Enzymic Mechanism of Starch Breakdown in Germinating Rice Seeds: 8. Immunohistochemical Localization of beta-Amylase.

abstract：:A new ultraviolet (UV)-A/B absorbing pigment with maxima at 312 and 330 nanometers from the cosmopolitan terrestrial cyanobacterium Nostoc commune is described. The pigment is found in high amounts (up to 10% of dry weight) in colonies grown under solar UV radiation but only in low concentrations in laboratory culture...

journal_title：Plant physiology

authors： Scherer S,Chen TW,Böger P

更新日期：1988-12-01 00:00:00

abstract：:Formation of the chlorophyll and heme precursor delta-aminolevulinic acid (ALA) from glutamate in soluble extracts of Chlorella vulgaris, Euglena gracilis, and Cyanidium caldarium was stimulated by addition of low molecular weight RNA derived from greening algae or plant tissue. Enzyme extracts were prepared for the A...

journal_title：Plant physiology

authors： Weinstein JD,Mayer SM,Beale SI

更新日期：1986-12-01 00:00:00

abstract：:Electron transport activity at the cell surface of intact oat seedlings (Avena sativa L. cv Garry) was examined by measuring the oxidation and/or reduction of agents in the medium bathing the roots. Oxidation of NADH with or without added electron acceptors and reduction of ferricyanide by an endogenous electron donor...

journal_title：Plant physiology

authors： Rubinstein B,Stern AI,Stout RG

更新日期：1984-10-01 00:00:00

abstract：:Purified glycopeptides derived from yeast invertase act as highly potent elicitors in suspension-cultured tomato (Lycopersicon esculentum [L.] Mill) cells, inducing ethylene biosynthesis and phenylalanine ammonia lyase half-maximally at concentrations of 1 to 5 nM. We previously demonstrated the presence of a high-aff...

journal_title：Plant physiology

authors： Fath A,Boller T

更新日期：1996-12-01 00:00:00

abstract：:Conditions influencing the opening of the bean (Phaseolus vulgaris L.) and cotton (Gossypium hirsutum L.) hypocotyl hook were defined. Such hooks were shown to undergo geotropic curvature; orientation of the hook with respect to gravity greatly affected the observed opening. Cotton and bean hooks behaved exactly oppos...

journal_title：Plant physiology

authors： Powell RD,Morgan PW

更新日期：1970-05-01 00:00:00

abstract：:When air-dry urediospores of the wheat stem rust, Puccinia graminis f. sp. tritici, are exposed to temperatures below freezing, their germinability is markedly reduced, even after prolonged thawing at room temperature. Germinability is fully restored by a brief heat-shock or by vapor phase hydration. We have found tha...

journal_title：Plant physiology

authors： Maheshwari R,Sussman AS

更新日期：1971-02-01 00:00:00

abstract：:Starch production in all plants examined is altered by mutations of isoamylase-type starch-debranching enzymes (DBE), although how these proteins affect glucan polymer assembly is not understood. Various allelic mutations in the maize (Zea mays) gene sugary1 (su1), which codes for an isoamylase-type DBE, condition dis...

journal_title：Plant physiology

authors： Dinges JR,Colleoni C,Myers AM,James MG

更新日期：2001-03-01 00:00:00

abstract：:With the aim to specifically study the molecular mechanisms behind photoinhibition of photosystem I, stacked spinach (Spinacia oleracea) thylakoids were irradiated at 4 degrees C with far-red light (>715 nm) exciting photosystem I, but not photosystem II. Selective excitation of photosystem I by far-red light for 130 ...

journal_title：Plant physiology

authors： Tjus SE,Scheller HV,Andersson B,Møller BL

更新日期：2001-04-01 00:00:00

abstract：:The Bamboo mosaic virus (BaMV) is a positive-sense, single-stranded RNA virus. Previously, we identified that the chloroplast phosphoglycerate kinase (chl-PGK) from Nicotiana benthamiana is one of the viral RNA binding proteins involved in the BaMV infection cycle. Because chl-PGK is transported to the chloroplast, we...

journal_title：Plant physiology

authors： Cheng SF,Huang YP,Chen LH,Hsu YH,Tsai CH

更新日期：2013-12-01 00:00:00

abstract：:ZRP4, a 1.4-kb mRNA that preferentially accumulates in roots of young Zea mays L. plants, was identified by isolation of the corresponding cDNA clone. Genomic Southern analysis indicates that the zrp4 gene is represented once in the corn genome. The deduced ZRP4 polypeptide of 39,558 D is rich in leucine, serine, and ...

journal_title：Plant physiology

authors： Held BM,Wang H,John I,Wurtele ES,Colbert JT

更新日期：1993-07-01 00:00:00

abstract：:The kinetic properties of the adenosine 5[prime]-diphosphate/adenosine 5[prime]-triphosphate (ADP/ATP) translocator from pea (Pisum sativum L.) root plastids were determined by silicone oil filtering centrifugation and compared with those of spinach (Spinacia oleracea L.) chloroplasts and pea leaf mitochondria. In add...

journal_title：Plant physiology

authors： Schunemann D,Borchert S,Flugge UI,Heldt HW

更新日期：1993-09-01 00:00:00

abstract：:The appearance and disappearance of NADH:nitrate reductase (NR) in the leaves of corn (Zea mays L. W64A x W182E) were studied using activity assays, an enzyme-linked immunosorbent assay (ELISA) and western blotting. N-starved, etiolated corn plants were treated with nutrients containing either 35 millimolar NH(4)-nitr...

journal_title：Plant physiology

authors： Remmler JL,Campbell WH

更新日期：1986-02-01 00:00:00

abstract：:Regulation of photosynthetic gene expression by plastid-encoded RNA polymerase (PEP) is essential for chloroplast development. The activity of PEP largely relies on at least 12 PEP-associated proteins (PAPs) encoded in the nuclear genome of plant cells. A recent model proposed that these PAPs regulate the establishmen...

journal_title：Plant physiology

authors： Chang SH,Lee S,Um TY,Kim JK,Do Choi Y,Jang G

更新日期：2017-05-01 00:00:00

abstract：:Nitrate reductase (NR) is the first enzyme in nitrate assimilation, a critical process for plant survival. The regulation of NR gene expression is complex, involving both internal and external factors. Of these, nitrate induction of NR gene expression has been studied most extensively and is well conserved among bacte...

journal_title：Plant physiology

authors： Lin Y,Hwang CF,Brown JB,Cheng CL

更新日期：1994-10-01 00:00:00

abstract：:The initial rate of Ca2+ movement across the inner-envelope membrane of pea (Pisum sativum L.) chloroplasts was directly measured by stopped-flow spectrofluorometry using membrane vesicles loaded with the Ca2+-sensitive fluorophore fura-2. Calibration of fura-2 fluorescence was achieved by combining a ratiometric meth...

journal_title：Plant physiology

authors： Roh MH,Shingles R,Cleveland MJ,McCarty RE

更新日期：1998-12-01 00:00:00

abstract：:Enzymes dissociated from corn (hybrid B73 x Mo17) seedling cell walls by solutions of high ionic strength possess the capacity to degrade Avena caryopsis glucan. Inhibitor studies disclosed that both endo- and exoenzyme activities were involved and that the reaction sequence paralleled the autolytic solubilization of ...

journal_title：Plant physiology

authors： Huber DJ,Nevins DJ

更新日期：1980-05-01 00:00:00

abstract：:White light (25 watts per square meter) induced an increase in plasma membrane K(+)-channel activity and a 30- to 70-millivolt transient membrane depolarization (completed in 2-3 minutes) in Arabidopsis thaliana leaf mesophyll cells. Transport characteristics of three types of ion channels in the plasma membrane were ...

journal_title：Plant physiology

authors： Spalding EP,Slayman CL,Goldsmith MH,Gradmann D,Bertl A

更新日期：1992-05-01 00:00:00

abstract：:Carotenoid turnover was investigated in mature leaves of Arabidopsis (Arabidopsis thaliana) by 14CO2 pulse-chase labeling under control-light (CL; 130 micromol photons m(-2) s(-1)) and high-light (HL; 1,000 micromol photons m(-2) s(-1)) conditions. Following a 30-min 14CO2 administration, photosynthetically fixed 14C ...

journal_title：Plant physiology

authors： Beisel KG,Jahnke S,Hofmann D,Köppchen S,Schurr U,Matsubara S

更新日期：2010-04-01 00:00:00

abstract：:We have described the modulation of four auxin-regulated genes during the growth cycle of suspension-cultured tobacco (Nicotiana tabacum [L.] var White Burley) cells. The genes were transiently expressed 2 to 8 h after transfer of stationary phase cells to fresh medium, during the transition from the quiescent phase o...

journal_title：Plant physiology

authors： Boot K,Van Der Zaal BJ,Velterop J,Quint A,Mennes AM,Hooykaas P,Libbenga KR

更新日期：1993-06-01 00:00:00

abstract：:Plants effectively defend themselves against biotic and abiotic stresses by synthesizing diverse secondary metabolites, including health-protective flavonoids. These display incredible chemical diversity and ubiquitous occurrence and confer impeccable biological and agricultural applications. Chalcone synthase (CHS), ...

journal_title：Plant physiology

authors： Pandith SA,Dhar N,Rana S,Bhat WW,Kushwaha M,Gupta AP,Shah MA,Vishwakarma R,Lattoo SK

更新日期：2016-08-01 00:00:00

abstract：:After cold treatment of seedlings of winter wheat (Triticum aestivum L.), levels of hydrogen peroxide in the leaves were measured. The concentration of hydrogen peroxide increased to about three times the control level within a few minutes, and returned to the normal level in 15 to 20 minutes. The elevated level of hy...

journal_title：Plant physiology

authors： Okuda T,Matsuda Y,Yamanaka A,Sagisaka S

更新日期：1991-11-01 00:00:00

abstract：:A Sclerotinia enzyme preparation with predominant exo-beta-(1-->3)-glucanase activity has the capacity to mediate the formation of tetrasaccharide from 3-O-beta-cellobiosyl-d-glucose or cellotriose, and a pentasaccharide from 3-O-beta-cellotriosyl-d-glucose or cellotetraose. Transglucosylation is not observed when the...

journal_title：Plant physiology

authors： Yamamoto R,Nevins DJ

更新日期：1979-08-01 00:00:00

abstract：:Histone H2B monoubiquitination (H2Bub1) plays critical roles in regulating growth and development as well as stress responses in Arabidopsis (Arabidopsis thaliana). In this study, we used wild-type and HUB1 and HUB2 loss-of-function Arabidopsis plants to elucidate the mechanisms involved in the regulation of the plant...

journal_title：Plant physiology

authors： Zhao J,Chen Q,Zhou S,Sun Y,Li X,Li Y

更新日期：2020-01-01 00:00:00

abstract：:A gene (EGL1) encoding an endo-beta-1,4-D-glucanase (EGase, EC 3.2.1.4) of pea (Pisum sativum) has been cloned and characterized. EGL1 encodes a 486-amino acid polypeptide, including a 24-mer putative signal peptide. The mature protein has a calculated molecular mass of 51.3 kD and an isoelectric point of 9.1. This pe...

journal_title：Plant physiology

authors： Wu SC,Blumer JM,Darvill AG,Albersheim P

更新日期：1996-01-01 00:00:00

abstract：:Stomatal movements depend on an osmoregulation process in which swelling or shrinking of the guard cells opens or closes the stomatal pore. Ions and water fluxes are an essential aspect of guard cell osmoregulation. Thus far, studies of these fluxes have focused on the guard cell plasma membrane. Guard cells, however,...

journal_title：Plant physiology

authors： Amodeo G,Escobar A,Zeiger E

更新日期：1994-07-01 00:00:00

abstract：:A method for the preparation of developmentally staged microspores and young pollen from maize (Zea mays) has been devised. The preparations are of sufficient purity and quantity for biochemical analysis, including the analysis of steady-state protein and RNA populations associated with each stage. A major transition ...

journal_title：Plant physiology

authors： Bedinger PA,Edgerton MD

更新日期：1990-02-01 00:00:00

abstract：:Ubiquitination and deubiquitination are reversible processes that play crucial roles in regulating organ size in plants. However, information linking deubiquitination and seed size in rice (Oryza sativa) is limited. Here, we characterized a dominant large-grain mutant, large grain1-D (lg1-D), with a 30.8% increase in ...

journal_title：Plant physiology

authors： Shi C,Ren Y,Liu L,Wang F,Zhang H,Tian P,Pan T,Wang Y,Jing R,Liu T,Wu F,Lin Q,Lei C,Zhang X,Zhu S,Guo X,Wang J,Zhao Z,Wang J,Zhai H,Cheng Z,Wan J

更新日期：2019-05-01 00:00:00

abstract：:The endoplasmic reticulum (ER) stress response is a signal transduction pathway activated by the perturbation of normal ER metabolism. We used the maize (Zea mays) floury-2 (fl2) mutant and soybean (Glycine max) suspension cultures treated with tunicamycin (Tm) to investigate the ER stress response as it relates to ph...

journal_title：Plant physiology

authors： Shank KJ,Su P,Brglez I,Boss WF,Dewey RE,Boston RS

更新日期：2001-05-01 00:00:00

abstract：:d-Galactose has been shown to have toxic and growth inhibitory effects in plants. When applied at levels of 50 millimolar to tobacco (Nicotiana tabacum L. cv Xanthi) leaf discs galactose caused a rapid increase in ethylene production during the first 2 days of incubation, followed by a rapid return to the basal level ...

journal_title：Plant physiology

authors： Philosoph-Hadas S,Aharoni N

更新日期：1987-01-01 00:00:00

abstract：:Amino acids and amino acid analogs have been used in numerous genetic screens to isolate mutants deficient in amino acid biosynthetic pathways or in the regulation of amino acid metabolism. Several of these mutants exhibit relaxed feedback control of branched amino acid biosynthetic pathways and are thus resistant to ...

journal_title：Plant physiology

authors： Voll LM,Allaire EE,Fiene G,Weber AP

更新日期：2004-10-01 00:00:00