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Diversity study on Sclerotinia trifoliorum Erikks., the causal agent of clover rot in red clover crops (Trifolium pratense L.) Instituut voor Landbouw-, Visserij- en Voedingsonderzoek

Tim Vleugels, Joost Baert, Jan De Riek, Kurt Heungens, Marianne Malengier, Gerda Cnops, Erik Van Bockstaele

Since the 16th century, red clover has been an important crop in Europe. Since the 1940s, the European areal of red clover has been severely reduced, due to the availability of chemical fertilizers and the growing interest in maize. Nowadays there is a growing interest in red clover again, although some setbacks still remain. An important setback is the low persistence of red clover crops. Clover rot, caused by the ascomycete fungus ...

Exopolysaccharide Carbohydrate Structure and Biofilm Formation by Rhizobium leguminosarum bv. trifolii Strains Inhabiting Nodules of Trifolium repens Growing on an Old Zn–Pb–Cd-Polluted Waste Heap Area Universiteit Hasselt

Sofie THIJS, Jaco VANGRONSVELD
Heavy metals polluting the 100-year-old waste heap in Boleslaw (Poland) are acting as a natural selection factor and may contribute to adaptations of organisms living in this area, including Trifolium repens and its root nodule microsymbionts-rhizobia. Exopolysaccharides (EPS), exuded extracellularly and associated with bacterial cell walls, possess variable structures depending on environmental conditions; they can bind metals and are involved ...

Trifolium repens-Associated Bacteria as a Potential Tool to Facilitate Phytostabilization of Zinc and Lead Polluted Waste Heaps Universiteit Hasselt

Valeria IMPERATO, Jaco VANGRONSVELD, Sofie THIJS
Heavy metals in soil, as selective agents, can change the structure of plant-associated bacterial communities and their metabolic properties, leading to the selection of the most-adapted strains, which might be useful in phytoremediation.Trifolium repens, a heavy metal excluder, naturally occurs on metal mine waste heaps in southern Poland characterized by high total metal concentrations. The purpose of the present study was to assess the ...

Naar merkergeassisteerde selectie voor anthracnose resistentie, klaverrot resistentie en vorsttolerantie in rode klaver (Trifolium pratense L.) Instituut voor Landbouw-, Visserij- en Voedingsonderzoek

Michelle M Nay, Tim Vleugels, Åshild Ergon, Christoph Grieder, Wilbert Luesink, Roland Kolliker
Marker assisted selection (MAS) allows to efficiently select genotypes with resistance and/or tolerance to various abiotic and biotic stresses. Several QTL mapping and genome-wide association studies (GWAS) in red clover have revealed associations of genetic regions with stress resistance or other agronomic traits. However, only few publications present molecular markers that can be readily implemented in red clover breeding programmes. ...

Screening for resistance to clover rot (Sclerotinia spp.) among a diverse collection of red clover populations (Trifolium pratense L.) Universiteit Gent Instituut voor Landbouw-, Visserij- en Voedingsonderzoek

Tim Vleugels, Gerda Cnops, Erik Van Bockstaele
Red clover (Trifolium pratense) is an important perennial forage crop that is widely cultivated in Europe. Clover rot remains a major disease in red clover, but resistance breeding is hampered by the lack of available sources of resistance. Moreover, little is known about the factors that influence clover rot resistance. In this paper we evaluated the variation in clover rot susceptibility among a diverse collection of 113 red clover accessions, ...

GWAS voor droogtetolerantie kenmerken in rode klaver (Trifolium pratense L.) Instituut voor Landbouw-, Visserij- en Voedingsonderzoek Universiteit Gent

Tim Vleugels, Tom Ruttink, Daniel Ariza-Suarez, Reena Dubey, Aamir Saleem, Isabel Roldán-Ruiz, Hilde Muylle
Red clover (Trifolium pratense L.) is a well-appreciated grassland crop in temperate climates but suffers from increasingly frequent and severe drought periods. Molecular markers for drought resilience (DR) would benefit breeding initiatives for red clover, as would a better understanding of the genes involved in DR. Two previous studies, as follows, have: (1) identified phenotypic DR traits in a diverse set of red clover accessions; and (2) ...

Microbial activity in herbivore dung affects nodulation and growth of Trifolium pratense Vrije Universiteit Brussel

Xingzhao Sun, Amine M’Barek Bouanane, Leonardo Henrique Teixeira Pinto, Judith Sitters, Harry Olde Venterink

Background and aims: Herbivore dung varies among species in terms of nutrients and microbial composition, but the effect of the microbial activity in the dung on plant growth and symbiotic association is largely unknown. This study aimed to investigate the influence of cow dung quantity and dung microbial activity on plant-microbe interactions (mycorrhiza, nodulation) and the growth of Trifolium pratense seedlings. Methods: A mesocosm ...

Fenotypische karakterisering van droogtereacties in rode klaver (Trifolium pratense L.) Instituut voor Landbouw-, Visserij- en Voedingsonderzoek

Tim Vleugels, Aamir Saleem, Reena Dubey, Hilde Muylle, Irene Borra Serrano, Peter Lootens, Tom De Swaef, Isabel Roldán-Ruiz
Introduction: Red clover (Trifolium pratense) is a protein-rich, short-lived perennial
forage crop that can achieve high yields, but suffers increasingly from drought in
different cultivation areas. Breeding for increased adaptation to drought is becoming
essential, but at this stage it is unclear which traits breeders should target to
phenotype responses to drought that allow them to identify the most promising
red ...