Authors:N. Li, Z. Yu, L. Wang, Y. Zheng, J. Jia, Q. Wang, M. Zhu, X. Liu, X. Xia, and W. Li
The aim of this study was to investigate the effects of maternal lead exposure on the learning and memory ability and expression of tau protein phosphorylation (P-tau) and beta amyloid protein (Aβ) in hippocampus of mice offspring. Pb exposure initiated from beginning of gestation to weaning. Pb acetate administered in drinking solutions was dissolved in distilled deionized water at the concentrations of 0.1%, 0.5% and 1% groups. On the 21
of postnatal day, the learning and memory ability of the mouse pups was tested by Water Maze test and the Pb levels in blood and hippocampus of the offspring were also determined. The expression of P-tau and Aβ in hippocampus was measured by immunohistochemistry and Western blotting. The Pb levels in blood and hippocampus of all exposure groups were significantly higher than that of the control group (
< 0.05). In Water Maze test, the performances of 0.5% and 1% groups were worse than that of the control group (
< 0.05). The expression of P-tau and Aβ was increased in Pb exposed groups than that of the control group (
< 0.05). Tau hyper-phosphorylation and Aβ increase in the hippocampus of pups may contribute to the impairment of learning and memory associated with maternal Pb exposure.
Authors:Z. Fang, D. Sun, J. Gao, M. Guo, L. Sun, Y. Wang, Y. Lıu, R. Wang, Q. Deng, D. Xu, and R. Gooneratne
Shewanella putrefaciens supernatant was found to increase the virulence factors of Vibrio parahaemolyticus by eﬃciently degrading its acylhomoserine lactone (AHL). To further reveal the regulation mechanism and its key degrading enzyme, a potential AHL-degrading enzyme acylase (Aac) from S. putrefaciens was cloned, and the inﬂuences of temperature, pH, protein modiﬁers, and metals on Aac were tested. Aac was signiﬁcantly inﬂuenced by temperature and pH, and exhibited the highest AHL-degrading activity at temperatures of 37 °C and pH of 8. Mg2+ and Fe2+ can further increase the AHL-degrading activity. 10 mM EDTA inhibited its activity possibly by chelating the co-factors (metals) required for Aac activity. Tryptophan and arginine were identiﬁed as key components for Aac activity that are critical to its AHL-degrading activity. This study provides useful information on Aac and for V. parahaemolyticus control.
Aegiolops kotschyi cytoplasmic male sterile system often results in part of haploid plants in wheat (Triticum aestivum L.). To elucidate the origin of haploid, 235 wheat microsatellite (SSR) primers were randomly selected and screened for polymorphism between haploid (2n = 3x = 21 ABD) and its parents, male-sterile line YM21 (2n = 6x = 42 AABBDD) and male fertile restorer YM2 (2n = 6x = 42 AABBDD). About 200 SSR markers yielded clear bands from denatured PAGE, of which 180 markers have identifiable amplification patterns, and 20 markers (around 8%) resulted in different amplification products between the haploid and the restorer, YM2. There were no SSR markers that were found to be distinguishable between the haploid and the male sterile line YM21. In addition, different distribution of HMW-GS between endosperm and seedlings from the same seeds further confirmed that the haploid genomes were inherited from the maternal parent. After haploidization, 1.7% and 0.91% of total sites were up- and down-regulated exceeding twofold in the shoot and the root of haploid, respectively, and most of the differentially expressed loci were up/down-regulated about twofold. Out of the sensitive loci in haploid, 94 loci in the shoot, 72 loci in the root can be classified into three functional subdivisions: biological process, cellular component and molecular function, respectively.
Authors:X.M. Fang, H.Z. She, C. Wang, X.B. Liu, Y.S. Li, J. Nie, R.W. Ruan, T. Wang, and Z.L. Yi
Waxy wheat (Triticum aestivum L.) is grown throughout the world for its specific quality. Fertilization and planting density are two crucial factors that affect waxy wheat yield and photosynthetic capacity. The objectives of the research were to determine the effects of fertilization and planting density on photosynthetic characteristics, yield, and yield components of waxy wheat, including Yield, SSR, TGW, GNPP, GWPP, PH, HI, Pn, Gs, Ci, E and WUE using the method of field experiment, in which there were three levels (150, 300, and 450 kg ha−1) of fertilizer application rate and three levels (1.35, 1.8, and 2.25 × 106 plants ha−1) of planting density. The results suggested that photosynthetic characteristics, yield, and yield components had close relationship with fertilization levels and planting density. Under the same plant density, with the increase of fertilization, Yield, SSR, TGW, GNPP, GWPP, HI, Pn, Gs, E and WUE increased and then decreased, PH increased, but Ci decreased. Under the same fertilization, with the increase of plant density, Yield, SSR, TGW, GNPP, GWPP, HI increased and then decreased, PH, Pn, Gs and E increased, PH and WUE declined. The results also showed that F2 (300 kg ha−1) and D2 (1.8 × 106 plants ha−1) was a better match in this experiment, which could obtain a higher grain yield 4961.61 kg ha−1. Consequently, this combination of fertilizer application rate and plant densities are useful to get high yield of waxy wheat.
Authors:C.L. Liu, X.Y. Wang, Z.M. Wang, S.S. Li, C.T. Xin, H.F. Wang, B. Li, and L. Jiang
The migration of 99Tc in a weak loess aquifer was investigated in-situ with undisturbed aquifer medium columns. The columns were obtained horizontally at a depth of 3236 m in an Underground Research Facility (URF). Quartz containing 3H (HTO) and 99Tc (in the form of 99TcO4-) was introduced into one end of the columns and the columns were covered tightly. Aquifer water was introduced into the columns directly from an experimental shaft in the UFR. Effluents from the columns were collected and the activity of 3H and 99Tc were determined with a liquid scintillation analyzer. The breakthrough curves of 3H and 99Tc indicate that 99Tc migrates a little faster than that 3H does in the aquifer.
Authors:Y. C. Xiao, L. T. Liu, J. J. Bian, C. Q. Yan, L. Ye, M. X. Zhao, Q. S. Huang, W. Wang, K. Liang, Z. F. Shi, and X. Ke
Shuganjieyu (SGJY) capsule is a classical formula widely used in Chinese clinical application. In this paper, an ultra-performance liquid chromatography coupled with electrospray ionization and ion trap mass spectrometry has been established to separate and identify the chemical constituents of SGJY and the multiple constituents of SGJY in rats. The chromatographic separation was performed on a C18 RRHD column (150 × 2.1 mm, 1.8 μm), while 0.1% formic acid–water and 0.1% formic acid–acetonitrile was used as mobile phase. Mass spectral data were acquired in both positive and negative modes. On the basis of the characteristic retention time (Rt) and mass spectral data with those of reference standards and relevant references, 73 constituents from the SGJY and 15 ingredients including 10 original constituents and 5 metabolites from the rat plasma after oral administration of SGJY were identified or tentatively characterized. This study provided helpful chemical information for further pharmacology and active mechanism research on SGJY.
Authors:S. Y. Kondratyuk, L. Lőkös, E. Farkas, S.-H. Jang, D. Liu, J. Halda, P.-E. Persson, M. Hansson, I. Kärnefelt, A. Thell, and J.-S. Hur
Three new genera Coppinsidea, Vandenboomia and Wolseleyidea are described and the genera Ivanpisutia, Lecaniella and Myrionora are resurrected on the basis of a phylogenetic analysis of multi-locus sequence data of the Ramalinaceae including the nuclear protein-coding marker rpb2, the internal transcribed spacer and a fragment of the small mitochondrial subunit. The genus Hertelidea was positioned within the Ramalina clade of the phylogenetic tree of the Ramalinaceae. Bacidia sipmanii, Phyllopsora chlorophaea, P. castaneocincta and Ramalina subbreviuscula were recorded from South Korea for the first time here confirming by molecular data, too.
Forty-eight new combinations are proposed: Bacidia alnetorum (basionym: Biatora alnetorum S. Ekman et Tønsberg), Biatora amazonica (basionym: Phyllopsora amazonica Kistenich et Timdal), Biatora cuyabensis (basionym: Lecidea cuyabensis Malme), Biatora halei (basionym: Pannaria halei Tuck.), Biatora kalbii (basionym: Phyllopsora kalbii Brako), Biatora subhispidula (basionym: Psoroma subhispidulum Nyl.), Coppinsidea alba (basionym: Catillaria alba Coppins et Vězda), Coppinsidea aphana (basionym: Lecidea aphana Nyl.), Coppinsidea croatica (basionym: Catillaria croatica Zahlbr.), Coppinsidea fuscoviridis (basionym: Bilimbia fuscoviridis Anzi), Coppinsidea pallens (basionym: Bilimbia pallens Kullh.), Coppinsidea ropalosporoides (basionym: Gyalidea ropalosporoides S. Y. Kondr., L. Lőkös et J.-S. Hur), Coppinsidea scotinodes (basionym: Lecidea scotinodes Nyl.), Coppinsidea sphaerella (basionym: Lecidea sphaerella Hedl.), Ivanpisutia hypophaea (basionym: Biatora hypophaea Printzen et Tønsberg), Ivanpisutia ocelliformis (basionym: Lecidea ocelliformis Nyl.), Lecaniella belgica (basionym: Lecania belgica van den Boom et Reese Naesb.), Lecaniella cyrtellina (basionym: Lecanora cyrtellina Nyl.), Lecaniella dubitans (basionym: Lecidea dubitans Nyl.), Lecaniella erysibe (basionym: Lichen erysibe Ach.), Lecaniella hutchinsiae (basionym: Lecanora hutchinsiae Nyl.), Lecaniella naegelii (basionym: Biatora naegelii Hepp), Lecaniella prasinoides (basionym: Lecania prasinoides Elenkin), Lecaniella sylvestris (basionym: Biatora sylvestris Arnold), Lecaniella tenera (basionym: Scoliciosporum tenerum Lönnr.), Mycobilimbia albohyalina (basionym: Lecidea anomala f. albohyalina Nyl.), Mycobilimbia cinchonarum (basionym: Triclinum cinchonarum Fée), Mycobilimbia concinna (basionym: Phyllopsora concinna Kistenich et Timdal), Mycobilimbia ramea (basionym: Bacidina ramea S. Ekman), Mycobilimbia siamensis (basionym: Phyllopsora siamensis Kistenich et Timdal), Myrionora australis (basionym: Biatora australis Rodr. Flakus et Printzen), Myrionora ementiens (basionym: Lecidea ementiens Nyl.), Myrionora flavopunctata (basionym: Lecanora flavopunctata Tønsberg), Myrionora globulosa (basionym: Lecidea globulosa Flörke), Myrionora hemipolia (basionym: Lecidea arceutina f. hemipolia Nyl.), Myrionora lignimollis (basionym: Biatora ligni-mollis T. Sprib. et Printzen), Myrionora malcolmii (basionym: Phyllopsora malcolmii Vězda et Kalb), Myrionora vacciniicola (basionym: Lecidea vacciniicola Tønsberg), Phyllopsora agonimioides (basionym: Coenogonium agonimioides J. P. Halda, S.-O. Oh et J.-S. Hur), Phyllopsora sunchonensis (basionym: Agonimia sunchonensis S. Y. Kondr. et J.-S. Hur), Vandenboomia chlorotiza (basionym: Lecidea chlorotiza Nyl.), Vandenboomia falcata (basionym: Lecania falcata van den Boom, M. Brand, Coppins, Magain et Sérus.), Wolseleyidea africana (basionym: Phyllopsora africana Timdal et Krog), Wolseleyidea byssiseda (basionym: Lecidea byssiseda Nyl. ex Hue), Wolseleyidea canoumbrina (basionym: Lecidea canoumbrina Vain.), Wolseleyidea furfurella (basionym: Phyllopsora furfurella Kistenich et Timdal), Wolseleyidea ochroxantha (basionym: Lecidea ochroxantha Nyl.), and Wolseleyidea swinscowii (basionym: Phyllopsora swinscowii Timdal et Krog). The combination Biatora longispora (Degel.) Lendemer et Printzen is validated here. The new names Biatora vezdana for Lecania furfuracea Vĕzda and Coppinsidea vainioana for Lecidea sphaeroidiza Vain. are proposed. The phenomenon of presence of ‘extraneous mycobiont DNA’ in lichen association, i.e. DNA, belonging neither to mycobiont nor photobiont or to endophytic fungi is for the first time illustrated. So the presence of nrITS and mtSSU sequences of crustose lichen Coppinsidea ropalosporoides in thalli of crustose Verrucaria margacea and foliose Kashiwadia orientalis, as well as nrITS of Phyllopsora sp. KoLRI in Agonimia pacifica and Biatora longispora, or nrITS and mtSSU of Biatora longispora in thalli of Agonimia pacifica, Oxneriopsis oxneri and Pyxine limbulata, Ivanpisutia oxneri in thalli of Rinodina xanthophaea, etc. is documented. Scarce cases of presence of ‘extraneous mycobiont DNA’ in representatives of the Teloschistaceae, Physciaceae known from literature data are discussed, too.
Authors:S. Y. Kondratyuk, L. Lőkös, E. Farkas, S.-H. Jang, D. Liu, J. Halda, P.-E. Persson, M. Hansson, I. Kärnefelt, A. Thell, Z. Fačkovcová, Y. Yamamoto, and J.-S. Hur
The new for science genus Loekoeslaszloa S. Y. Kondr. et J.-S. Hur, confirmed by three gene phylogeny of the subfamily Teloschistoideae of the Teloschistaceae based on nrITS, nrLSU and mtSSU sequences, and ten new to science species from Eastern Asia, i.e. from South Korea: Bacidina loekoesiana S. Y. Kondr. et J.-S. Hur, Fauriea jejuensis S. Y. Kondr., L. Lőkös et J.-S. Hur, Gyalecta ulleungdoensis S. Y. Kondr., L. Lőkös et J.-S. Hur, Loekoeslaszloa huriana S. Y. Kondr., Orientophila dodongana S. Y. Kondr., L. Lőkös et J.-S. Hur, O. imjadoensis S. Y. Kondr., L. Lőkös et J.-S. Hur, O. incheonensis S. Y. Kondr., L. Lőkös et J.-S. Hur, Oxneriopsis taehaensis S. Y. Kondr., L. Lőkös et J.-S. Hur, Yoshimuria ivanpisutiana S. Y. Kondr., L. Lőkös et J.-S. Hur and Y. seokpoensis S. Y. Kondr., L. Lőkös et J.-S. Hur are described, illustrated and compared with closely related taxa.
Molecular data for the recently described species Flavoplaca laszloana are for the first time provided. Position of Tassiloa magellanica in the subfamily Teloschistoideae as well as Yoshimuria stipitata in the Ikaerioideae ad int. is for the first time illustrated.
An identification key to Fauriea species (including six species, i.e.: F. chujaensis, F. jejuensis, F. orientochinensis, F. patwolseleyae, F. tabidella and F. yonaguniensis), a key to Orientophila species of the Eastern Asian region (of the Orientophila loekoesii and the O. diffluens groups), and a key to Yoshimuria and Loekoeslaszloa species of the Eastern Asian region (including four species, i.e.: Y. galbina, Y. ivanpisutiana, Y. seokpoensis, and Y. spodoplaca, as well as Loekoeslaszloa geumohdoensis and L. huriana) are presented. Seven new combinations, i.e. Fauriea patwolseleyae (basionym: Caloplaca patwolseleyae S. Y. Kondr., U. Jayalal et J.-S. Hur), Fauriea tabidella (basionym: Lecanora tabidella Nyl.), Loekoeslaszloa geumohdoensis (basionym: Mikhtomia geumohdoensis S. Y. Kondr., D. Liu et Hur), Niesslia coarctatae (basionym: Stigmidium coarctatae S. Y. Kondr., L. Lőkös et J.-S. Hur), Opeltia epiphyta (basionym: Caloplaca epiphyta Lynge), Tassiloa magellanica (basionym: Caloplaca magellanica Søchting et Sancho) and Yoshimuria stipitata (basionym: Caloplaca stipitata Wetmore) are proposed. Yoshimuria galbina and Lecanora ussuriensis are for the first time recorded from Japan.
Authors:S. Y. Kondratyuk, P.-E. Persson, M. Hansson, L. Lőkös, D. Liu, J.-S. Hur, I. Kärnefelt, and A. Thell
Two new genera in the subfamily Teloschistoideae (Teloschistaceae, Teloschistales) are described: Hosseusiella S. Y. Kondr., L. Lőkös et A. Thell for the Caloplaca chilensis group including three South American species and Rehmanniella S. Y. Kondr. et J.-S. Hur for the new species, R. wirthii S. Y. Kondr. from South Africa. The new genera are supported by a three-gene phylogeny based on ITS1/ITS2 nrDNA, 28S nrLSU, and 12S mtSSU sequences. The new taxonomic position of Elixjohnia ovis-atra in the subfamily Teloschistoideae is discussed. The two new species Hosseusiella gallowayiana and Rehmanniella wirthii are described, illustrated and compared with closely related taxa. Hosseusiella gallowayiana is recorded for the first time as the host for the lichenicolous fungus Arthonia tetraspora S. Y. Kondr. A key to the species of Hosseusiella is included, as well as new information of the related genus Follmannia. The following new combinations are proposed: Hosseusiella chilensis (Kärnefelt, S. Y. Kondr., Frödén et Arup) S. Y. Kondr., L. Lőkös, Kärnefelt et A. Thell, Hosseusiella pergracilis (Zahlbr.) S. Y. Kondr., L. Lőkös, Kärnefelt et A. Thell and Elixjohnia ovis-atra (Søchting, Søgaard et Sancho) S. Y. Kondr.