Isolation and characterisation of two wheat beta-expansin genes expressed during male gametophyte development.

abstract：:The aim of this work was to study the activity of NAD(P)H:(quinone acceptor) oxidoreductase 1 (EC 1.6.99.2) in the regeneration of lipophilic antioxidants, alpha-tocopherol, and reduced-coenzyme Q analogs. First, we tested whether or not two isoforms of the NAD(P)H:(quinone acceptor) oxidoreductase 1 designated as "hy...

journal_title：Protoplasma

authors： Bello RI,Kagan VE,Tyurin V,Navarro F,Alcaín FJ,Villalba JM

更新日期：2003-05-01 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：: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：:During the past decade, there has been a paradigm shift in our understanding of the roles of intracellular lipid droplets (LDs). New genetic, biochemical and imaging technologies have underpinned these advances, which are revealing much new information about these dynamic organelles. This review takes a comparative ap...

journal_title：Protoplasma

authors： Murphy DJ

更新日期：2012-07-01 00:00:00

abstract：:The potential genotoxicity of Cu(2+) was investigated in Vicia faba and Pisum sativum seedlings in hydroponic culture conditions. Cu(2+) caused a dose-dependent increase in micronuclei frequencies in both plant models. Cytological analysis of root tips cells showed clastogenic and aneugenic effects of this heavy metal...

journal_title：Protoplasma

authors： Souguir D,Ferjani E,Ledoigt G,Goupil P

更新日期：2008-11-01 00:00:00

abstract：:We have shown previously that the durum wheat TdSOS1 excludes Na+ and Li+ ions outside cells. Moreover, this protein is activated by Arabidopsis kinase SOS2 through phosphorylation. The elimination of both SOS2 phosphorylation sites and the auto-inhibitory domain produces a hyperactive TdSOS1∆972 form, which have a ma...

journal_title：Protoplasma

authors： Feki K,Tounsi S,Masmoudi K,Brini F

更新日期：2017-07-01 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：:Some species of Spirogyra form rosette-shaped or rod-shaped rhizoids in the terminal cell of the filaments. In the present study, we analyzed an involvement of microtubules (MTs) in rhizoid differentiation. Before rhizoid differentiation, cortical MTs were arranged transversely to the long axis of cylindrical cells, r...

journal_title：Protoplasma

authors： Yoshida K,Inoue N,Sonobe S,Shimmen T

更新日期：2003-06-01 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：:Tradescantia virginiana leaf epidermal cells were plasmolysed by sequential treatment with 0.8 M and 0.3 M sucrose. Plasmolysis revealed adhesion of the plasma membrane to the cell wall at sites coinciding with cytoskeletal arrays involved in the polarisation of cells undergoing asymmetric divisions--cortical actin pa...

journal_title：Protoplasma

authors： Cleary AL

更新日期：2001-01-01 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：:According to the Cholodny-Went hypothesis, gravitropic differential growth is brought about by the redistribution of auxin (indolyl-3-acetic acid, IAA). We reinvestigated the relevance of different auxins and studied the role of ethylene in hypocotyls of sunflower and shoots and roots of rye and maize seedlings. Incub...

journal_title：Protoplasma

authors： Edelmann HG,Roth U

更新日期：2006-12-01 00:00:00

abstract：:This paper reports an efficient protoplast culture technique, the "extra thin alginate film" technique. The development of this improved method of protoplast culture was an outcome of an assessment of the efficiency and shortcomings of various protoplast culture techniques. The efficiency of this technique was evaluat...

journal_title：Protoplasma

authors： Pati PK,Sharma M,Ahuja PS

更新日期：2005-12-01 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 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：: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：:In order to corroborate the hypothesis that variations in the rate of spontaneous ultra-weak photon emission (UPE) from germinating seedlings are related to local variations of the lunisolar tidal force, a series of simultaneous tests was performed using the time courses of UPE collected from three plant species-corn,...

journal_title：Protoplasma

authors： Gallep CM,Barlow PW,Burgos RC,van Wijk EP

更新日期：2017-01-01 00:00:00

abstract：:By a detailed ontogenetic study of Polemonium caeruleum pollen, tracing each stage of development at high TEM resolution, we aim to understand the establishment of the pollen wall and to unravel the mechanisms underlying sporoderm development. The main steps of exine ontogeny in Polemonium caeruleum, observed in the m...

journal_title：Protoplasma

authors： Grigorjeva VV,Gabarayeva N

更新日期：2018-01-01 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：:Agrobacterium-mediated transformation of chickpea (Cicer arietinum L.) has been performed using cotyledonary node explants (CNs), which release phenolics upon excision that are detrimental to the viability of Agrobacterium tumefaciens and result in low transformation frequency. Twelve low molecular weight phenolic com...

journal_title：Protoplasma

authors： Yadav R,Mehrotra M,Singh AK,Niranjan A,Singh R,Sanyal I,Lehri A,Pande V,Amla DV

更新日期：2017-01-01 00:00:00

abstract：:Phenolics are involved in many of plants' biological functions. In particular, they play important roles in determining the quality of grape berries and the wine made from them, and can also act as antioxidants with beneficial effects for human health. Several enzymes are involved in the synthesis of phenolic compound...

journal_title：Protoplasma

authors： Molero de Ávila ME,Alarcón MV,Uriarte D,Mancha LA,Moreno D,Francisco-Morcillo J

更新日期：2019-01-01 00:00:00

abstract：:A convenient experimental system was established to test how cells derived from higher-plant internal tissues respond to mechanical stimulation. Short-term culture of tobacco ovules in vitro led to the generation of bar-shaped cells from the parenchyma tissue of the ovule funicle. These cells are still connected to th...

journal_title：Protoplasma

authors： Qu LH,Sun MX

更新日期：2008-01-01 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：:Iron (Fe) toxicity is one of the major abiotic stresses which limits the yield of lowland rice. This study aims to investigate the physiological, biochemical, and molecular aspects of two contrasting aromatic Joha rice, viz., Keteki and Kola Joha of Assam. Oxidative damage caused due to Fe2+ toxicity was quantitativel...

journal_title：Protoplasma

authors： Regon P,Dey S,Chowardhara B,Saha B,Kar S,Tanti B,Panda SK

更新日期：2020-10-17 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：:Fruit shape and ripening are major horticultural traits for many fruits and vegetable crops. Changes in fruit shape and ripening are often accomplished by altered cell division or cell expansion patterns. Gibberellic acids (GAs) are essential for tomato fruit development; however, the exact role and the underlying mec...

journal_title：Protoplasma

authors： Chen S,Wang XJ,Tan GF,Zhou WQ,Wang GL

更新日期：2020-05-01 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：:Despite great efforts in tissue engineering of the ureter, urinary bladder, and urethra, further research is needed in order to improve the patient's quality of life and minimize the economic burden of different lower urinary tract disorders. The nanostructured titanium dioxide (TiO2) scaffolds have a wide range of cl...

journal_title：Protoplasma

authors： Imani R,Pazoki M,Zupančič D,Kreft ME,Kralj-Iglič V,Veranič P,Iglič A

更新日期：2016-11-01 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

abstract：:Salt-stress-induced alterations in osmotic, ionic, and redox responses were studied in the early period of treatment (30 min to 5 days) in seedlings of Brassica juncea L. Roots and shoots under mild (50 mM) and severe (250 mM) NaCl stress were analyzed for growth, oxidative stress, osmolyte accumulation, antioxidant d...

journal_title：Protoplasma

authors： Ranjit SL,Manish P,Penna S

更新日期：2016-01-01 00:00:00