Oriented movement of statoliths studied in a reduced gravitational field during parabolic flights of rockets.

abstract：MAIN CONCLUSION:The Arabidopsis transcription factor NAC103 is up-regulated and its encoding protein is stabilized by ABA treatment, which positively regulates several ABA-responsive downstream genes during seed germination and seedlings growth. The Arabidopsis transcription factor NAC103 was previously found to be inv...

journal_title：Planta

authors： Sun L,Liu LP,Wang YZ,Yang L,Wang MJ,Liu JX

更新日期：2020-10-31 00:00:00

abstract：:In the ovary of Aptenia cordifolia and Platythyra haeckeliana placentary papillae produce a slime containing polysaccharides and proteins. These papillae show two types of conspicuous vacuoles enclosed by rough ER cisternae and complexes of concentrically arranged rough ER. The enclosed vacuoles probably play an impor...

journal_title：Planta

authors： Kristen U

更新日期：1977-01-01 00:00:00

abstract：:The ultrastructure of root cells of the germinating corn embryo has been studied during the first 72 hours of soaking. The most spectacular ultrastructural modifications occur in the nucleus. In the dry seed, the chromatin is heavily condensed and complete dispersion occurs during the first 8 hr of germination. The nu...

journal_title：Planta

authors： Deltour R,Bronchart R

更新日期：1971-09-01 00:00:00

abstract：MAIN CONCLUSION:Overexpression ofPeVQ28in Arabidopsis regulated the expression of salt/ABA-responsive genes and indicated thatPeVQ28may affect the ABA synthesis induced by stress in plants by regulating salt tolerance. Plant-specific VQ proteins, which contain a conserved short FxxhVQxhTG amino acid sequence motif, pla...

journal_title：Planta

authors： Cheng X,Wang Y,Xiong R,Gao Y,Yan H,Xiang Y

更新日期：2020-04-21 00:00:00

abstract：MAIN CONCLUSION:This study showed that an R2R3-MYB transcription factor, AgMYB2, functions in anthocyanin biosynthesis and accumulation in purple celery. Anthocyanins are involved in tissue coloration and stress response in plants. Foods containing high anthocyanin content are also beneficial to human health. Purple ce...

journal_title：Planta

authors： Feng K,Liu JX,Duan AQ,Li T,Yang QQ,Xu ZS,Xiong AS

更新日期：2018-11-01 00:00:00

abstract：:Grapevine bud fruitfulness is determined by the differentiation of uncommitted meristem (UCM) into either tendril or inflorescence. Since tendril and inflorescence differentiation have long been considered sequential steps in inflorescence development, factors that control the progression of floral meristem developmen...

journal_title：Planta

authors： Crane O,Halaly T,Pang X,Lavee S,Perl A,Vankova R,Or E

更新日期：2012-01-01 00:00:00

abstract：MAIN CONCLUSION:Ethylene receptor is crucial for PCD and aerenchyma formation in Typha angustifolia leaves. Not only does it receive and deliver the ethylene signal, but it probably can determine the cell fate during aerenchyma morphogenesis, which is due to the receptor expression quantity. Aquatic plant oxygen delive...

journal_title：Planta

authors： Liu H,Hao N,Jia Y,Liu X,Ni X,Wang M,Liu W

更新日期：2019-07-01 00:00:00

abstract：:Galactose was the major non-cellulosic neutral sugar present in the cell walls of 'Mitchell' petunia (Petunia axillaris x P. axillaris x P. hybrida) flower petals. Over the 24 h period associated with flower opening, there was a doubling of the galactose content of polymers strongly associated with cellulose and insol...

journal_title：Planta

authors： O'Donoghue EM,Somerfield SD,Watson LM,Brummell DA,Hunter DA

更新日期：2009-02-01 00:00:00

abstract：:Chloroplasts are the endosymbiotic descendants of cyanobacterium-like prokaryotes. Present genomes of plant and green algae chloroplasts (plastomes) contain ~100 genes mainly encoding for their transcription-/translation-machinery, subunits of the thylakoid membrane complexes (photosystems II and I, cytochrome b ...

journal_title：Planta

authors： Lyska D,Meierhoff K,Westhoff P

更新日期：2013-02-01 00:00:00

abstract：:Acid phosphatase has been localized by cytochemical techniques in aleurone layers of dry barley (Hordeum vulgare L.) grains, in imbibed half-grains and in isolated layers treated with and without gibberellic acid (GA3). A major fraction of the enzyme activity is located in the cell walls. During imbibition and incubat...

journal_title：Planta

authors： Ashford AE,Jacobsen JV

更新日期：1974-01-01 00:00:00

abstract：:Abscisic acid (ABA) caused a 7-8-fold increase in volume flow in excised bean root systems and this was coupled with an increase in (42)K, (36)Cl and (24)Na flux into the xylem. The transport of (42)K and (36)Cl increased by a factor larger than the stimulation of volume flow, resulting in an increase in the concentra...

journal_title：Planta

authors： Karmoker JL,Van Steveninck RF

更新日期：1978-01-01 00:00:00

abstract：:The enzymes gibberellin (GA) 20-oxidase and 3-oxidase are major sites of regulation in GA biosynthesis. We have characterised one member of each of the gene families encoding these enzymes that are highly expressed in elongating stems and in developing and germinating grains of wheat and are therefore likely to have p...

journal_title：Planta

authors： Appleford NE,Evans DJ,Lenton JR,Gaskin P,Croker SJ,Devos KM,Phillips AL,Hedden P

更新日期：2006-02-01 00:00:00

abstract：:Arginase (EC 3.5.3.1) localization was studied in soybean (Glycine max L.) seedling cotyledons. Subcellular fractionation in a discontinuous Percoll gradient showed that arginase was localized in the mitochondrion. Arginine (Arg) uptake by mitochondria was demonstrated by co-sedimentation of [3H]Arg-derived label and ...

journal_title：Planta

authors： Goldraij A,Polacco JC

更新日期：2000-03-01 00:00:00

abstract：:Immature zygotic embryos of sunflower (Helianthus annuus L.) produce somatic embryos when cultured on medium supplemented with a cytokinin as the sole source of exogenous growth regulators. The timing of the induction phase and subsequent morphogenic events have been well characterized in previous work. We address her...

journal_title：Planta

authors： Thomas C,Bronner R,Molinier J,Prinsen E,van Onckelen H,Hahne G

更新日期：2002-08-01 00:00:00

abstract：:Although Arabidopsis is an important system for studying root physiology, the localized growth patterns of its roots have not been well defined, particularly during tropic responses. In order to characterize growth rate profiles along the apex of primary roots of Arabidopsis thaliana (L.) Heynh (ecotype Columbia) we a...

journal_title：Planta

authors： Mullen JL,Ishikawa H,Evans ML

更新日期：1998-11-01 00:00:00

abstract：:An autopolyploid that contains more than two sets of the same chromosomes causes apparent alterations in morphology, development, physiology and gene expression compared to diploid. However, the mechanisms for these changes remain largely unknown. In the present study, cytological observations of mature embryos and gr...

journal_title：Planta

authors： Li X,Yu E,Fan C,Zhang C,Fu T,Zhou Y

更新日期：2012-08-01 00:00:00

abstract：:Arabidopsis thaliana and Boechera belong to different tribes of the Brassicaceae and last shared a common ancestor 13-35 million years ago. A. thaliana reproduces sexually but some Boechera accessions reproduce by apomixis (asexual reproduction by seed). The two species are reproductively isolated, preventing introgre...

journal_title：Planta

authors： Lohe AR,Perotti E

更新日期：2012-08-01 00:00:00

abstract：:During sunflower (Helianthus annuus L.) seed formation there was an active period of lipid biosynthesis between 12 and 28 days after flowering (DAF). The maximum in-vitro acyl-acyl carrier protein (ACP) thioesterase activities (EC 3.1.2.14) were found at 15 DAF, preceding the largest accumulation of lipid in the seed....

journal_title：Planta

authors： Martínez-Force E,Cantisán S,Serrano-Vega MJ,Garcés R

更新日期：2000-10-01 00:00:00

abstract：:Oxygen and CO2 exchange were measured concurrently in leaves of shade-grownAlocasia macrorrhiza (L.) G. Don during lightflecks consisting of short periods of high photon flux density (PFD) superimposed on a low-PFD background illumination. Oxygen exchange was measured with a zirconium-oxide ceramic cell in an atmosphe...

journal_title：Planta

authors： Kirschbaum MU,Pearcy RW

更新日期：1988-12-01 00:00:00

abstract：:In plants of Silene coeli-rosa, induced to flower by 7 LD, synchronisation of cell division in 20 per cent or more of the cells in the shoot apical dome was found on the 8th and 9th days after the beginning of induction, during the plastochron before sepal initiation. Synchronisation was inferred from the changes in t...

journal_title：Planta

authors： Francis D,Lyndon RF

更新日期：1979-01-01 00:00:00

abstract：:Ozone (O3), a major photochemical oxidant, causes leaf injury in plants. Plants synthesize salicylic acid (SA), which is reported to greatly affect O3 sensitivity. However, the mechanism of SA biosynthesis under O3 exposure remains unclear. Plants synthesize SA either by a pathway involving phenylalanine as a substrat...

journal_title：Planta

authors： Ogawa D,Nakajima N,Tamaoki M,Aono M,Kubo A,Kamada H,Saji H

更新日期：2007-10-01 00:00:00

abstract：MAIN CONCLUSION:Endogenous auxin determines the pattern of adventitious shoot formation. Auxin produced in the dominant shoot is transported to the internodal segment and suppresses growth of other shoots. Adventitious shoot formation is required for the propagation of economically important crops and for the regenerat...

journal_title：Planta

authors： Koike I,Watanabe S,Okazaki K,Hayashi KI,Kasahara H,Shimomura K,Umehara M

更新日期：2020-03-05 00:00:00

abstract：:A central question in biology is to understand how gene expression is precisely regulated to give rise to a variety of forms during the process of development. Epigenetic effects such as DNA methylation or histone modification have been increasingly shown to play a critical role in regulation of genome function. GCN5 ...

journal_title：Planta

authors： Cohen R,Schocken J,Kaldis A,Vlachonasios KE,Hark AT,McCain ER

更新日期：2009-11-01 00:00:00

abstract：MAIN CONCLUSION:Phloem production and structural development were interlinked with seasonal variation in the primary and secondary metabolites of phloem. Novel microtechniques provided new perspectives on understanding phloem structure and chemistry. To gain new insights into phloem formation in Norway spruce (Picea ab...

journal_title：Planta

authors： Jyske TM,Suuronen JP,Pranovich AV,Laakso T,Watanabe U,Kuroda K,Abe H

更新日期：2015-09-01 00:00:00

abstract：:Phloem exudates from Cucurbita, Cucumis, and Citrullus were gelled by oxidative formation of disulphide bridges between the phloem filaments. Gellation could be inhibited by dithiothreitol or iodoacetamide and did not require the presence of the phloem lectin. Each exudate contained a dimeric lectin of similar relativ...

journal_title：Planta

authors： Read SM,Northcote DH

更新日期：1983-06-01 00:00:00

abstract：:Leaves of plants with Crassulacean acid metabolism (CAM) were analyzed for variation in the content of polyamines in connection with the metabolism of malic acid in the dark and in the light, and with the induction of full-CAM activity. Under conditions (long days) resulting in extremely low CAM activity, young leaves...

journal_title：Planta

authors： Morel C,Villanueva VR,Queiroz O

更新日期：1980-10-01 00:00:00

abstract：:Experiments have been carried out to determine the basis for the dependence of chloroplast pigment synthesis on protein synthesis in dark-grown cells of Euglena gracilis greening in the light. The complete inhibition of chlorophyll synthesis brought about by actidione (10 μg/ml) when added half way through the greenin...

journal_title：Planta

authors： Kirk JT

更新日期：1967-06-01 00:00:00

abstract：:A fraction of highly purified prolamellar bodies was isolated from etioplasts of wheat (Triticum aestivum L. cv. Starke II, Weibull), as previously described by Ryberg and Sundqvist (1982, Physiol. Plant., 56, 125-132). Studies on the protein composition revealed that only one major polypeptide of an apparent molecula...

journal_title：Planta

authors： Dehesh K,Ryberg M

更新日期：1985-06-01 00:00:00

abstract：:Fe uptake in dicotyledonous plants is mediated by a root plasma membrane-bound ferric reductase that reduces extracellular Fe(III)-chelates, releasing Fe(2+) ions, which are then absorbed via a metal ion transporter. We previously showed that Fe deficiency induces an increased capacity to absorb Fe and other micronutr...

journal_title：Planta

authors： Cohen CK,Garvin DF,Kochian LV

更新日期：2004-03-01 00:00:00

abstract：:In Arabidopsis thaliana (L.) Heynh., AtPhr2 and AtNsr1 encode proteins with MYB-like and alpha-helical domains. They resemble CrPsr1, a nuclear-localized MYB protein that is critical for acclimation to phosphorous (P) starvation in the alga Chlamydomonas reinhardtii. Reverse transcription-polymerase chain reaction ana...

journal_title：Planta

authors： Todd CD,Zeng P,Huete AM,Hoyos ME,Polacco JC

更新日期：2004-10-01 00:00:00