Involvement of microtubules in rhizoid differentiation of Spirogyra species.

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：: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：:Flagellar development in the plurilocular zoidangia of sporophytes of the brown alga Ectocarpus siliculosus was analyzed in detail using transmission electron microscopy and electron tomography. A series of cell divisions in the plurilocular zoidangia produced the spore-mother cells. In these cells, the centrioles dif...

journal_title：Protoplasma

authors： Fu G,Nagasato C,Ito T,Müller DG,Motomura T

更新日期：2013-02-01 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：:Interactive effects of two heavy metal pollutants Cd and Pb in the growth medium were examined on their uptake, production of reactive oxygen species (ROS), induction of oxidative stress and antioxidative defence responses in Indica rice (Oryza sativa L.) seedlings. When rice seedlings in sand culture were exposed to ...

journal_title：Protoplasma

authors： Srivastava RK,Pandey P,Rajpoot R,Rani A,Dubey RS

更新日期：2014-09-01 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：: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：: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：:19F nuclear magnetic resonance (NMR) imaging and 19F NMR chemical-shift imaging (19F CSI) have been used to localize fluorinated compounds administered to stems of Ancistrocladus heyneanus and A. abbreviatus for the elucidation of biosynthetic pathways in living plants. This first application of 19F CSI on plants prov...

journal_title：Protoplasma

authors： Bringmann G,Wolf K,Meininger M,Rokitta M,Haase A

更新日期：2001-01-01 00:00:00

abstract：:It is well established that cytoplasmic microtubules are depolymerized during nuclear division and reassembled as mitotic microtubules. Mounting evidence showing that cytoplasmic microtubules were also involved in apical growth of fungal hyphae posed the question of whether apical growth became disrupted during nuclea...

journal_title：Protoplasma

authors： Riquelme M,Fischer R,Bartnicki-García S

更新日期：2003-01-01 00:00:00

abstract：:Withanolide is one of the most extensively exploited steroidal lactones, which are biosynthesized in Withania somnifera. Its production from cell suspension culture was analyzed to defeat limitations coupled with its regular supply from the plant organs. In order to optimize the different factors for sustainable produ...

journal_title：Protoplasma

authors： Sivanandhan G,Kapil Dev G,Jeyaraj M,Rajesh M,Muthuselvam M,Selvaraj N,Manickavasagam M,Ganapathi A

更新日期：2013-08-01 00:00:00

abstract：:The detergent Brij 58 has been introduced to reverse plasma membrane (PM) vesicles from the right-side-out to the inside-out form. The aim of the present work was to investigate the effect of Brij 58 on the formation of an ATP-dependent proton gradient and on the fluidity of the lipid phase of PM vesicles. PMs of corn...

journal_title：Protoplasma

authors： Behzadipour M,Kluge M,Lüthje S

更新日期：2001-01-01 00:00:00

abstract：:Vicia barbazitae, a taxon belonging to section Vicia of subgenus Vicia, was recovered and analysed by cytological, karyological and molecular methods with the aim of both proposing a general characterisation of this species and studying the relationships among the species of section Vicia . Phy...

journal_title：Protoplasma

authors： Ruffini Castiglione M,Frediani M,Gelati MT,Venora G,Giorgetti L,Caputo P,Cremonini R

更新日期：2012-07-01 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：: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：:Superoxide dismutase (SOD) activities of the oomycete Phytophthora cinnamomi were examined. Five polypeptides with manganese superoxide dismutase (MnSOD) activity were found in mycelium growing in liquid culture with relative molecular weights ranging from approximately 25 to 100 kDa. Comparison with characterized avo...

journal_title：Protoplasma

authors： Guzmán-Deara J,Reyes-De la Cruz H,Beltrán-Peña EM,Castro-Mercado E,García-Pineda E

更新日期：2013-06-01 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：:Single-molecule Förster resonance energy transfer (smFRET) has emerged as a powerful tool for elucidating biological structure and mechanisms on the molecular level. Here, we focus on applications of smFRET to study interactions between DNA and enzymes such as DNA and RNA polymerases. SmFRET, used as a nanoscopic rule...

journal_title：Protoplasma

authors： Farooq S,Fijen C,Hohlbein J

更新日期：2014-03-01 00:00:00

abstract：:Programmed cell death occurs in plants during several developmental processes and during the expression of resistance to pathogen attack (i.e., the hypersensitive response). An unsolved question of plant programmed cell death is whether a unique signaling pathway or different, possibly convergent pathways exist. This ...

journal_title：Protoplasma

authors： Malerba M,Cerana R,Crosti P

更新日期：2004-10-01 00:00:00

abstract：:The purpose of the main research was to investigate the effects of methyl jasmonate (MeJA) (0.05, 0.25, 0.5, and 2.5 mM) on the pollen germination and tube elongation of Pinus nigra. Total pollen germination rate increased after MeJA treatments while the most enhancement was observed at 0.05-mM MeJA. No germination wa...

journal_title：Protoplasma

authors： Çetinbaş-Genç A,Vardar F

更新日期：2020-11-01 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：:Temperatures above the optimum are sensed as heat stress (HS) by all living organisms and represent one of the major environmental challenges for plants. Plants can cope with HS by activating specific defense mechanisms to minimize damage and ensure cellular functionality. One of the most common effects of HS is the o...

journal_title：Protoplasma

authors： Malerba M,Cerana R

更新日期：2018-07-01 00:00:00

abstract：:Narcissus tazetta is one of the major geophyte crops worldwide, but little is known about its cell biology. The narcissus storage organ was studied by monitoring scale cell biology during the growth stage and dormancy, and it was found that amyloplasts gradually increased in size and reached a maximum at dormancy. In ...

journal_title：Protoplasma

authors： Zaffryar S,Zimerman B,Abu-Abied M,Belausov E,Lurya G,Vainstein A,Kamenetsky R,Sadot E

更新日期：2007-01-01 00:00:00

abstract：:In the present investigation, we have used adenosine triphosphatase (ATPase) activity as biochemical test of toxic action of lindane that was explained by lipid peroxidation model. Study was also undertaken to ascertain the potential protective role of alpha-lipoic acid (ALA) and vitamin E on the same parameters. High...

journal_title：Protoplasma

authors： Bist R,Misra S,Bhatt DK

更新日期：2010-06-01 00:00:00

abstract：:We investigated the diurnal differences in the innermost surface of tracheid cell walls at various developmental stages from cambium to mature xylem. Cryptomeria japonica saplings were cultivated in a growth chamber with a light cycle set at 14 h of light and 10 h of darkness. Samples were collected from the saplings ...

journal_title：Protoplasma

authors： Hosoo Y,Imai T,Yoshida M

更新日期：2006-11-01 00:00:00

abstract：:The effects of β-amino butyric acid (BABA) on abiotic stress tolerance potential of three Vigna radiata varieties were studied. The reduction in the growth of seedlings subjected to NaCl/polyethylene glycol (PEG) stress is alleviated by BABA seed priming, which also enhanced photosynthetic pigment content and photosyn...

journal_title：Protoplasma

authors： Jisha KC,Puthur JT

更新日期：2016-03-01 00:00:00

abstract：:The larvae of Bittacidae, a cosmopolitan family in Mecoptera, have an interesting habit of spraying the body surface with soil through the anus after hatching, and each molts. The fine structure of Malpighian tubules, however, remains largely unknown in the larvae of Bittacidae to date. Here, we studied the ultrastruc...

journal_title：Protoplasma

authors： Liu L,Hua BZ

更新日期：2018-07-01 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：:Pollen development and germination were adversely affected by the presence of mercury, whereas low-concentrations stimulated the whole procedure. Mercury caused morphological anomalies during the tube growth, characterized by irregularly increasing diameters and swelling tips. The main effect was the anomalous cell wa...

journal_title：Protoplasma

authors： Sawidis T,Baycu G,Cevahir-Öz G,Weryszko-Chmielewska E

更新日期：2018-05-01 00:00:00

abstract：:Reactive carbonyl species methylglyoxal (MG) has always been regarded as a cytotoxic metabolite, but now is emerging to function as signal molecule in plants. However, whether MG can induce salt tolerance is elusive. In this study, treatment of wheat seeds with NaCl reduced seed germination, plant height, root length,...

journal_title：Protoplasma

authors： Li ZG,Duan XQ,Min X,Zhou ZH

更新日期：2017-09-01 00:00:00