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A Bird’s View on Cell Biology

Peter Nick 0 ) Molecular Cell Biology, University of Karlsruhe, Institute of Botany , Kaiserstr. 2, 76131 Karlsruhe, Germany - Founded in 1926, Protoplasma is the cell biology journal with the

A green version of Haeckel’s rule

Peter Nick 0 ) Molekulare Zellbiologie, Botanisches Institut, Karlsruhe Institute of Technology , Kaiserstrae 2, 76131 Karlsruhe, Germany - During individual development, many organisms

A kinesin with calponin-homology domain is involved in premitotic nuclear migration

Interaction and cross-talk between microtubules and actin microfilaments are important for numerous processes during plant growth and development, including the control of cell elongation and tissue expansion, but little is known about the molecular components of this interaction. Plant kinesins with the calponin-homology domain (KCH) were recently identified and associated with...

A stilbene synthase allele from a Chinese wild grapevine confers resistance to powdery mildew by recruiting salicylic acid signalling for efficient defence

Stilbenes are central phytoalexins in Vitis, and induction of the key enzyme stilbene synthase (STS) is pivotal for disease resistance. Here, we address the potential for breeding resistance using an STS allele isolated from Chinese wild grapevine Vitis pseudoreticulata (VpSTS) by comparison with its homologue from Vitis vinifera cv. ‘Carigane’ (VvSTS). Although the coding...

Actin as Deathly Switch? How Auxin Can Suppress Cell-Death Related Defence

Plant innate immunity is composed of two layers – a basal immunity, and a specific effector-triggered immunity, which is often accompanied by hypersensitive cell death. Initiation of cell death depends on a complex network of signalling pathways. The phytohormone auxin as central regulator of plant growth and development represents an important component for the modulation of...

An ancestral allele of grapevine transcription factor MYB14 promotes plant defence

Peter Nick 2 Qiao Zhao, Tsinghua University 0 Institute of Molecular Genetics, Johannes Gutenberg-University Mainz , J.-J.-Becherweg 32, D-55128 Mainz , Germany 1 College of Life Sciences, Northwest

Cellular footprints of plant evolution—news from the blepharoblast

Peter Nick 0 ) Botanical Institute 1 , Kaiserstr. 2, 76128 Karlsruhe, Germany - The microtubular cytoskeleton of higher plants diverges considerably from its animal counterpart. This divergence

Chicken or egg—Weismann revisited

Peter Nick - Multicellularity allows for division of labour. This requires that individual cells adopt different developmental fates. This developmental dichotomy could arise from interactions

Combination of Plant Metabolic Modules Yields Synthetic Synergies

The great potential of pharmacologically active secondary plant metabolites is often limited by low yield and availability of the producing plant. Chemical synthesis of these complex compounds is often too expensive. Plant cell fermentation offers an alternative strategy to overcome these limitations. However, production in batch cell cultures remains often inefficient. One...

De Novo Characterization of a Cephalotaxus hainanensis Transcriptome and Genes Related to Paclitaxel Biosynthesis

Cephalotaxus hainanensis, an endangered plant, is known to contain several metabolites with anti-cancer activity. Despite its clinical impact, the alkaloid metabolism of this species has remained largely uncharacterized. The potential of Cephalotaxus for metabolic engineering of medically interesting compounds has, so far, not been exploited, due to the almost complete lack of...

Defence Signalling Triggered by Flg22 and Harpin Is Integrated into a Different Stilbene Output in Vitis Cells

Plants can activate defence to pathogen attack by two layers of innate immunity: basal immunity triggered by pathogen-associated molecular pattern (PAMP) triggered immunity (PTI) and effector-triggered immunity (ETI) linked with programmed cell death. Flg22 and Harpin are evolutionary distinct bacterial PAMPs. We have previously shown that Harpin triggers hypersensitive cell...

Eduard Strasburger—dead for a century, but still alive

Peter Nick Science tradition 0 ) University of Karlsruhe , Karlsruhe, Germany - The decay rate of biological knowledge is estimated to be in the range of less than a decade. In times, where