Symplasmic transport and phloem loading in gymnosperm leaves.

abstract：:Yr36 is an important gene conferring resistance to stripe rust of wheat caused by Puccinia striiformis f. sp. tritici (Pst). To determine if the Yr36 resistance is correlated to reactive oxygen species (ROS) burst and cell death, wheat near-isogenic lines with (UC1041 + Yr36) and without (UC1041) the gene were histolo...

journal_title：Protoplasma

authors： Li H,Ren B,Kang Z,Huang L

更新日期：2016-05-01 00:00:00

abstract：:Podophyllum hexandrum Royle is known for its vast medicinal properties, particularly anticancer. It contains higher amount of podophyllotoxin (4.3 %), compared to Podophyllum peltatum (0.025 %) and other plant species; as a result, it has been used worldwide in the preparation of various drugs including anticancer, an...

journal_title：Protoplasma

authors： Kumar P,Pal T,Sharma N,Kumar V,Sood H,Chauhan RS

更新日期：2015-09-01 00:00:00

abstract：:Despite their great economic importance, relatively little is known about bamboo sexual reproduction because they usually spread through rhizomes and have long intervals between flowering periods. Bambusa tuldoides is no exception; the intervals between flowering periods are about 23 years and often do not result in s...

journal_title：Protoplasma

authors： de Souza PF,Dos Santos CMR,Ree J,Guerra MP,Pescador R

更新日期：2020-05-01 00:00:00

abstract：:Fragile sites (FSs) in plants have been described for species like Lolium and other grasses. Whereas in humans FSs were shown to be involved in genome instabilities; the consequences of FSs expression in plants are not known yet. To evaluate whether FSs cause karyotype instabilities, we assessed the frequency of micro...

journal_title：Protoplasma

authors： Rocha LC,Jankowska M,Fuchs J,Mittelmann A,Techio VH,Houben A

更新日期：2017-01-01 00:00:00

abstract：:During the past decade, there has been a paradigm shift in our understanding of the roles of intracellular lipid droplets (LDs). New genetic, biochemical and imaging technologies have underpinned these advances, which are revealing much new information about these dynamic organelles. This review takes a comparative ap...

journal_title：Protoplasma

authors： Murphy DJ

更新日期：2012-07-01 00:00:00

abstract：:Lichen secondary metabolites can function as allelochemicals and affect the development and growth of neighboring bryophytes, fungi, vascular plants, microorganisms, and even other lichens. Lichen overgrowth on bryophytes is frequently observed in nature even though mosses grow faster than lichens, but there is still ...

journal_title：Protoplasma

authors： Goga M,Antreich SJ,Bačkor M,Weckwerth W,Lang I

更新日期：2017-05-01 00:00:00

abstract：:Oogenesis in the neotenic, cave dwelling salamander Proteus anguinus anguinus has not been studied yet, and this study provides a detailed description of the early growth of the oocytes. Early previtellogene oocytes ranging from 100 to 600 µm in diameter were examined by light and transmission electron microscopy. The...

journal_title：Protoplasma

authors： Mali LB,Bulog B

更新日期：2010-10-01 00:00:00

abstract：:Understanding the mechanisms that microbes exploit to invade host cells and cause disease is crucial if we are to eliminate their threat. Although pathogens use a variety of microbial factors to trigger entry into non-phagocytic cells, their targeting of the host cell process of endocytosis has emerged as a common the...

journal_title：Protoplasma

authors： Lin AE,Guttman JA

更新日期：2010-08-01 00:00:00

abstract：:Two novel beta-expansin genes, TaEXPB1 and TaEXPB2, were isolated from wheat microspores by suppression subtractive hybridisation. Northern blot and reverse transcription PCR analyses showed that the expression of both genes was restricted to early stages of male gametophyte development (from microspores to immature p...

journal_title：Protoplasma

authors： Jin Y,Tashpulatov AS,Katholnigg H,Heberle-Bors E,Touraev A

更新日期：2006-08-01 00:00:00

abstract：:We used a noninvasive microprobe technique to record in substomatal cavities of barley leaves the apoplastic pH response to different stress situations. When K+ (or Na+) activity at the roots of intact plants was increased from 1 to 50 mM, the leaf apoplastic pH increased by 0.4 to 0.6 units within 8 to 12 min when st...

journal_title：Protoplasma

authors： Felle HH,Herrmann A,Hückelhoven R,Kogel KH

更新日期：2005-12-01 00:00:00

abstract：:Pongamia pinnata L. is a multipurpose versatile legume that is well known as a prospective feedstock biodiesel species. However, to date, there has been little genomic research aimed at the exploitation of the biotechnological potential of this species. Genetic characterization of any plant is a challenging task when ...

journal_title：Protoplasma

authors： Choudhury RR,Basak S,Ramesh AM,Rangan L

更新日期：2014-05-01 00:00:00

abstract：:1. Cells of Schizosaccharomyces pombe from the stationary growth phase show only a low capacity for the uptake of xanthine. In the presence of 2 muM xanthine, the initial uptake rate is found in the range of 6-10- minus 21 Moles times Cells- minus 1 times Min- minus 1 at 30 degrees C. 2. Preincubation in glucose solut...

journal_title：Protoplasma

authors： Seipel S,Reichert U

更新日期：1975-01-01 00:00:00

abstract：:Hepatocellular carcinoma (HCC) is the most common primary malignancy of the liver and is characterized by multistage formation. The presence of ductular reaction, cytokeratin 7 positivity (PCK7), and increased levels of gamma glutamyltransferase (γGT) has been observed during liver carcinogenesis and contribute to tum...

journal_title：Protoplasma

authors： Moreira AJ,Rodrigues GR,Bona S,Fratta LX,Weber GR,Picada JN,Dos Santos JL,Cerski CT,Marroni CA,Marroni NP

更新日期：2017-03-01 00:00:00

abstract：:Turions, which are modified shoot apices, are vegetative, dormant overwintering organs produced by perennial aquatic plants. In this study, the turion cytochemistry and ultrastructure of Aldrovanda vesiculosa, Utricularia vulgaris and U. stygia were compared with particular emphasis placed on storage substances. These...

journal_title：Protoplasma

authors： Płachno BJ,Adamec L,Kozieradzka-Kiszkurno M,Swiątek P,Kamińska I

更新日期：2014-11-01 00:00:00

abstract：:The cryptomonad nucleomorph is a vestigial nucleus of a eukaryotic red alga engulfed by a phagotrophic protist and retained as a photosynthetic endosymbiont. This review recounts the initial discovery and subsequent characterisation of the cryptomonad nucleomorph focusing on the key role of Peter Sitte and his protégé...

journal_title：Protoplasma

authors： McFadden GI

更新日期：2017-09-01 00:00:00

abstract：:Features of programmed cell death (PCD) and dynamic changes of starch accumulation in developing pericarp cells of wheat (Triticum aestivum L.) were observed and analyzed by periodic acid-Schiff/toluidine blue O double staining, fluorescence staining, terminal deoxynucleotidyl transferase-mediated fluorescein deoxyuri...

journal_title：Protoplasma

authors： Zhou Z,Wang L,Li J,Song X,Yang C

更新日期：2009-07-01 00:00:00

abstract：:In the grass snake (Natrix natrix), the newly developed somites form vesicles that are located on both sides of the neural tube. The walls of the vesicles are composed of tightly connected epithelial cells surrounding the cavity (the somitocoel). Also, in the newly formed somites, the Pax3 protein can be observed in t...

journal_title：Protoplasma

authors： Lewandowski D,Dubińska-Magiera M,Posyniak E,Rupik W,Daczewska M

更新日期：2017-07-01 00:00:00

abstract：:Using higher-resolution wide-field computational optical-sectioning fluorescence microscopy, the distribution of antigens recognized by antibodies against animal beta 1 integrin, fibronectin, and vitronectin has been visualized at the outer surface of enzymatically protoplasted onion epidermis cells and in depectinate...

journal_title：Protoplasma

authors： Gens JS,Reuzeau C,Doolittle KW,McNally JG,Pickard BG

更新日期：1996-01-01 00:00:00

abstract：:The distribution and development of secretory cells and crystal cells in young shoot apexes of water hyacinth were investigated through morphological and cytological analysis. The density of secretory cells and crystal cells were high in parenchyma tissues around the vascular bundles of shoot apexes. Three development...

journal_title：Protoplasma

authors： Xu GX,Tan C,Wei XJ,Gao XY,Zheng HQ

更新日期：2011-04-01 00:00:00

abstract：:Intracellular molecular transport and localization are crucial for cells (plant cells as much as mammalian cells) to proliferate and to adapt to diverse environmental conditions. Here, some aspects of the microscopy-based method of fluorescence recovery after photobleaching (FRAP) are introduced. In the course of the ...

journal_title：Protoplasma

authors： Wachsmuth M

更新日期：2014-03-01 00:00:00

abstract：:Dehydroleucodine is a sesquiterpene lactone recently isolated from aerial parts of a medicinal herb, Artemisia douglasiana Besser. We have previously shown that 25 and 100 microM dehydroleucodine slowed down onion root growth by 30 and 70%, respectively, affecting neither cell viability nor cell elongation. In the pre...

journal_title：Protoplasma

authors： López ME,Giordano OS,López LA

更新日期：2002-02-01 00:00:00

abstract：:The aim of this work was to study the activity of NAD(P)H:(quinone acceptor) oxidoreductase 1 (EC 1.6.99.2) in the regeneration of lipophilic antioxidants, alpha-tocopherol, and reduced-coenzyme Q analogs. First, we tested whether or not two isoforms of the NAD(P)H:(quinone acceptor) oxidoreductase 1 designated as "hy...

journal_title：Protoplasma

authors： Bello RI,Kagan VE,Tyurin V,Navarro F,Alcaín FJ,Villalba JM

更新日期：2003-05-01 00:00:00

abstract：:Root hairs are tubular cells resulting from a tip-localized growth in which calcium ions play a key role. Hypaphorine, an indole alkaloid secreted by the fungus Pisolithus microcarpus during the formation of ectomycorrhizae with the host plant Eucalyptus globulus, inhibits root hair tip growth. Hypaphorine-induced inh...

journal_title：Protoplasma

authors： Dauphin A,Gérard J,Lapeyrie F,Legué V

更新日期：2007-01-01 00:00:00

abstract：:In the present study energy-filtering transmission electron microscopy by use of an in-column spectrometer is employed as a powerful tool for ultrastructural analysis of plant cells. Images of unstained very thin (50 nm) and thick (140 nm) sections of the unicellular green alga Micrasterias denticulata, as a model sys...

journal_title：Protoplasma

authors： Lütz-Meindl U,Aichinger N

更新日期：2004-06-01 00:00:00

abstract：:Present communication reports laboratory and pot experiments conducted to study the influence of water and osmotic stress on nitrogen uptake and metabolism in two wheat (Triticum aestivum L) cultivars with and without potassium supplementation. Polyethylene glycol 6000-induced osmotic stress/restricted irrigation caus...

journal_title：Protoplasma

authors： Ahanger MA,Tittal M,Mir RA,Agarwal RM

更新日期：2017-09-01 00:00:00

abstract：:Vacuoles are ubiquitous organelles in the fungal and plant kingdoms. They serve a variety of functions and are important for cell homeostasis. A constant turnover of proteins and membranes makes vacuoles dynamic organelles. Various transport pathways share the vacuole as their joint destination. The trafficking pathwa...

journal_title：Protoplasma

authors： Götte M,Lazar T

更新日期：1999-01-01 00:00:00

abstract：:Here we present an overview of what is known about endogenous plant compounds that act as inhibitors of hormonal transport processes in plants, about their identity and mechanism of action. We have also summarized commonly and less commonly used compounds of non-plant origin and synthetic drugs that show at least part...

journal_title：Protoplasma

authors： Klíma P,Laňková M,Zažímalová E

更新日期：2016-11-01 00:00:00

abstract：:The present study focuses on the responses of floating laminae of the Mn-tolerant hydrophyte Trapa natans L. to 1 mM Mn and their ability to accumulate the metal. Studies were carried out first on young floating laminae belonging to the second verticil of 30-day-old plants which originated from fruits that had been ma...

journal_title：Protoplasma

authors： Baldisserotto C,Ferroni L,Anfuso E,Pagnoni A,Fasulo MP,Pancaldi S

更新日期：2007-01-01 00:00:00

abstract：:According to our data, the arrest of univalents in bouquet arrangement is a widespread meiotic feature in cereal haploids and allohaploids (wide hybrids F(1)). We have analyzed 83 different genotypes of cereal haploids and allohaploids with visualization of the cytoskeleton and found a bouquet arrest in 45 of them (in...

journal_title：Protoplasma

authors： Shamina NV

更新日期：2012-01-01 00:00:00

abstract：:Developing flowers are important sinks in Arabidopsis thaliana. Their energy demand is covered by assimilates which are synthesized in source leaves and transported via the vasculature. Assimilates are unloaded either symplastically through plasmodesmata or apoplastically by specific transport proteins. Here we studie...

journal_title：Protoplasma

authors： Werner D,Gerlitz N,Stadler R

更新日期：2011-01-01 00:00:00