Abstract：
:We measured the levels of radioactive caesium (RACs; ¹³⁴Cs and ¹³⁷Cs) in plants and soil in a grassland, 32 km northwest of the Fukushima 1 Nuclear Power Plant, from June 2011 to October 2012. In 2011, the highest RACs levels (¹³⁴Cs + ¹³⁷Cs) in plants and in the 0-5 cm soil layer were approximately 80 kBq per kg dry weight (DW). Forage grasses and clovers in this grassland showed similar RACs levels. On a DW basis, the levels of RACs in these plants tended to increase with increasing biomass over both years, but the absolute levels decreased in 2012. The RACs levels in the soil decreased sharply with soil depth; the RACs level in the 5-10 cm soil layer was only 3 % of that in the 0-5 cm layer. The transfer factor (ratio of radioactivity in plant parts on DW basis to that in the 0-10 cm soil layer) was 0.5 and 1.0 for the aboveground and belowground plant parts, respectively, in 2011, and these values decreased by approximately 50 % in 2012. We discuss the possible mechanisms underlying these trends, and strategies to decrease the level of RACs in plants to the permissible level for forage.
journal_name
J Plant Resjournal_title
Journal of plant researchauthors
Terashima I,Shiyomi M,Fukuda Hdoi
10.1007/s10265-013-0608-9subject
Has Abstractpub_date
2014-01-01 00:00:00pages
43-50issue
1eissn
0918-9440issn
1618-0860journal_volume
127pub_type
杂志文章abstract：:We evaluated the degree of selfing and inbreeding depression at the seed and seedling stages of a threatened tropical canopy tree, Neobalanocarpus heimii, using microsatellite markers. Selection resulted in an overall decrease in the level of surviving selfed progeny from seeds to established seedlings, indicating inb...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-005-0245-z
更新日期：2005-12-01 00:00:00
abstract：:Plants generate various tissues and organs via a strictly regulated developmental program. The plant vasculature is a complex tissue system consisting of xylem and phloem tissues with a layer of cambial cells in between. Multiple regulatory steps are involved in vascular development. Although molecular and genetic stu...
journal_title：Journal of plant research
pub_type： 杂志文章,评审
doi：10.1007/s10265-017-0998-1
更新日期：2018-01-01 00:00:00
abstract：:In phylogenetic trees generated from partial trnL(UAA) intron sequences, the hornworts (represented by nine species from the genera Anthoceros, Dendroceros, Megaceros, Notothylas and Phaeoceros) are resolved as a monophyletic group and are separated from the clades of mosses, liverworts and tracheophytes. A secondary ...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-003-0118-2
更新日期：2003-10-01 00:00:00
abstract：:Calcium oxalate (CaOx) crystals in higher plants occur in five forms: raphides, styloids, prisms, druses, and crystal sand. CaOx crystals are formed in almost all tissues in intravacuolar crystal chambers. However, the mechanism of crystallization and the role of CaOx crystals have not been clearly explained. The aim ...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-016-0812-5
更新日期：2016-07-01 00:00:00
abstract：:Green leaf volatiles (GLVs) play a vital role in enhancing herbivore-associated defense responses, but the mechanism by which they precisely regulate such responses is not well understood. (Z)-3-Hexenol (z3HOL), an important component of GLVs, effectively activates the defense of tea plants (Camellia sinensis) against...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-019-01094-x
更新日期：2019-03-01 00:00:00
abstract：:Reduction of pollen flow can affect plant abundance and population viability and cause selection on plant mating system and floral traits. Little is known on the effect of this phenomenon in species naturally restricted to small and isolated habitats, that may have developed strategies to cope with long-term isolation...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-013-0588-9
更新日期：2014-01-01 00:00:00
abstract：:Drought is an important environmental factor that can severely affect plant growth and reproduction. Although many genes related to drought tolerance have been studied in economically important crops, very few genes have been functionally identified in Malus sieversii. In this study, we isolated a new gene based on th...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-019-01133-7
更新日期：2019-11-01 00:00:00
abstract：:Chloroplasts change their intracellular positions in response to their light environment. Under darkness, chloroplasts assume special positions that are different from those under light conditions. Here, we analyzed chloroplast dark positioning using Adiantum capillus-veneris gametophyte cells. When chloroplasts were ...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-011-0433-y
更新日期：2012-03-01 00:00:00
abstract：:Phospholipase D (PLD) and its product phosphatidic acid (PA) are emerging as essential regulators of cytoskeleton organization in plants. However, the underlying molecular mechanisms of PA-mediated microtubule reorganization in plants remain largely unknown. In this study, we used pharmacological and genetic approache...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-016-0870-8
更新日期：2017-01-01 00:00:00
abstract：:We determined the complete nucleotide sequence of the plastid genome of the unicellular marine red alga Porphyridium purpureum strain NIES 2140, belonging to the unsequenced class Porphyridiophyceae. The genome is a circular DNA composed of 217,694 bp with the GC content of 30.3%. Twenty-nine of the 224 protein-coding...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-014-0627-1
更新日期：2014-05-01 00:00:00
abstract：:Protocols for DNA extraction from plants generally involve physical and chemical destruction of tissues. Use of these conventional methods precludes preservation of morphological information from herbarium specimens, especially for small plants with few leaves, and reduces the voucher value of specimens. Here, we deve...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-019-01152-4
更新日期：2020-01-01 00:00:00
abstract：:Plant triterpenoids are a diverse group of secondary metabolites with wide distribution, high chemical diversity and interesting pharmacological and antimicrobial properties. The first step in the biosynthesis of all triterpenoids is the cyclization of the 2,3-oxidosqualene precursor, catalyzed by oxidosqualene cyclas...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-016-0797-0
更新日期：2016-05-01 00:00:00
abstract：:We present a comparative study of the floral structure and development of Nartheciaceae, a small dioscorealean family consisting of five genera (Aletris, Lophiola, Metanarthecium, Narthecium, and Nietneria). A noticeable diversity existed in nine floral characters. Analyses of their respective character states in the ...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-018-1026-9
更新日期：2018-05-01 00:00:00
abstract：:Garden asparagus (Asparagus officinalis L.) is a dioecious species whose male and female flowers are found in separate unisexual individuals. A region called the M-locus, located on a pair of homomorphic sex chromosomes, controls sexual dimorphism in asparagus. To date, no sex determining gene has been isolated from a...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-015-0735-6
更新日期：2015-09-01 00:00:00
abstract：:When carbohydrates accumulate in leaves, photosynthesis is repressed. Limited nitrogen nutrition is thought to enhance this repressing effect. However, the interaction between carbohydrate and nitrogen limitation in leaf photosynthesis has not been examined intensively. In this study, we grew Phaseolus vulgaris L. pla...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-009-0279-8
更新日期：2010-05-01 00:00:00
abstract：:Clematis stans is dioecious semi-arboreal, with pale purple-blue, nodding, tubulous flowers in a paniculate inflorescence. Both male and female flowers produce nectar from the base of the calyx tube during a flowering period of 3 or 4 days, and are pollinated by two bumblebee species, Bombus diversus and B. honshuensi...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-002-0046-6
更新日期：2002-10-01 00:00:00
abstract：:Food storage tissue in the seeds of gymnosperms is female gametophyte (megagametophyte) that develops before fertilization, whereas, in seeds of angiosperms, food is stored as endosperm initiated by double fertilization. The megagametophyte is haploid, and endosperm is usually triploid, at least initially. Despite dif...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-008-0161-0
更新日期：2008-07-01 00:00:00
abstract：:Regulation of defense in plants is a complex process mediated by various signaling pathways. Promoter analysis of defense-related genes is useful to understand these signaling pathways involved in regulation. To this end, the regulation of the polygalacturonase-inhibiting protein encoding gene from Vitis vinifera L. (...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-012-0515-5
更新日期：2013-03-01 00:00:00
abstract：:Leaf size and shape define the photosynthetic capability of a plant and have a significant impact on important agronomic traits, such as yield, quality, disease resistance and stress responses. Cultivated varieties of many plant species show remarkable variations in leaf morphology. Such variation usually exhibits a c...
journal_title：Journal of plant research
pub_type： 杂志文章,评审
doi：10.1007/s10265-009-0267-z
更新日期：2010-01-01 00:00:00
abstract：:The effects of sugars on root growth and on development of adventitious roots were analyzed in Arabidopsis thaliana. Seeds were sown on agar plates containing 0.0-5.0% sugars and placed vertically in darkness (DD) or under long day (LD, 16 h:8 h) conditions, so that the seedlings were constantly attached to the agar m...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-002-0074-2
更新日期：2003-04-01 00:00:00
abstract：:Drought is believed to cause many metabolic changes which affect plant growth and development. However, it might be mitigated by various inorganic substances, such as nitrogen. Thus, the study was carried out to investigate the effect of foliar-applied urea with or without urease inhibitor N-(n-butyl) thiophosphoric t...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-017-0933-5
更新日期：2017-05-01 00:00:00
abstract：:Plants have developed certain adaptive responses to environmental stresses that cause adverse effects on growth. To identify genes involved in the adaptive mechanisms, we constructed a large population of transgenic Arabidopsis expressing rice full-length cDNAs, and performed gain-of-function screening under high-sali...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-012-0501-y
更新日期：2013-01-01 00:00:00
abstract：:The daily total photosynthetically active radiation (400-700 nm, PAR) and near-infrared radiation (700-1000 nm, NIR) were measured in the understory beneath the canopy (PARt and NIRt) and above the canopy (PARi and NIRi) of a Japanese cool-temperate deciduous broad-leaved forest during the snow-free period (May to Nov...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-010-0346-1
更新日期：2011-01-01 00:00:00
abstract：:The thermogenesis and flowering biology of Colocasia gigantea (Blume) Hook. f. were studied from December 2005 to February 2006 on Espiritu Santo, Vanuatu (South Pacific). Endogenous thermogenesis was measured in two ways: (1) continuously over 5-day periods, and (2) over 3 h during maximum heating. The study showed t...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-007-0129-5
更新日期：2008-01-01 00:00:00
abstract：:Neotropical woody bamboos range from northern Mexico to southern Argentina and Chile. The most interesting aspect of bamboo biology is their flowering habit. The species that are the most intriguing are those that manifest a cyclic pattern of gregarious flowering after long vegetative periods. The flowering cycle has ...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-013-0593-z
更新日期：2014-03-01 00:00:00
abstract：:Although genetically modified (GM) soybean has never been cultivated commercially in Japan, it is essential to set up the isolation distance required to prevent out-crossing between GM and conventional soybean in preparation for any future possibility of pollen transfer. The airborne soybean pollen was sampled using s...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-010-0357-y
更新日期：2011-01-01 00:00:00
abstract：:Vascular plants have a network of vasculature in their leaves, which supplies water and nutrients and exports photoassimilates to other tissues. The vascular network is patterned during the development of leaf primordia through the induction of provascular differentiation by auxin. Arabidopsis thaliana Dof5.8, encodin...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-015-0712-0
更新日期：2015-07-01 00:00:00
abstract：:Structures and levels of anthocyanin-related compounds were analyzed during the development of marginal picotee petals in white-center and white-marginal cultivars of Petunia hybrida. In the white site of a white-center cultivar, higher concentrations of quercetin derivatives possessing 7-O-glucoside and/or 3'-O-gluco...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-007-0086-z
更新日期：2007-07-01 00:00:00
abstract：:A new species Camellia nanningensis was described on the basis of well-preserved mummified wood from the upper Oligocene Yongning Formation of Nanning Basin in Guangxi Province, South China. This represents the most ancient fossil wood assigned to Camellia, and the earliest fossil record of the family Theaceae in Chin...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-016-0846-8
更新日期：2016-09-01 00:00:00
abstract：:Temperature affects a cascade of ecological processes and functions of forests. With future higher global temperatures being inevitable it is critical to understand and predict how forest ecosystems and tree species will respond. This paper reviews experimental warming studies in boreal and temperate forests or tree s...
journal_title：Journal of plant research
pub_type： 杂志文章,评审
doi：10.1007/s10265-013-0565-3
更新日期：2013-07-01 00:00:00
