1,568 results match your criteria: "Max-Planck-Institute for Plant Breeding Research[Affiliation]"

Illegal wildlife trade is a growing problem internationally. Poaching of animals not only leads to the extinction of populations and species but also has serious consequences for ecosystems and economies. This study introduces a molecular marker system that authorities can use to detect and substantiate wildlife trafficking.

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A total of 96 strains of Nostocales (Cyanobacteria) were established from the phyllosphere of the laurel forests in the Canary Islands (Spain) and the Azores (Portugal) using enrichment media lacking combined nitrogen. The strains were characterized by light microscopy and SSU rRNA gene comparisons. Morphologically, most strains belonged to two different morphotypes, termed "-type" and "-type".

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Karyotype changes are a formidable evolutionary force by directly impacting cross-incompatibility, gene dosage, genetic linkage, chromosome segregation, and meiotic recombination landscape. These changes often arise spontaneously and are commonly detected within plant lineages, even between closely related accessions. One element that can influence drastic karyotype changes after only one (or few) plant generations is the alteration of the centromere position, number, distribution, or even its strength.

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is an amphicarpic plant in the Brassicaceae family. Plants develop two fruit types, one above and another below ground. This rare trait is associated with octoploidy in .

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Unicellular green algae of the genus Coccomyxa are recognized for their worldwide distribution and ecological versatility. Coccomyxa elongata is a freshwater species of the Coccomyxa simplex clade, which also includes lichen symbionts. To facilitate future molecular and phylogenomic studies of this versatile clade of algae, we generated a high-quality genome assembly for Coccomyxa elongata Chodat & Jaag SAG 216-3b within the framework of the Biodiversity Genomics Center Cologne (BioC2) initiative.

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Article Synopsis
  • The Mla locus in barley includes diverse genes that help the plant resist certain fungal pathogens through specific immune responses.
  • Researchers identified a gene, Scs6, that differs from Mla genes and makes barley susceptible to the necrotrophic fungus Bipolaris sorokiniana.
  • The Scs6 protein interacts with a peptide effector from the fungus to trigger cell death in barley, indicating it plays a role in disease susceptibility, and may lead to advancements in developing crops resistant to these pathogens.
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Desmodesmus (Sphaeropleales, Chlorophyceae) is a genus of freshwater green algae widely distributed in aquatic ecosystems and known for its potential in biotechnology and bioremediation. We present the complete chloroplast genome sequences of two Desmodesmus species, D. hystrix and D.

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FERONIA adjusts CC1 phosphorylation to control microtubule array behavior in response to salt stress.

Sci Adv

November 2024

Key Laboratory of Plant Design, National Key Laboratory of Plant Molecular Genetics, Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China.

Cell wall remodeling is important for plants to adapt to environmental stress. Under salt stress, cortical microtubules undergo a depolymerization-reassembly process to promote the biosynthesis of stress-adaptive cellulose, but the regulatory mechanisms underlying this process are still largely unknown. In this study, we reveal that FERONIA (FER), a potential cell wall sensor, interacts with COMPANION OF CELLULOSE SYNTHASE1 (CC1) and its closest homolog, CC2, two proteins that are required for cortical microtubule reassembly under salt stress.

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The amino acid transporter UmamiT20 confers susceptibility.

bioRxiv

October 2024

Heinrich Heine University Düsseldorf, Faculty of Mathematics and Natural Sciences, Institute for Molecular Physiology, Düsseldorf, Germany.

• Induction of SWEET sugar transporters by bacterial pathogens via transcription activator-like (TAL) effectors is necessary for successful blight infection of rice, cassava and cotton, - likely providing sugars for bacterial propagation. • Here, we show that infection of by the necrotrophic fungus causes increased accumulation of amino acid transporter UmamiT20 mRNA in leaves. UmamiT20 protein accumulates in leaf veins surrounding the lesions after infection.

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The calcium (Ca) sensor ROD1 (RESISTANCE OF RICE TO DISEASES1) is a master regulator of immunity in rice. By screening suppressors of mutants, we show that ROD1 governs immune homeostasis by surveilling the activation of a canonical immune pathway. Mutations in (), (), (), and () all abolish enhanced disease resistance of plants.

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The plant microbiota research field has rapidly shifted from efforts aimed at gaining a descriptive understanding of microbiota composition to a focus on acquiring mechanistic insights into microbiota functions and assembly rules. This evolution was driven by our ability to establish comprehensive collections of plant-associated microbes and to reconstruct meaningful microbial synthetic communities (SynComs). We argue that this powerful deconstruction-reconstruction strategy can be used to reconstitute increasingly complex synthetic ecosystems (SynEcos) and mechanistically understand high-level biological organization.

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Description Of Aims And Systems Used: Olive (Olea europea L.) is one of the most economically important tree crops worldwide, especially for the countries in the Mediterranean basin. Given the economic and nutritional importance of the crop for olive oil and drupe production, we generated transcriptional atlases for the Greek olive cultivars "Chondrolia Chalkidikis" and "Koroneiki" which have contrasting characteristics in terms of fruit development, oil production properties, and use.

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In most studied eukaryotes, chromosomes are monocentric, with centromere activity confined to a single region. However, the rush family (Juncaceae) includes species with both monocentric (Juncus) and holocentric (Luzula) chromosomes, where centromere activity is distributed along the entire chromosome length. Here, we combine chromosome-scale genome assembly, epigenetic analysis, immuno-FISH and super-resolution microscopy to study the transition to holocentricity in Luzula sylvatica.

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Harnessing beneficial microorganisms is seen as a promising approach to enhance sustainable agriculture production. Synthetic communities (SynComs) are increasingly being used to study relevant microbial activities and interactions with the plant host. Yet, the lack of community standards limits the efficiency and progress in this important area of research.

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findGSEP: estimating genome size of polyploid species using k-mer frequencies.

Bioinformatics

November 2024

School of Automation Science and Engineering, Faculty of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, China.

Summary: Estimating genome size using k-mer frequencies, which plays a fundamental role in designing genome sequencing and analysis projects, has remained challenging for polyploid species, i.e., ploidy p > 2.

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Explosive seed dispersal.

Curr Biol

October 2024

Department of Comparative Development and Genetics, Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, 50829 Cologne, Germany. Electronic address:

Emonet and Hay describe how plants actively disperse seeds using exploding fruit.

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Article Synopsis
  • Plants use pattern recognition receptors (PRRs) like EFR and FLS2 to detect bacterial pathogens and activate their immune response via RBOHD.
  • QSK1, identified as a protein associated with the PRR-RBOHD complex, acts as a negative regulator by downregulating EFR and FLS2, leading to suppressed immunity.
  • The bacterial effector HopF2Pto manipulates QSK1 to inhibit immune responses, demonstrating the sophisticated interplay between plant defense mechanisms and pathogen strategies.
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Two recombinases, RAD51 and DMC1, catalyze meiotic break repair to ensure crossovers (COs) between homologous chromosomes (interhomolog) rather than between sisters (intersister). FIDGETIN-LIKE-1 (FIGL1) downregulates both recombinases. However, the understanding of how FIGL1 functions in meiotic repair remains limited.

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Crossover interference is a phenomenon that affects the number and positioning of crossovers in meiosis and thus affects genetic diversity and chromosome segregation. Yet, the underlying mechanism is not fully understood, partly because quantification is difficult. To overcome this challenge, we introduce the interference length L that quantifies changes in crossover patterning due to interference.

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Division plane orientation contributes to cell shape and topological organization, playing a key role in morphogenesis, but the precise physical and molecular mechanism influencing these processes remains largely obscure in plants. In particular, it is less clear how the placement of the new walls occurs in relation to the walls of neighboring cells. Here, we show that genetic perturbation of the actin cytoskeleton results in more rectangular cell shapes and higher incidences of four-way junctions, perturbing the global topology of cells in the shoot apical meristem of Arabidopsis thaliana.

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Article Synopsis
  • Plant Snakin/GASA and defensin peptides are important cysteine-rich antimicrobial peptides (AMPs) with structural stability and varied functions.
  • The study focuses on the evolutionary impact of polyploidy on the expression of these peptides in the Dilatata group of Paspalum using RNA-seq data to identify 107 defensins and 145 Snakin/GASA genes.
  • Results show that allotetraploid species have undergone gene deletions, duplications, and silencing, with their AMP genes being more similar to each other than to diploid species, suggesting a single evolutionary origin for these polyploids.
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Taming of the microbial beasts: Plant immunity tethers potentially pathogenic microbiota members.

Bioessays

January 2025

National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Hubei Key Laboratory of Plant Pathology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China.

Plants are in intimate association with taxonomically structured microbial communities called the plant microbiota. There is growing evidence that the plant microbiota contributes to the holistic performance and general health of plants, especially under unfavorable situations. Despite the attached benefits, surprisingly, the plant microbiota in nature also includes potentially pathogenic strains, signifying that the plant hosts have tight control over these microbes.

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Evasion of cell death is a hallmark of cancer, and consequently the induction of cell death is a common strategy in cancer treatment. However, the molecular mechanisms regulating different types of cell death are poorly understood. We have formerly shown that in the epidermis of hypomorphic zebrafish hai1a mutant embryos, pre-neoplastic transformations of keratinocytes caused by unrestrained activity of the type II transmembrane serine protease Matriptase-1 heal spontaneously.

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Soybean breeders can count on nodules.

Trends Plant Sci

January 2025

College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China; Department of Plant Sciences, Cluster of Plant Development Biology, Wageningen University, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands. Electronic address:

Soybean, the most important legume crop, plays a crucial role in food security and sustainable agriculture. Recently, Zhong et al. demonstrated that a moderate increase in nodule number in soybean improves field yield and protein content.

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Article Synopsis
  • The 2024 Pathway to Independence Fellows share their ideas about what’s coming next in their research field.
  • They talk about different topics like how plants grow, making tissues in labs, and how living things can survive changes in the climate.
  • These smart researchers highlight important questions and challenges that still need to be solved in the study of how living things develop.
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