Unusual microtubular cytoskeleton of apomictic embryo sac of Chondrilla juncea L.

abstract：:In order to gain more insight into the involvement of mitochondrial complex III in the Cd-induced stress, we studied the effect of complex III inhibitors, antimycin A (AA), and myxothiazol (MYXO), on the Cd-induced ROS and NO generation in the barley root tip. Short-term exposure of barley roots to either MYXO or AA p...

journal_title：Protoplasma

authors： Zelinová V,Demecsová L,Tamás L

更新日期：2019-09-01 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：:The presence of specific protein types in claws and beaks of turtles is poorly known. The present immunological study describes the localization of some of the main corneous beta proteins (CBPs) coded in the epidermal differentiation complex of turtles. Three antibodies here utilized revealed that glycine-, cysteine-,...

journal_title：Protoplasma

authors： Alibardi L

更新日期：2020-07-01 00:00:00

abstract：:The plant root tip represents a fascinating model system for studying changes in Golgi stack architecture associated with the developmental progression of meristematic cells to gravity sensing columella cells, and finally to "young" and "old", polysaccharide-slime secreting peripheral cells. To this end we have used ...

journal_title：Protoplasma

authors： Staehelin LA,Giddings TH Jr,Kiss JZ,Sack FD

更新日期：1990-01-01 00:00:00

abstract：:Indirect immunofluorescence and confocal microscopy were used to study the nucleation and organization of microtubules during meiosis in two species of leafy liverworts, Cephalozia macrostachya and Telaranea longifolia. This is the first such study of sporogenesis in the largest group of liverworts important as living...

journal_title：Protoplasma

authors： Brown RC,Lemmon BE

更新日期：2009-10-01 00:00:00

abstract：:Syagrus coronata is an economically important palm tree grown as an ornament, for the oil extracted from its seeds, and the wax from its leaves which has several applications in industry. Silicon biocomposites were analyzed in leaves of S. coronata. Silica bodies were found as extracellular silica masses between the h...

journal_title：Protoplasma

authors： Lins U,Barros CF,da Cunha M,Miguens FC

更新日期：2002-10-01 00:00:00

abstract：:Ascorbate has been related to the differentiation of several mesenchymal cells including haematopoietic cells. We have previously demonstrated that ascorbate enhances the activity of 1 alpha,25-dihydroxyvitamin D3 (1 alpha,25(OH)2D3) on monocytic differentiation of HL-60 cells. Here, we show that ascorbate-mediated mo...

journal_title：Protoplasma

authors： López-Lluch G,Blázquez MV,Pérez-Vicente R,Macho A,Burón MI,Alcaín FJ,Muñoz E,Navas P

更新日期：2001-01-01 00:00:00

abstract：:In this study, we surveyed the bacteriome-associated microbiota of the corn leafhopper Dalbulus maidis by means of histological, ultrastructural, and molecular analyses. Amplification and sequencing of 16S rDNA genes revealed that the endosymbiont "Candidatus Sulcia muelleri" (Phylum Bacteroidetes) resides in bacterio...

journal_title：Protoplasma

authors： Brentassi ME,Franco E,Balatti P,Medina R,Bernabei F,Marino de Remes Lenicov AM

更新日期：2017-05-01 00:00:00

abstract：:In the genus Genlisea as well as in its sister genus Utricularia, the palate probably plays a key role in providing the colour, mechanical and olfactory stimuli to attract insect pollinators and to guide them to the generative structures and the nectary spur. However, information about the micro-morphology of the pala...

journal_title：Protoplasma

authors： Płachno BJ,Świątek P,Stpiczyńska M,Miranda VFO

更新日期：2018-07-01 00:00:00

abstract：:Plant growth and development are intimately attuned to fluctuations in environmental variables such as light, temperature and water availability. A broad range of signalling and dynamic response mechanisms allows them to adjust their physiology so that growth and reproductive capacity are optimised for the prevailing ...

journal_title：Protoplasma

authors： Seung D,Risopatron JP,Jones BJ,Marc J

更新日期：2012-07-01 00:00:00

abstract：:Unconventional protein secretion (UPS) is a collective term for mechanisms by which cytosolic proteins that lack a signal peptide ("leaderless secretory proteins" (LSPs)) can gain access to the cell exterior. Numerous examples of UPS have been well documented in animal and yeast cells. In contrast, our understanding o...

journal_title：Protoplasma

authors： Robinson DG,Ding Y,Jiang L

更新日期：2016-01-01 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：: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：:The biological nature, ultrastructure, distribution, and mode of transmission between generations of the microorganisms associated with three species (Orthezia urticae, Matsucoccus pini, Steingelia gorodetskia) of primitive families (archaeococcoids = Orthezioidea) of scale insects were investigated by means of micros...

journal_title：Protoplasma

authors： Michalik K,Szklarzewicz T,Kalandyk-Kołodziejczyk M,Michalik A

更新日期：2019-09-01 00:00:00

abstract：:In this paper, two transgenic wheat lines, PC27 and PC51, containing the maize PEPC gene and its wild-type (WT) were used as experimental material to study the effects of high temperature on their photosynthetic physiological characteristics and metabolome. The results showed that transgenic wheat lines had higher pho...

journal_title：Protoplasma

authors： Qi X,Xu W,Zhang J,Guo R,Zhao M,Hu L,Wang H,Dong H,Li Y

更新日期：2017-03-01 00:00:00

abstract：:Intestinal ischemia and reperfusion (I/R) causes cellular and tissue damage to the intestine and remote organs such as the liver. Increased production of ROS and nitric oxide and dysregulation of cytoprotective enzymes may be involved in intestinal I/R. The aim was to evaluate the protective effects of glutamine on th...

journal_title：Protoplasma

authors： Hartmann RM,Licks F,Schemitt EG,Colares JR,do Couto Soares M,Zabot GP,Fillmann HS,Marroni NP

更新日期：2017-11-01 00:00:00

abstract：:Podophyllum species (Podophyllum hexandrum Royle and Podophyllum peltatum) are a major source of deriving anticancer drugs from their major chemical constituent, podophyllotoxin. However, information lacks on regulatory components of podophyllotoxin biosynthesis; therefore, different classes of transcription factors w...

journal_title：Protoplasma

authors： Kumar P,Jaiswal V,Pal T,Singh J,Chauhan RS

更新日期：2017-01-01 00:00:00

abstract：:Catchweed bedstraw is famous for its ability to adhere to other objects due to the presence of numerous trichomes surrounding the stem and mericarps and on the surfaces of the leaves. These trichomes serve as an efficient vector for the movement of the propagules via animals. In this study, we examined the structure a...

journal_title：Protoplasma

authors： Bowling AJ,Maxwell HB,Vaughn KC

更新日期：2008-11-01 00:00:00

abstract：:Investigation of 67 gymnosperm and angiosperm species belonging to 25 orders shows that epistomatal mucilage plugs are a widespread phenomenon. Measurements of the leaf water status by using the leaf patch clamp pressure technique suggest that the mucilage plugs are involved in moisture uptake and buffering leaf cells...

journal_title：Protoplasma

authors： Westhoff M,Zimmermann D,Zimmermann G,Gessner P,Wegner LH,Bentrup FW,Zimmermann U

更新日期：2009-03-01 00:00:00

abstract：:Along the past recent years, two-photon excitation (TPE) microscopy has moved from the realms of technical curiosity to be a standard application in many advanced cell biology laboratories. The growing body of literature covered in this review points out the obvious advantages of TPE over any other imaging method base...

journal_title：Protoplasma

authors： Feijó JA,Moreno N

更新日期：2004-03-01 00:00:00

abstract：:Plant development is regulated by numerous chemicals derived from a multitude of metabolic pathways. However, we know very little about the biological effects and functions of many of these metabolites in the cell. N-Acylethanolamines (NAEs) are a group of lipid mediators that play important roles in mammalian physiol...

journal_title：Protoplasma

authors： Motes CM,Pechter P,Yoo CM,Wang YS,Chapman KD,Blancaflor EB

更新日期：2005-12-01 00:00:00

abstract：:We present a new Chlamydomonas reinhardtii flagellar mutant in which central pair projections are missing and the central pair microtubules are twisted along the length of the flagellum. We have named this mutant tcp1 for twisted central pair. Immunoblots using an antibody that recognizes the heavy chain of sea urchin...

journal_title：Protoplasma

authors： Vucica Y,Diener DR,Rosenbaum JL,Koutoulis A

更新日期：2007-01-01 00:00:00

abstract：:The structural changes occurred in differentiating olive cotyledon cells into mesophyll cells are described. Using histological and immunocytological methods as well as microscopic observations, we showed that in the cells of mature embryo, large electron-dense proteins bodies (PBs) are surrounded by numerous oil bodi...

journal_title：Protoplasma

authors： Zienkiewicz A,Jiménez-López JC,Zienkiewicz K,de Dios Alché J,Rodríguez-García MI

更新日期：2011-10-01 00:00:00

abstract：:The actin-nucleating and -organizing Arp2/3 protein complex is well known to be conserved throughout the eukaryotic kingdom. For higher plants, however, only limited evidence is available for the presence of the Arp2/3 complex so far. Using heterologous antibodies against the Dictyostelium discoideum and Schizosacchar...

journal_title：Protoplasma

authors： Van Gestel K,Slegers H,Von Witsch M,Samaj J,Baluska F,Verbelen JP

更新日期：2003-09-01 00:00:00

abstract：:Palaeontologically, eubacteria are > 3× older than neomura (eukaryotes, archaebacteria). Cell biology contrasts ancestral eubacterial murein peptidoglycan walls and derived neomuran N-linked glycoprotein coats/walls. Misinterpreting long stems connecting clade neomura to eubacteria on ribosomal sequence trees (plus mi...

journal_title：Protoplasma

authors： Cavalier-Smith T,Chao EE

更新日期：2020-05-01 00:00:00

abstract：:The effect of cytochalasin B (CB; 25 micrograms ml-1 in 1% dimethylsulfoxide, DMSO) upon the structural polarity of statocytes in cress roots is demonstrated. If normal, vertically grown roots are incubated in CB, the structural polarity of the statocytes is altered according to the developmental stage of the root. St...

journal_title：Protoplasma

authors： Hensel W

更新日期：1985-01-01 00:00:00

abstract：:Earwigs (Dermaptera) use different strategies to increase their reproductive success. Most species lay eggs; however, viviparity of the matrotrophic type has been reported in two groups: Hemimeridae and Arixeniidae. In Arixeniidae, offspring develop in two separate places: inside an ovary (the intraovarian phase) and ...

journal_title：Protoplasma

authors： Jaglarz MK,Tworzydlo W,Rak A,Kotula-Balak M,Sekula M,Bilinski SM

更新日期：2019-11-01 00:00:00

abstract：:The life of plants growing in cold extreme environments has been well investigated in terms of morphological, anatomical, and ecophysiological adaptations. In contrast, long-term cellular or metabolic studies have been performed by only a few groups. Moreover, a number of single reports exist, which often represent ju...

journal_title：Protoplasma

authors： Lütz C

更新日期：2010-08-01 00:00:00

abstract：:A comparative analysis of fluorochrome-binding pattern in nine taxa of Abelmoschus had shown that the type, amount and distribution pattern of heterochromatin were characteristic for each taxa. The fluorescent chromosome-binding sites obtained by chromomycin A3 (CMA) and 4',6-diamidino-2-phenylindole (DAPI) staining i...

journal_title：Protoplasma

authors： Merita K,Kattukunnel JJ,Yadav SR,Bhat KV,Rao SR

更新日期：2015-03-01 00:00:00

abstract：:The mitotic chromosome structure of 45S rDNA site gaps in Lolium perenne was studied by atomic force microscope (AFM) combining with fluorescence in situ hybridization (FISH) analysis in the present study. FISH on the mitotic chromosomes showed that 45S rDNA gaps were completely broken or local despiralizations of the...

journal_title：Protoplasma

authors： Huang J,Ma L,Sundararajan S,Fei SZ,Li L

更新日期：2009-07-01 00:00:00