Ultrastructure of the larval Malpighian tubules in Terrobittacus implicatus (Mecoptera: Bittacidae).

abstract：:Titanium dioxide nanoparticles (TiO2-NP) are increasingly being proposed for nanoagriculture but their effect on photosynthesis is limited and contradictory, mostly regarding putative chronical effects associated to the exposure to the commercial P25 formulation (anatase:rutile). This research aims at evaluating how c...

journal_title：Protoplasma

authors： Dias MC,Santos C,Pinto G,Silva AMS,Silva S

更新日期：2019-01-01 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：: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：:Brachypodium distachyon has emerged as a model plant for the improvement of grain crops such as wheat, barley and oats and for understanding basic biological processes to facilitate the development of grasses as superior energy crops. Brachypodium is also the first species of the grass subfamily Pooideae with a sequen...

journal_title：Protoplasma

authors： Sharma A,Singh MB,Bhalla PL

更新日期：2015-03-01 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：: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：:The effectiveness of 2,3-butanedione monoxime (BDM) as an inhibitor of plant myosins has been investigated. Three myosin-dependent motility phenomena in plants, namely cytoplasmic streaming in Chara corallina, light-dependent chloroplast repositioning in Elodea sp., and brefeldin A(BFA)-induced Golgi membrane dynamics...

journal_title：Protoplasma

authors： McCurdy DW

更新日期：1999-01-01 00:00:00

abstract：:Plant embryogenesis is regulated by differential distribution of the plant hormone auxin. However, the cells establishing these gradients during microspore embryogenesis remain to be identified. For the first time, we describe, using the DR5 or DR5rev reporter gene systems, the GFP- and GUS-based auxin biosensors to m...

journal_title：Protoplasma

authors： Dubas E,Moravčíková J,Libantová J,Matušíková I,Benková E,Zur I,Krzewska M

更新日期：2014-09-01 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：:Sugarcane shows reduced crop stand under relatively suboptimal conditions; the main reason for this is its sensitivity to ionic stress in the soil solution. This research was performed to explore some physiological and developmental changes in the immature sugarcane buds submitted to salt stress and possible role of g...

journal_title：Protoplasma

authors： Rasheed R,Wahid A,Hussain I,Mahmood S,Parveen A

更新日期：2016-05-01 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：:Cytomixis is a poorly studied process of nuclear migration between plant cells, discovered in microsporogenesis of several hundreds of plant species. The chromosomes that migrate between tobacco microsporocytes have been for the first time identified using fluorescence in situ hybridization (FISH), and the question wh...

journal_title：Protoplasma

authors： Mursalimov S,Deineko E

更新日期：2017-05-01 00:00:00

abstract：:Despite more than 130 years of research, phloem loading is far from being understood in gymnosperms. In part this is due to the special architecture of their leaves. They differ from angiosperm leaves among others by having a transfusion tissue between bundle sheath and the axial vascular elements. This article review...

journal_title：Protoplasma

authors： Liesche J,Martens HJ,Schulz A

更新日期：2011-01-01 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：: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 paper reports studies, including histological and ultrastructural analyses, of in vitro cell proliferation and development of immature endosperm tissue isolated from caryopses of Triticum aestivum, Triticum durum, and Triticosecale plants. Endosperm isolated at 7-10 days post-anthesis developed well on MS medium s...

journal_title：Protoplasma

authors： Popielarska-Konieczna M,Kozieradzka-Kiszkurno M,Tuleja M,Ślesak H,Kapusta P,Marcińska I,Bohdanowicz J

更新日期：2013-02-01 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：: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：:Frost resistance of sprouting Picea abies shoots is insufficient for survival of naturally occurring late frosts. The cellular changes during sprouting appeared to be responsible for frost damage as frost events that damaged sprouting shoots did not damage older needles and stems. Whilst resting buds showed initial fr...

journal_title：Protoplasma

authors： Neuner G,Beikircher B

更新日期：2010-07-01 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：: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 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：: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：: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：:Previous complementation of a chitin synthase class Vb null mutant (Colletotrichum graminicola chsA) indicated that the encoded protein is responsible for approximately 30% of the conidial chitin, is essential for conidial wall strength in media with high water potential, and contributes to strength of hyphal tips. We...

journal_title：Protoplasma

authors： Amnuaykanjanasin A,Epstein L

更新日期：2006-05-01 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：:Through reverse transcription-polymerase chain reaction and Northern blot analysis, we identified TBK5, a novel plant-specific kinesin-like protein (KLP) that is highly expressed in interphase tobacco BY-2 cells. TBK5 mRNA was present at a high level throughout the growth cycle, even in cells that had entered the stat...

journal_title：Protoplasma

authors： Matsui K,Collings D,Asada T

更新日期：2001-01-01 00:00:00

abstract：:The subtribe Cajaninae of papilionoid legumes has a pantropical distribution and comprises approximately 490 species. These species have diversified throughout dry environments where there are high temperatures and strong light. The subtribe stands out because all its representatives have vesicular glands. In addition...

journal_title：Protoplasma

authors： De Vargas W,Fortuna-Perez AP,Lewis GP,Piva TC,Vatanparast M,Machado SR

更新日期：2019-03-01 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：: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