Population differences in the expression of nucleolus organizer regions in the grasshopper Eyprepocnemis plorans.

abstract：:We used an ultraviolet microbeam to cut individual kinetochore spindle fibres in metaphase crane-fly spermatocytes. We then followed the growth of the "kinetochore stubs", the remnants of kinetochore fibres that remain attached to kinetochores. Kinetochore stubs elongate with constant velocity by adding tubulin subuni...

journal_title：Protoplasma

authors： Forer A,Spurck T,Pickett-Heaps JD

更新日期：2007-01-01 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：: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：: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：:Nematocysts are the taxon-defining features of all cnidarians including jellyfish, sea anemones, and corals. They are highly sophisticated organelles used for the capture of prey and defense. The nematocyst capsule is produced within a giant post-Golgi vesicle, which is continuously fed by proteins from the secretory ...

journal_title：Protoplasma

authors： Ozbek S

更新日期：2011-10-01 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：: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：:Endoplasmic reticulum (ER) immunolabeling in developing stomatal complexes and in the intervening cells of the stomatal rows (ICSRs) of Zea mays revealed that the cortical-ER forms distinct aggregations lining locally expanding wall regions. The polarized subsidiary cell mother cells (SMCs), displayed a cortical-ER-pa...

journal_title：Protoplasma

authors： Giannoutsou EP,Apostolakos P,Galatis B

更新日期：2011-04-01 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：: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：:Lemna species are reported to accumulate a variety of metals from contaminated/polluted sites. Cadmium is a nonessential element for plant metabolism. In this work, we aimed to investigate physiological responses to low doses of cadmium (up to 100 microM). From exposure to the lowest Cd concentration (1 microM) to the...

journal_title：Protoplasma

authors： Malec P,Maleva MG,Prasad MN,Strzałka K

更新日期：2010-04-01 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 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：: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：:Octanal is a potential alternative to chemical fungicides in controlling postharvest disease of citrus fruit. In this study, the antifungal activity and the underlying mechanism of octanal against spore germination of Penicillium digitatum, one of the main postharvest pathogens in citrus, were investigated. Results sh...

journal_title：Protoplasma

authors： Dou S,Liu S,Xu X,OuYang Q,Tao N

更新日期：2017-07-01 00:00:00

abstract：:Salt stress in the rice field is one of the most common abiotic stresses, reducing crop productivity, especially at reproductive stage, which is very sensitive to salt stress. The aim of this investigation was to study mRNA-related Na+ uptake/translocation and Na+ enrichment in the cellular level, leading to physiolog...

journal_title：Protoplasma

authors： Theerawitaya C,Samphumphuang T,Tisarum R,Siangliw M,Cha-Um S,Takabe T,Toojinda T

更新日期：2020-11-01 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：: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：: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：: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：: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：:We have analyzed the expression of key genes orchestrating tail regeneration in lizard under normal and scarring conditions after cauterization. At 1-day post-cauterization (1 dpc), the injured blastema contains degenerating epithelial and mesenchymal cells, numerous mast cells, and immune cells. At 3 and 7 dpc, a str...

journal_title：Protoplasma

authors： Degan M,Dalla Valle L,Alibardi L

更新日期：2021-01-01 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：:The terrestrial carnivorous species Utricularia dichotoma is known for a great phenotypic plasticity and unusual vegetative organs. Our investigation on 22 sources/populations revealed that after initiation of a leaf and two bladders on a stolon, a bud was formed in the proximal axil of the leaf, developing into a ros...

journal_title：Protoplasma

authors： Reut MS,Płachno BJ

更新日期：2020-03-01 00:00:00

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：: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：:Ripening which leads to fruit senescence is an inimitable process characterized by vivid changes in color, texture, flavor, and aroma of the fleshy fruits. Our understanding of the mechanisms underlying the regulation of fruit ripening and senescence is far from complete. Molecular and biochemical studies on tomato (S...

journal_title：Protoplasma

authors： Kumar V,Irfan M,Ghosh S,Chakraborty N,Chakraborty S,Datta A

更新日期：2016-03-01 00:00:00

abstract：:Latex is a complex plant secretion with both ecological and economic importance. There is little information currently available on the cytological aspects of the ontogenesis of anastomosed laticifers, the ducts originating through the lysis of adjacent cell walls. Hancornia speciosa is a tree typical of the Cerrado (...

journal_title：Protoplasma

authors： Gonçalves MP,Mercadante-Simões MO,Ribeiro LM

更新日期：2018-11-01 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：:In this paper, we investigated whether nitric oxide (NO) participated in the regulation of the ascorbate-glutathione (AsA-GSH) cycle by exogenous jasmonic acid (JA) in the leaves of wheat seedlings under drought stress. The findings of our study showed that drought stress significantly enhanced the AsA-GSH cycle by up...

journal_title：Protoplasma

authors： Shan C,Zhou Y,Liu M

更新日期：2015-09-01 00:00:00