Abstract：
:Bracts that lacked chlorophyll were compared with rosette leaves on the Chinese glasshouse plant Rheum alexandrae Batalin. The structures were analyzed anatomically and with photospectrometry. Histological features were significantly different between the bracts and the rosette leaves. Epidermal pavement cells and palisade cells were larger in the bracts than in the rosette leaves, but the ratio of the intercellular spaces to the cells in the palisade layer was the same in the two structures. Absorption spectrum analyses of the half-translucent bracts showed that, despite their thinner structure, they absorbed ultraviolet (UV) radiation more efficiently than did the green rosette leaves. The characteristics of the R. alexandrae bracts were different from those of the Himalayan glasshouse plant Rheum nobile. These results suggest that R. alexandrae evolved bracts as an adaptive strategy to protect the inflorescence from UV radiation.
journal_name
J Plant Resjournal_title
Journal of plant researchauthors
Tsukaya Hdoi
10.1007/s102650200009subject
Has Abstractpub_date
2002-02-01 00:00:00pages
59-63issue
1117eissn
0918-9440issn
1618-0860journal_volume
115pub_type
杂志文章abstract：:Microtubules are highly dynamic structures that control the spatiotemporal pattern of cell growth and division. Microtubule dynamics are regulated by reversible protein phosphorylation involving both protein kinases and phosphatases. Never in mitosis A (NIMA)-related kinases (NEKs) are a family of serine/threonine kin...
journal_title：Journal of plant research
pub_type： 杂志文章,评审
doi：10.1007/s10265-015-0751-6
更新日期：2015-11-01 00:00:00
abstract：:Climate change scenarios predict an increase in air temperature and precipitation in northern temperate regions of Europe by the end of the century. Increasing atmospheric humidity inevitably resulting from more frequent rainfall events reduces water flux through vegetation, influencing plants' structure and functioni...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-019-01106-w
更新日期：2019-05-01 00:00:00
abstract：:Sex allocation of a cosexual wind-pollinated species, Quercus dentata (Fagaceae), was analyzed using biomass, carbon, nitrogen and phosphorus as currencies based on data accumulated for 61 individuals from 1997-2004. Strongly female-biased sex allocation was indicated when measured in terms of biomass and carbon, but ...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-005-0206-6
更新日期：2005-06-01 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：:Despite decades of research, ecologists continue to debate how spatial patterns of species richness arise across elevational gradients on the Earth. The equivocal results of these studies could emanate from variations in study design, sampling effort and data analysis. In this study, we demonstrate that the richness p...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-017-0946-0
更新日期：2017-09-01 00:00:00
abstract：:Plant clonality may greatly reduce effective population size and influence management strategies of rare and endangered species. We examined genetic diversity and the extent of clonality in four populations of the monotypic herbaceous perennial Japonolirion osense, which is one of the most rare flowering plants in Jap...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-003-0121-7
更新日期：2004-02-01 00:00:00
abstract：:Light- and nitrogen-use change was examined along productivity gradients in natural grasslands at Laelatu, western Estonia, both at community level and in most abundant species. Aboveground biomass (M) ranged from 341 to 503 g m(-2) in wet (W) and from 248 to 682 g m(-2) in dry (D) community. Aboveground leaf area rat...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-014-0629-z
更新日期：2014-05-01 00:00:00
abstract：:We assessed leaf-area density (LAD; m(2) m(-3)) within the crown of Aucuba japonica (Cornaceae) growing under different light regimes and analyzed the components of crown architecture that most influenced variation in LAD. At a whole-crown level, extension-unit (EU) density (EUs/m(3)) had the greatest impact on LAD. T...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-005-0222-6
更新日期：2005-10-01 00:00:00
abstract：:Experiments were conducted to study the dynamics of nitrous oxide (N₂O) emission from wheat varieties viz., Sonalika, HUW 468, HUW 234 and DBW 14 grown in alluvial soils of North Bank Plain Agroclimatic Zone of Assam, India. Attempts were made to find out the relationship of N₂O emission with plant morphophysiological...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-011-0464-4
更新日期：2012-07-01 00:00:00
abstract：:Leaf hair points (LHPs) are important morphological structures in many desiccation-tolerant mosses, but study of their functions has been limited. A desert moss, Syntrichia caninervis, was chosen for examination of the ecological effects of LHPs on water retention and dew formation at individual and population (patch)...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-011-0449-3
更新日期：2012-05-01 00:00:00
abstract：:In the original publication of the article, one of the author names, "Tao Fuijwara" was published incorrectly. The correct name is Tao Fujiwara. ...
journal_title：Journal of plant research
pub_type： 已发布勘误
doi：10.1007/s10265-019-01140-8
更新日期：2019-11-01 00:00:00
abstract：:Symplocarpus L. (Araceae) is a disjunct genus including S. foetidus (L.) Nutt. var. latissimus (Makino) S. Hara, S. nipponicus Makino, and S. nabekuraensis Otsuka & K. Inoue in temperate eastern Asia; S. egorovii N. S. Pavlova & V. A. Nechaev in the Russian far east; and S. foetidus (L.) Nutt. in temperate northeaster...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-010-0324-7
更新日期：2010-11-01 00:00:00
abstract：:Two types of abnormal sporophytes were observed in a population of diploid Thelypteris decursive-pinnata. Most sporophytes in this population exhibited regular chromosome pairing, resulting in the formation of 30 bivalents in meiosis I; however, they produced abortive spores to various degrees. Some formed large globo...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-011-0461-7
更新日期：2012-07-01 00:00:00
abstract：:We previously reported the occurrence of triploid strains in Japanese populations of Cayratia japonica (Thunb.) Gagnep. Interestingly, the triploid and most diploid strains had variably reduced pollen fertility. Two questions emerged from this earlier work: (1) How do triploids arise, and are they allotriploids or aut...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-011-0467-1
更新日期：2012-07-01 00:00:00
abstract：:Carex (Cyperaceae) is one of the largest genera of the flowering plants, and comprises more than 2,000 species. In Carex, section Siderostictae with broader leaves distributed in East Asia is thought to be an ancestral group. We aimed to clarify the phylogenetic relationships and chromosomal variations within the sect...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-013-0578-y
更新日期：2014-01-01 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：:We discovered that some tree species have leaves whose adaxial sides show bright green-blue fluorescence upon exposure to ultraviolet irradiation. In total, 141 native Japanese species belonging to 47 families were analyzed, and the brightness of the leaf fluorescence, represented by the L* values (Lab color space) of...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-016-0903-3
更新日期：2017-03-01 00:00:00
abstract：:Compared to planktonic species, there is little known about the ecology, physiology, and existence of benthic dinoflagellates living in sandy beach or seafloor environments. In a previous study, we discovered 13(2),17(3)-cyclopheophorbide a enol (cPPB-aE) from sand-dwelling benthic dinoflagellates. This enol had never...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-015-0745-4
更新日期：2015-11-01 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：:We have achieved the symbiotic cultivation of an apparently achlorophyllous orchid, Epipogium roseum Lindl., with a mycorrhizal fungus isolated from an underground organ of this orchid. Although the seed germination rate was extremely low, subsequent growth from protocorm to flowering was induced in a medium containin...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-006-0044-1
更新日期：2007-03-01 00:00:00
abstract：:Detailed features of genomic DNA methylation have been revealed by recent genome-wide analyses on several model organisms. An unexpected feature conserved among plants and some animals is the presence of DNA methylation within transcribed genes. For understanding the controlling mechanisms of the enigmatic genic methy...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-010-0338-1
更新日期：2010-05-01 00:00:00
abstract：:The pollen morphology of two species of the Neotropical genus Ceratostema (Ericaceae) was examined by light, scanning and transmission electron microscopy. The Ceratostema species examined have 3-colporate pollen grains united in permanent tetrahedral tetrads that show a common condition encountered in the Ericaceae. ...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-006-0029-0
更新日期：2006-11-01 00:00:00
abstract：:Intra- and transcellular water movements in plants are regulated by the water permeability of the plasma membrane (PM) and vacuolar membrane (VM) in plant cells. In the present study, we investigated the osmotic water permeability of both PM (P ( f1)) and VM (P ( f2)), as well as the bulk osmotic water permeability of...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-006-0035-2
更新日期：2007-03-01 00:00:00
abstract：:Plant-pollinator interactions have usually been researched in flowers that have fully opened. However, some pollinators can visit flowers before full opening and contribute to fruit and seed sets. In this paper, we researched the pollination biology of flowers just starting to open in four field experiments. We observ...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-015-0741-8
更新日期：2015-09-01 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 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 w...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-013-0608-9
更新日期：2014-01-01 00:00:00
abstract：:Plants have evolved intricate mechanisms to respond and adapt to a wide variety of biotic and abiotic stresses in their environment. The Arabidopsis DEAR1 (DREB and EAR motif protein 1; At3g50260) gene encodes a protein containing significant homology to the DREB1/CBF (dehydration-responsive element binding protein 1/...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-009-0252-6
更新日期：2009-11-01 00:00:00
abstract：:The phenylalanine ammonia-lyase (PAL) gene, DcPAL3, was expressed during the synthesis of anthocyanin in suspension-cultured cells of carrot (Daucus carota). There were two putative cis-elements in the DcPAL3 promoter region: the box-L and GCC-box homologs. Both of these are committed to the upregulation of promoter a...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-008-0170-z
更新日期：2008-09-01 00:00:00
abstract：:The elongation growth of the hypocotyls of radish and cucumber seedlings was examined under hypergravity in a newly developed centrifuge (Kasahara et al. 1995). The effects of hypergravity on elongation growth differed between the two species. The rate of elongation of radish hypocotyls was reduced under basipetal hyp...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/BF02344306
更新日期：1995-03-01 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
