-Thème I / Oral communications-Topic I 74 enhanced biomass results from improved nutrient status. In particular, P....

The user has requested enhancement of the downloaded file. Second edition of the international congress: "Microbial Biotechnology for Development" (MICROBIOD 2), 02-04 October 2012, web site: www.uca.ma/microbiona Communications orales-Thème I / Oral communications-Topic I 74 enhanced biomass results from improved nutrient status. In particular, P....

The French Orchid Society (SFO) has been in charge of a large scale and intensive survey of orchid populations throughout the France territory involving more than 3000 members, botanists and partners. Overall, more involving more than 3000 members, botanists and partners. Overall, more than 110.000 stations were referenced and the national ranges o...

An updated catalogue of Lesser Antilles Orchids and of their distribution. Since the publication of a checklist of Lesser Antilles’ orchids not far of 20 years ago, the orchid family has been the subject of many studies and publications, including extensive taxonomic revisions, thanks to the use of molecular tools and to the improvement of data ava...

Microchilus hirtellus, a Goodyerinae taxon, new for the flora of the Guadeloupe, is discovered in the forest on the Basse-Terre island. It is also recorded from Dominica, Montserrat and St. Vincent islands of the Lesser Antilles. Guadeloupe’s Goodyerinae are revisited according to the recent taxonomic revisions

The French Atlas of Orchids published in autumn 2010 is a large-scale and intensive survey of orchid populations throughout the France territory. The project was directed by the French Orchid Society and involved 3000 specialists in orchids. Overall, more than 110,000 stations were referenced and 160 taxa were reported with their range on 154 maps....

Guadeloupe Woodpeckers (Melanerpes herminieri) are the only endemic bird species on the Caribbean island of Guadeloupe. These woodpeckers were classified as Near Threatened on the IUCN Red List following a population survey in 1994. To reassess the Guadeloupe Woodpecker population, we conducted a new survey in 2007, with 21 transects distributed ac...

Taro (Colocasia esculenta) breeding, as other root crop breeding, is based on the production and evaluation of large numbers of hybrids. The selection of parents is based on their phenotypic value in the absence of information concerning general combining ability (GCA), specific combining ability (SCA), or genetic distances between varieties. By co...

Résumé.- La flore des orchidées de France est diversifiée avec plus de 160 taxons répertoriés. De nombreuses menaces ont été identifiées et certaines espèces sont devenues rares. Afin de mieux connaître le statut des orchidées françaises, une évaluation des risques d’extinction a été faite sous la coordination de la Commission scientifique de la SF...

At least five marine turtles and 49 terrestrial or freshwater amphibians and reptiles have been listed from the French West Indies since the beginning of human settlement. Among terrestrial or freshwater species, two groups may be distinguished. The first group comprises 35 native species, of which seven are currently extinct or vanished. These spe...

Des records de précocité de floraison pour le département de l’Hérault dans le sud de la France ont été relevés en janvier 2007 pour l’espèce d’orchidée Ophrys lupercalis. Le rôle du réchauffement global et les conséquences éventuelles sur les populations de ces orchidées sont discutées.

The increase of production of an important root crop such as taro [Colocasia esculenta (L.) Schott, Araceae] implies the development of new varieties through an efficient breeding scheme. The breeding of new taro cultivars is a complex process which requires experience, adequate genetic resources, and reliable data about inheritance of crucial agro...

The paper presents the first taro (Colocasia esculenta L. Schott) genetic maps. Taro is an important vegetatively propagated root crop species in most subtropical areas. It is an allogamous and protogynous species with a basic chromosome number of x = 14. Two F1 progenies of 123 and 100 individuals obtained from crosses between local cultivars from...

Biodiversity in Outermost Regions (ORs) and Overseas Countries and Territories (OCTs) is exceptional but most exposed to climate change, natural hazards and pressures of human activities. Biodiversity is a fundamental asset for economy in all ORs and OCTs. Nevertheless, this reality remains poorly known and understood, despite the visible importanc...

Nineteen Guadeloupean orchid species are legally protected in 2006. This paper gives information about the 19 orchid species legally protected among the 102 recorded in Guadeloupe since the publication of a ministry decree in 2006 which modified a first one dating from 1988. The statuses, the threats, including the use of IUCN criteria, are briefly...

Les îles de la Petite Terre (148,6 ha, Guadeloupe), situées entre la pointe des Châteaux de la Grande-Terre et l'île de La Désirade, bénéficient du statut de réserve naturelle depuis 1998. Elles constituent un écosystème original dont la biomasse de vertébrés est dominée par l'Iguane des Petites Antilles (Iguana delicatissima). Endémique du nord de...

The ecosystem of the two Petite Terre Islands (a natural reserve of 148,6 ha since 1998, Guadeloupe, French West Indies) is original because it is dominated by a large size vegetarian reptile, the Lesser Antillean Iguana (Iguana delicatissima), a IUCN vulnerable species. A survey of the Lesser Antillean Iguana population was carried on by the AEVA...

Pseudocentrum guadalupense n’était connue que par le spécimen qui avait servi à le décrire, il y a près d’un siècle. Un exemplaire de cette espèce a été retrouvé en 1987, dans une station de Guadeloupe topographiquement et écologiquement semblable à la localité où elle fut découverte en 1895.

Relatively little new bird distribution data from the French-speaking Lesser Antillean islands of Martinique and Guadeloupe have been published in the English language litterature for twenty years. The status of 62 species is reviewed here with emphasis on those species whose status differs from that portrayed in the 1998 American Ornithologists' U...

The French Overseas’ Departments have many orchids, generally recorded, but sometimes of undetermined status and usually not well protected. A complete study of the wild species of Guadeloupe gave information at the taxonomic and the mapping levels and on the threats on them. After 15 years of studies and protection, the known number of wild specie...

L'entretien récent de sentiers dans le Parc National de la Guadeloupe a provoqué la destruction de plusieurs stations d'orchidées dont certaines en danger. La sauvegarde des populations restantes nécessitera la prise de mesures efficcaces de protection incluant la formation des équipes en charge de l'entretien et de la protection de cette zone avec...

ABSTRACT A streptomycin- and rifampicin-resistant mutant of Xanthomonas al-bilineans was used to study symptom expression of leaf scald disease (LSD) and colonization of sugarcane (Saccharum spp.) and its wild relatives by this bacterial pathogen. A total of 40 sugarcane cultivars and 15 clones from the Saccharum complex that differed in resistance...

In December 1995, leaf scald symptoms were observed in sugarcane (Saccharum sp.) cultivar B64277 in French Guyana. Symptomatic plants occurred both in a sugarcane germplasm collection near the road between Sinnamary and Saint-Elie and in a nursery near Sinnamary. Sugarcane imported from Martinique had been used to establish the germplasm collection...

The Collared Dove population centered on the town of Saint-Claude in Guadeloupe originated from a few birds released in 1976, is showing an important demographic and geographic extension. This species is found over the whole Guadeloupe and nearby islands. Considering the age and the size of this population, we think birds found on Martinique, Domin...

Sugarcane cultivars are polyploid, aneuploid, interspecific hybrids between the domesticated species Saccharum officinarum and the wild relative S. spontaneum. Cultivar chromosome numbers range from 100 to 130 with approximately 10% contributed by S. spontaneum. We have undertaken a mapping study on the progeny of a selfed cultivar, R570, to analyz...

Cultivated sugarcane clones (Saccharum spp., 2n=100 to 130) are derived from complex interspecific hybridizations between the species S. officinarum and S. spontaneum. Using comparative genomic DNA in situ hybridization, we demonstrated that it is possible to distinguish the chromosomes contributed by these two species in an interspecific F1 hybrid...

A study of the histocytological characteristics of anthers and pollen development of fertile male genotypes of Saccharum spontaneum L. support the division of microsporogenesis into nine distinct stages: premeiosis, meiosis and tetrad, young uninucleate microsporal stage, median uninucleate microsporal stage, median vacuolized uninucleate microspor...

A new species of Octomeria from Guadeloupe, French West Indies, is hereby described. , + Octomeria ffrenchiai is a small epiphytic pleurothallid found in the mountainous regions of Basse Terre '-Island. This is a vulnerable endemic species threatened by extinction.

Seven 5—month-old sugarcane cultivars difTering in resistance to leaf scald disease were inoculated by the decapitation technique with Xanthomonas albilineans. The effects of disease progress and incidence on yields were studied for the plant (first harvest) and two ratoon crops (second and third harvest). The percentage of diseased stalks and dise...

Molecular markers were used to characterise sugarcane intergeneric hybrids between S. officinarum and E. arundinaceus. Very simple diagnostic tools for hybrid identification among the progeny were derived from isozyme electrophoresis and a sequence-tagged PCR. Two enzyme systems (GOT and MDH B) and PCR amplification revealing spacer-size variation...

Sugarcane is the name given to sacchariferous, cultivated species and descendants of interspecific hybrids in the genus Saccharum, fafnily Graminae, tribe Andropogonae. Saccharum species are highly polyploid with no known diploid form. A basic chromosome number has not yet been firmly established, but is estimated in the range of 5–10 (Stevenson 19...

Modern sugarcane varieties are complex aneuploids and typically have chromosome numbers in the 100–125 range with about 5–10% of them contributed by wild relatives, mainly Saccharum spontaneum, and the rest by S. officinarum. This particular genomic constitution was found favorable for mapping the S. spontaneum genome, using maize as a diploid refe...

Population Dynamics of Xanthomonas albilineans in Sugarcane Plants as Determined with an Antibiotic-Resistant Mutant. P. ROTT, Plant Pathologist, Centre de Cooperation Internationale en Recherche Agronomique pour le Developpement (CIRAD-CA), Station de Roujol, 97170, Petit Bourg, Guadeloupe, FWI. M. ABEL and D. SOUPA, Former Graduate Students, and...

DNA restriction fragment length polymorphism (RFLP) analysis was performed on 50 wild and old cultivated sugarcane accessions. Ninety-four maize low copy nuclear DNA sequences of known chromosomal position were screened for hybridization to digested sugarcane genomic DNA blots. Seventy-five (80%) gave very strong hybridization signals and usually y...

Isozyme variation was used to identify biochemical markers of potential utility in sugarcane genetics and breeding. Electrophoretic polymorphism was surveyed for nine enzymes among 39 wild and noble sugarcane clones, belonging to the species most closely related to modern varieties. Up to 114 distinct bands showing presence versus absence type of v...