Abstract：
:The orientation of cortical microtubules (cMT) during gravitropism was studied in epidermal cells of azuki epicotyls. The relative proportion of cells with longitudinal cMT increased in the upper epidermis, and those with transverse cMT increased in the lower epidermis. When epicotyls were kept straight during gravistimulation, no change in cMT orientation occurred in either the upper and lower epidermis. When epicotyls were forced to bend downward, cells with transverse cMT increased in the upper epidermis, and those with longitudinal cMT increased in the lower epidermis. When epicotyls were loaded with naphthylphthalamic acid, an inhibitor of auxin transport, both gravitropic bending and change in cMT orientation were inhibited. However, when a change in cMT orientation was induced by forced downward bending, cells with longitudinal cMT increased in the compressed (lower) side and those with transverse cMT increased in the extended (upper) side. It was suggested that cMT orientation was controlled by the bending of the epicotyl and not by a gravity signal per se. Loading with Gd3+, an inhibitor of the stretch-activated channel, did not inhibit gravitropic bending. However, it inhibited cMT reorientation induced by gravitropic bending and by forced bending. Involvement of the stretch-activated channel in mechano-sensitive orientation of cMT was suggested.
journal_name
J Plant Resjournal_title
Journal of plant researchauthors
Ikushima T,Shimmen Tdoi
10.1007/s10265-004-0189-8subject
Has Abstractpub_date
2005-02-01 00:00:00pages
19-26issue
1eissn
0918-9440issn
1618-0860journal_volume
118pub_type
杂志文章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：: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：:Duckweed is a kind of floating aquatic plant and increasing its starch production is favorable for bioenergy. In this study, we found that starch biosynthesis was greatly promoted by the supplement of nickel ion (Ni2+) through the comparison of other different ions. The starch content in duckweed was increased by near...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-020-01204-0
更新日期：2020-07-01 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：:How phenotypic or genetic diversity is maintained in a natural habitat is a fundamental question in evolutionary biology. Flower color polymorphism in plants is a common polymorphism. Hepatica nobilis var. japonica on the Sea of Japan (SJ) side of the Japanese mainland exhibits within population flower color polymorph...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-016-0893-1
更新日期：2017-03-01 00:00:00
abstract：:Plant organ growth changes under genetic and environmental influences can be observed as altered cell proliferation and volume growth. The two aspects are mutually dependent and intricately related. For comprehensive growth analysis, it is necessary to specify the relationship quantitatively. Here, we develop a simple...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-005-0247-x
更新日期：2006-03-01 00:00:00
abstract：:The evolution of selfing from outcrossing ancestors is known to have occurred repeatedly in angiosperms. Theoretical studies have argued that the transition from outcrossing to selfing is accomplished more easily than the reverse case, and phylogenetic analyses involving self-compatible (SC) and self-incompatible (SI)...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-009-0245-5
更新日期：2009-09-01 00:00:00
abstract：:A putative carbohydrate binding module (CBM) from strawberry (Fragaria × ananassa Duch.) expansin 2 (CBM-FaExp2) was cloned and the encoding protein was over-expressed in Escherichia coli and purified in order to evaluate its capacity to bind different cell wall polysaccharides "in vitro". The protein CBM-FaExp2 bound...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-012-0504-8
更新日期：2013-01-01 00:00:00
abstract：:We used sequence variation of the atpB- rbcL intergenic spacer of cpDNA and nested clade analysis to assess the phylogeographic pattern of Michelia formosana, a species restricted to Taiwan and the Ryukyus. In total, 31 haplotypes were identified and clustered into four major chlorotypes. Genetic composition of nearly...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s102650200026
更新日期：2002-06-01 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：:We isolated several mutants of Arabidopsis thaliana (L.) Heynh. that accumulated less anthocyanin in the plant tissues, but had seeds with a brown color similar to the wild-type. These mutants were allelic with the anthocyaninless1 (anl1) mutant that has been mapped at 15.0 cM of chromosome 5. We performed fine mappin...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-006-0067-7
更新日期：2007-05-01 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
pub_type： 杂志文章
doi：10.1007/s10265-007-0122-z
更新日期：2008-01-01 00:00:00
abstract：:Iron is vital for the establishment and function of symbiotic root nodules of legumes. Although abundant in the environment, Fe is often a limiting nutrient for plant growth due to its low solubility and availability in some soils. We have studied the mechanism of iron uptake in the root nodules of common bean to eval...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-014-0632-4
更新日期：2014-05-01 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
pub_type： 杂志文章
doi：10.1007/s10265-018-1053-6
更新日期：2018-11-01 00:00:00
abstract：:Petrosaviaceae is a monocotyledonous plant family that comprises two genera: the autotrophic Japonolirion and the mycoheterotrophic Petrosavia. Accordingly, this plant family provides an excellent system to examine specificity differences in mycobionts between autotrophic and closely related mycoheterotrophic plant sp...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-014-0661-z
更新日期：2014-11-01 00:00:00
abstract：:Light-induced chloroplast movements control efficient light utilization in leaves, and thus, are essential for leaf photosynthesis and biomass production under fluctuating light conditions. Chloroplast movements have been intensively analyzed using wild-type and mutant plants of Arabidopsis thaliana. The molecular mec...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-020-01189-w
更新日期：2020-07-01 00:00:00
abstract：:For plant cells in the early phases of water stress exposure, the genes induced under such conditions play a key role in detecting and responding to water deficit. In this study, potato cell suspensions were used as a simplified model system to dissect early molecular changes upon low water potential. In particular, t...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-012-0505-7
更新日期：2013-01-01 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：: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
pub_type： 杂志文章
doi：10.1007/s10265-012-0512-8
更新日期：2013-01-01 00:00:00
abstract：:Petal flavonoid compositions of 39 tree peony cultivars from Xibei (northwest China) were investigated in order to study the chemotaxonomic relationship among tree peony species. Six anthocyanins, the 3- O-glucosides and 3,5-di- O-glucosides of three anthocyanidins-pelargonidin (Pg), cyanidin (Cy), and peonidin (Pn)-e...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-003-0130-6
更新日期：2004-02-01 00:00:00
abstract：:The physiological response of trees to drought is crucial for understanding the risk of mortality and its feedbacks to climate under the increase in droughts due to climate change, especially for the largest trees in tropical rainforests because of their large contribution to total carbon storage and water use. We det...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-019-01161-3
更新日期：2020-03-01 00:00:00
abstract：:Expansins form a superfamily of plant proteins that assist in cell wall loosening during growth and development. The superfamily is divided into four families: EXPA, EXPB, EXLA, and EXLB (Sampedro and Cosgrove in Genome Biol 6:242, 2005. doi: 10.1186/gb-2005-6-12-242 ). Previous studies on Arabidopsis, rice, and Popul...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-015-0772-1
更新日期：2016-03-01 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：:The purpose of this study was to investigate the hormonal regulation of gummosis in grape hyacinth (Muscari armeniacum) bulbs, focusing especially on the chemical composition of the gums. The application of ethephon (2-chloroethylphosphonic acid), an ethylene-releasing compound, at 1% and 2% (w/w) in lanolin as well a...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-009-0273-1
更新日期：2010-05-01 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
pub_type： 杂志文章
doi：10.1007/s10265-014-0652-0
更新日期：2014-11-01 00:00:00
abstract：:Contrary to extensive researches on the roles of metallothioneins (MTs) in metal tolerance of animals, the roles of plant MTs in metal tolerance are largely under investigation. In this study, we evaluated the functional role of type 2 MT from Colocasia esculenta (CeMT2b) in Zn tolerance of tobacco and E. coli cells. ...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-012-0492-8
更新日期：2012-11-01 00:00:00
abstract：:Root hairs expand the effective root surface to increase the uptake of nutrients and water from the soil. Here the local effects of the two major nitrogen sources, ammonium and nitrate, on root hairs were investigated using split plates. In three contrasting accessions of A. thaliana, namely Col-0, Tsu-0 and Sha, root...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-015-0733-8
更新日期：2015-09-01 00:00:00
abstract：:The cell wall determines morphology and the environmental responses of plant cells. The primary cell wall (PCW) is produced during cell division and expansion, determining the cell shape and volume. After cell expansion, specific types of plant cells produce a lignified wall, known as a secondary cell wall (SCW). We f...
journal_title：Journal of plant research
pub_type： 杂志文章
doi：10.1007/s10265-018-1074-1
更新日期：2019-01-01 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：: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
