Study on programmed cell death and dynamic changes of starch accumulation in pericarp cells of Triticum aestivum L.

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：:Many studies have been carried out to investigate the histological structure of the trachea in many species of birds. However, the cellular organization of the trachea in the mallard duck is still unclear. This study was performed on 12 sexually mature male Mallard duck to demonstrate the cellular organization of the ...

journal_title：Protoplasma

authors： Mokhtar DM,Hussien MM

更新日期：2020-03-01 00:00:00

abstract：:The dinoflagellate Crypthecodinium cohnii Biecheler propagates by both binary and multiple fission. By a newly developed mutagenesis protocol based on using ethyl methanesulfonate and a cell size screening method, a cell cycle mutant, mf2, was isolated with giant cells which predominantly divide by multiple fission. T...

journal_title：Protoplasma

authors： Lam CM,Chong C,Wong JT

更新日期：2001-01-01 00:00:00

abstract：:In this study, tansy (Tanacetum vulgare L.) in vitro culture was established from seeds collected from natural populations. The multiplication of plantlets was conducted through shoot tips that exhibited potent apical growth and regeneration capacities on basal medium (BM), without the addition of any plant growth reg...

journal_title：Protoplasma

authors： Devrnja N,Krstić-Milošević D,Janošević D,Tešević V,Vinterhalter B,Savić J,Ćalić D

更新日期：2020-11-27 00:00:00

abstract：:Seed storage proteins (SSPs) have been studied for more than 250 years because of their nutritional value and their impact on the use of grain in food processing. More recently, the use of seeds for the production of recombinant proteins has rekindled interest in the behavior of SSPs and the question how they are able...

journal_title：Protoplasma

authors： Ibl V,Stoger E

更新日期：2012-04-01 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：:In addition to small molecules such as sugars and amino acids, phloem sap contains macromolecules, including mRNA and proteins. It is generally assumed that all molecules in the phloem sap are on the move from source to sink, but recent evidence suggests that the macromolecules' direction of movement can be controlled...

journal_title：Protoplasma

authors： Malter D,Wolf S

更新日期：2011-01-01 00:00:00

abstract：:Indeterminate growth and the production of new organs in plants require a constant supply of new cells. The majority of these cells are produced in mitotic regions called meristems. For primary or tip growth of the roots and shoots, the meristems are located in the apices. These apical meristems have been shown to fun...

journal_title：Protoplasma

authors： Matte Risopatron JP,Sun Y,Jones BJ

更新日期：2010-12-01 00:00:00

abstract：:The wild grass species Brachypodium distachyon (L.) has been proposed as a new model for temperate grasses. Among the biotechnological tools already developed for the species, an efficient induction protocol of somatic embryogenesis (SE) using immature zygotic embryos has provided the basis for genetic transformation ...

journal_title：Protoplasma

authors： Oliveira EJ,Koehler AD,Rocha DI,Vieira LM,Pinheiro MVM,de Matos EM,da Cruz ACF,da Silva TCR,Tanaka FAO,Nogueira FTS,Otoni WC

更新日期：2017-09-01 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：: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：:Telocytes (TCs), a novel type of interstitial cells, are involved in tissue homeostasis maintenance. This study aimed to investigate TC presence in the interstitium of mouse testis. Additionally, inactivation of the G-coupled membrane estrogen receptor (GPER) in the testis was performed to obtain insight into TC funct...

journal_title：Protoplasma

authors： Pawlicki P,Hejmej A,Milon A,Lustofin K,Płachno BJ,Tworzydlo W,Gorowska-Wojtowicz E,Pawlicka B,Kotula-Balak M,Bilinska B

更新日期：2019-03-01 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：:In the vascular plant Arabidopsis thaliana, synthesis of cysteine and its precursors O-acetylserine and sulfide is distributed between the cytosol, chloroplasts, and mitochondria. This compartmentation contributes to regulation of cysteine synthesis. In contrast to Arabidopsis, cysteine synthesis is exclusively restri...

journal_title：Protoplasma

authors： Birke H,Müller SJ,Rother M,Zimmer AD,Hoernstein SN,Wesenberg D,Wirtz M,Krauss GJ,Reski R,Hell R

更新日期：2012-06-01 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：: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：:Mastigonemes, tripartite tubular hairs on the anterior flagellum of Phytophthora zoospores, are instrumental for disease dissemination to new host plants. A previous study showed that PnMas2 was part of the tubular shaft of Phytophthora parasitica mastigonemes. In the current study, genes encoding two related proteins...

journal_title：Protoplasma

authors： Hee WY,Blackman LM,Hardham AR

更新日期：2019-03-01 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：:Here, we describe the development of chloroplasts and the buildup of the thylakoid membranes in growing Arabidopsis leaves. Organelles were analyzed from three distinct positions, namely, at the tip, the upper leaf margin, and the base from leaves 1, 3, 5, and 7 of 14-day-old plants. Clear developmental gradients are ...

journal_title：Protoplasma

authors： Gügel IL,Soll J

更新日期：2017-09-01 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：:Drought tolerance is a complex trait that is governed by multiple genes. The study presents differential transcriptome analysis between drought-tolerant (Triticum aestivum Cv. C306) and drought-sensitive (Triticum aestivum Cv. WL711) genotypes, using Affymetrix GeneChip® Wheat Genome Array. Both genotypes exhibited di...

journal_title：Protoplasma

authors： Kumar J,Gunapati S,Kianian SF,Singh SP

更新日期：2018-09-01 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：: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

abstract：:Characean internodal cells develop alternating patterns of acid and alkaline zones along their surface in order to facilitate uptake of carbon required for photosynthesis. In this study, we used a pH-indicating membrane dye, 4-heptadecylumbiliferone, to study the kinetics of alkaline band formation and decomposition. ...

journal_title：Protoplasma

authors： Eremin A,Bulychev AA,Kluge C,Harbinson J,Foissner I

更新日期：2019-11-01 00:00:00

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：:In this study, the filamentous green alga Zygogonium ericetorum (Zygnematales, Chlorophyta), collected at its natural habitat in the high alps, was investigated by light, scanning, and transmission electron microscopy. The field samples were separated into a moist fraction when wetted by splattering water of a nearby ...

journal_title：Protoplasma

authors： Holzinger A,Tschaikner A,Remias D

更新日期：2010-07-01 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：:The present investigation analyzes the in vitro P solubilization [Ca-P, Al-P, Fe(II)-P, and Fe(III)-P] efficiency of native PSB strains from acid soils of Odisha and exploitation of the same through biofertilization in peanut (Arachis hypogaea L.) growth and P acquisition. One hundred six numbers of soil samples with ...

journal_title：Protoplasma

authors： Pradhan M,Sahoo RK,Pradhan C,Tuteja N,Mohanty S

更新日期：2017-11-01 00:00:00

abstract：:Short-time temperature effects (34-40 °C) on microtubule (MT) organization and on cell structure of young epidermal leaf cells of the seagrass Cymodocea nodosa were investigated under laboratory conditions using transmission electron microscopy (TEM) and tubulin immunofluorescence. The interphase MT network was affect...

journal_title：Protoplasma

authors： Koutalianou M,Orfanidis S,Katsaros C

更新日期：2016-03-01 00:00:00

abstract：:Heat shock protein 90 (Hsp90) is an abundant cytosolic protein. In higher eukaryotes two isoforms of Hsp90 exist, Hsp90 alpha and Hsp90 beta. Hsp90 was purified from rat liver and after sodium dodecyl sulfate-polyacrylamide gel electrophoresis revealed a double band at about 90 kDa. The two bands were separated and id...

journal_title：Protoplasma

authors： Langer T,Fasold H

更新日期：2001-01-01 00:00:00