Recognition of two major clades and early diverged groups within the subfamily Cyperoideae (Cyperaceae) including Korean sedges.

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

authors： Terashima I,Shiyomi M,Fukuda H

更新日期：2014-01-01 00:00:00

abstract：:Salt tolerance mechanisms were studied in three Irano-Turanian halophytic species from the Brassicaceae ‎‎(Lepidium latifolium, L. perfoliatum and Schrenkiella parvula) and compared with the glycophyte Arabidopsis thaliana. According to seed germination under salt stress, L. perfoliatum was the most tolerant species, ...

journal_title：Journal of plant research

authors： Hajiboland R,Bahrami-Rad S,Akhani H,Poschenrieder C

更新日期：2018-11-01 00:00:00

abstract：:The wild flowering cherry Prunus lannesiana var. speciosa is highly geographically restricted, being confined to the Izu Islands and neighboring peninsulas in Japan. In an attempt to elucidate how populations of this species have established we investigated the genetic diversity and differentiation in seven population...

journal_title：Journal of plant research

authors： Kato S,Iwata H,Tsumura Y,Mukai Y

更新日期：2011-01-01 00:00:00

abstract：:Leaf physiological and gas-exchange traits of a summer-green herbaceous perennial, Parasenecio yatabei, growing along a stream were examined in relation to leaf age. In its vegetative phase, the aerial part of this plant consists of only one leaf and provides an ideal system for the study of leaf longevity. Volumetric...

journal_title：Journal of plant research

authors： Tomimatsu H,Hori Y

更新日期：2008-01-01 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

authors： Tobe H,Huang YL,Kadokawa T,Tamura MN

更新日期：2018-05-01 00:00:00

abstract：:Pristine tropical rainforests in Southeast Asia have rich species diversity and are important habitats for many plant species. However, the extent of these forests has declined in recent decades and they have become fragmented due to human activities. These developments may reduce the genetic diversity of species with...

journal_title：Journal of plant research

authors： Fukue Y,Kado T,Lee SL,Ng KK,Muhammad N,Tsumura Y

更新日期：2007-05-01 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

authors： Yoshimura Y

更新日期：2011-01-01 00:00:00

abstract：:The pollen morphology of 11 genera and 11 species of the Hydrocharitaceae and one species of the Najadaceae was studied using scanning and transmission electron microscopies, and the exine structures and sculptures are discussed in relation to pollination mechanisms and the molecular phylogeny. The pollen grains of th...

journal_title：Journal of plant research

authors： Tanaka N,Uehara K,Murata J

更新日期：2004-08-01 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

authors： Brown RC,Lemmon BE

更新日期：2008-07-01 00:00:00

abstract：:Minghuai 1 (MH1) is a yam (Dioscorea alata) cultivar with high tolerance to flooding but sensitivity to chilling. MH1 responded differently to chilling and flooding according to various physiological parameters and antioxidant enzymes. Flooding led to an increase in ascorbate peroxidase (APX) activity in both roots an...

journal_title：Journal of plant research

authors： Chen Z,Lu HH,Hua S,Lin KH,Chen N,Zhang Y,You Z,Kuo YW,Chen SP

更新日期：2019-11-01 00:00:00

abstract：:Phytagel media were evaluated as systems to mechanically impede roots of A. thaliana. Studying mechanical properties of Phytagel and exploring the root response to mechanical stimulation can facilitate plant culture and plant development. Breaking strengths of 0.5-2.0% phytagel media were tested by uniaxial compressio...

journal_title：Journal of plant research

authors： Yan J,Wang B,Zhou Y

更新日期：2017-09-01 00:00:00

abstract：:Electron transport in photosystem II (PSII) and photosystem I (PSI) was estimated in terms of chlorophyll fluorescence and changes in P700 redox, respectively, in the unicellular green alga Dunaliella salina in the presence or absence of a nitrogen source in the culture medium. In a nitrogen-containing medium, the qua...

journal_title：Journal of plant research

authors： Einali A,Shariati M,Sato F,Endo T

更新日期：2013-01-01 00:00:00

abstract：:In general, Glomeromycotina was thought to be the earliest fungi forming mycorrhiza-like structure (MLS) in land plant evolution. In contrast, because the earliest divergent lineage of extant land plants, i.e. Haplomitriopsida liverworts, associates only with Mucoromycotina mycobionts, recent studies suggested that th...

journal_title：Journal of plant research

authors： Yamamoto K,Shimamura M,Degawa Y,Yamada A

更新日期：2019-11-01 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

authors： Ishida TA,Hattori K,Shibata S,Suzuki M,Kimura MT

更新日期：2005-06-01 00:00:00

abstract：:In young cucumber seedlings, the peg is a polar out-growth of tissue that functions by snagging the seed coat, thereby freeing the cotyledons. Previous studies have indicated that peg formation is gravity dependent. In this study we analyzed peg formation in cucumber seedlings (Cucumis sativus L. cv Burpee Hybrid II) ...

journal_title：Journal of plant research

authors： Link BM,Cosgrove DJ

更新日期：1999-12-01 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

authors： Joubert DA,de Lorenzo G,Vivier MA

更新日期：2013-03-01 00:00:00

abstract：:Apogamous fern species are often difficult to distinguish from related species because of their continuous morphological variations. To clarify the genetic relationships among the members of the Dryopteris varia complex, we analyzed the nucleotide sequences of the plastid gene rbcL and the nuclear gene PgiC. We also a...

journal_title：Journal of plant research

authors： Hori K,Tono A,Fujimoto K,Kato J,Ebihara A,Watano Y,Murakami N

更新日期：2014-11-01 00:00:00

abstract：:Plasmodesmata (PD) are intercellular connections in plants which play roles in various developmental processes. They are also found in brown algae, a group of eukaryotes possessing complex multicellularity, as well as green plants. Recently, we conducted an ultrastructural study of PD in several species of brown algae...

journal_title：Journal of plant research

authors： Terauchi M,Nagasato C,Motomura T

更新日期：2015-01-01 00:00:00

abstract：:Polymerase chain reaction fragment length polymorphisms and nucleotide sequences for a cytochrome P450 gene encoding flavonoid-3',5'-hydroxylase, Hf1, were studied in 19 natural taxa of Petunia. Natural Petunia taxa were classified into six groups based on major insertion or deletion events that occurred only in intro...

journal_title：Journal of plant research

authors： Chen S,Matsubara K,Omori T,Kokubun H,Kodama H,Watanabe H,Hashimoto G,Marchesi E,Bullrich L,Ando T

更新日期：2007-05-01 00:00:00

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

authors： Takatani S,Otani K,Kanazawa M,Takahashi T,Motose H

更新日期：2015-11-01 00:00:00

abstract：:Legumes engage in symbiosis with nitrogen-fixing soil bacteria, collectively called rhizobia, under nitrogen-limited conditions. In many legumes, the root invasion of rhizobia is mediated by infection threads (ITs), tubular invaginations of the host cell wall and plasma membrane, developed from infection foci of defor...

journal_title：Journal of plant research

authors： Liu M,Soyano T,Yano K,Hayashi M,Kawaguchi M

更新日期：2019-09-01 00:00:00

abstract：:Various photoreceptors in plants are used to monitor important environmental light signals and regulate plant development. Despite their functional importance, recent studies have demonstrated that red/far-red absorbing phytochromes or blue/UV-A absorbing cryptochromes are involved in local adaptation within a species...

journal_title：Journal of plant research

authors： Ikeda H,Fujii N,Setoguchi H

更新日期：2011-01-01 00:00:00

abstract：:Approximately one-fourth of Japan's native plant species are threatened with extinction. To conserve these species, it is critical to evaluate genetic diversity at species-level and population-level. Some factors, including population size and geographic distribution, are known to influence the population genetic dive...

journal_title：Journal of plant research

authors： Maki M

更新日期：2003-04-01 00:00:00

abstract：:Carbon autonomy of current-year shoots in flowering, and of current-year shoots plus 1-year-old shoots (1-year-old shoot system) in fruiting of Siberian alder (Alnus hirsuta var. sibirica) was investigated using a stable isotope of carbon, (13)C. The current-year shoot and 1-year-old shoot systems were fed (13)CO(2) a...

journal_title：Journal of plant research

authors： Hasegawa S,Koba K,Tayasu I,Takeda H,Haga H

更新日期：2003-06-01 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

authors： Deng CL,Wang NN,Li SF,Dong TY,Zhao XP,Wang SJ,Gao WJ,Lu LD

更新日期：2015-09-01 00:00:00

abstract：:The Chenopodiaceae is one of the families including C4 species among eudicots. In this family, the genus Chenopodium is considered to include only C3 species. However, we report here a transition from C3 photosynthesis to proto-Kranz to C3-C4 intermediate type in Chenopodium. We investigated leaf anatomical and photos...

journal_title：Journal of plant research

authors： Yorimitsu Y,Kadosono A,Hatakeyama Y,Yabiku T,Ueno O

更新日期：2019-11-01 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

authors： Manish K,Pandit MK,Telwala Y,Nautiyal DC,Koh LP,Tiwari S

更新日期：2017-09-01 00:00:00

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 pal...

journal_title：Journal of plant research

authors： Tsukaya H

更新日期：2002-02-01 00:00:00

abstract：:HKT transporters are Na(+)-permeable membrane proteins, which mediate Na(+) and K(+) homeostasis in K(+)-depleted and saline environments in plants. Class II HKT transporters, a distinct subgroup found predominantly in monocots, are known to mediate Na(+)-K(+) co-transport in principle. Here we report features of ion ...

journal_title：Journal of plant research

authors： Suzuki K,Costa A,Nakayama H,Katsuhara M,Shinmyo A,Horie T

更新日期：2016-01-01 00:00:00

abstract：:It has been almost 30 years since RNA interference (RNAi) was shown to silence genes via double-stranded RNAs (dsRNAs) in Caenorhabditis elegans (Fire et al. 1998). 20-30-nucleotide (nt) small non-coding RNAs are a key element of the RNAi machinery. Recently, phased small interfering RNAs (phasiRNAs), small RNAs that ...

journal_title：Journal of plant research

authors： Komiya R

更新日期：2017-01-01 00:00:00