Abstract:
:Mixotrophic plants obtain carbon by their own photosynthetic activity and from their root-associated mycorrhizal fungi. Mixotrophy is deemed a pre-adaptation for evolution of mycoheterotrophic nutrition, where plants fully depend on fungi and lose their photosynthetic activity. The aim of this study was to clarify mycorrhizal dependency and heterotrophy level in various phenotypes of mixotrophic Pyrola japonica (Ericaceae), encompassing green individuals, rare achlorophyllous variants (albinos) and a form with minute leaves, P. japonica f. subaphylla. These three phenotypes were collected in two Japanese forests. Phylogenetic analysis of both plants and mycorrhizal fungi was conducted based on DNA barcoding. Enrichment in 13C among organs (leaves, stems and roots) of the phenotypes with reference plants and fungal fruitbodies were compared by measuring stable carbon isotopic ratio. All plants were placed in the same clade, with f. subaphylla as a separate subclade. Leaf 13C abundances of albinos were congruent with a fully mycoheterotrophic nutrition, suggesting that green P. japonica leaves are 36.8% heterotrophic, while rhizomes are 74.0% heterotrophic. There were no significant differences in δ13C values among organs in both albino P. japonica and P. japonica f. subaphylla, suggesting full and high mycoheterotrophic nutrition, respectively. Among 55 molecular operational taxonomic units (OTUs) detected as symbionts, the genus Russula was the most abundant in each phenotype and its dominance was significantly higher in albino P. japonica and P. japonica f. subaphylla. Russula spp. detected in P. japonica f. subaphylla showed higher dissimilarity with other phenotypes. These results suggest that P. japonica sensu lato is prone to evolve mycoheterotrophic variants, in a process that changes its mycorrhizal preferences, especially towards the genus Russula for which this species has a marked preference.
journal_name
J Plant Resjournal_title
Journal of plant researchauthors
Matsuda Y,Yamaguchi Y,Matsuo N,Uesugi T,Ito J,Yagame T,Figura T,Selosse MA,Hashimoto Ydoi
10.1007/s10265-020-01233-9subject
Has Abstractpub_date
2020-11-01 00:00:00pages
841-853issue
6eissn
0918-9440issn
1618-0860pii
10.1007/s10265-020-01233-9journal_volume
133pub_type
杂志文章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::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::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 seminal root system of wheat (Triticum aestivum L.) is composed of the primary seminal root, the first pair of seminal roots, and the second pair of seminal roots, which are known to grow in different directions. The direction of root growth, which can be expressed by theta (the angle between the root and the plum...
journal_title:Journal of plant research
pub_type: 杂志文章
doi:10.1007/BF02344552
更新日期:1996-12-01 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::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::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::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
pub_type: 杂志文章
doi:10.1007/s10265-017-0926-4
更新日期:2017-09-01 00:00:00
abstract::There is a growing requirement for ecosystem science to help inform a deeper understanding of the effects of global climate change and land use change on terrestrial ecosystem structure and function, from small area (plot) to landscape, regional and global scales. To meet these requirements, ecologists have investigat...
journal_title:Journal of plant research
pub_type: 杂志文章
doi:10.1007/s10265-008-0188-2
更新日期:2009-01-01 00:00:00
abstract::The metazoan cell nucleus is physically supported by nuclear lamina structures, which are mainly composed of filamentous protein lamins. CROWDED NUCLEI (CRWNs)/nuclear matrix constituent proteins are considered potential candidates of lamin analogs in plants. CRWNs specifically localize to the nuclear periphery, maint...
journal_title:Journal of plant research
pub_type: 杂志文章
doi:10.1007/s10265-020-01184-1
更新日期:2020-07-01 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::Chromosome numbers and karyotypes of 26 Ophiopogon species, 2 Liriope species and 5 Peliosanthes species of the family Liliaceae from Southwest China, were investigated. The study revealed a detailed picture of chromosome features and their pattern of karyotype variation in Ophiopogoneae. Karyotype asymmetry in differ...
journal_title:Journal of plant research
pub_type: 杂志文章
doi:10.1007/s10265-013-0557-3
更新日期:2013-09-01 00:00:00
abstract::Cassava anthracnose disease (CAD), caused by the fungus Colletotrichum gloeosporioides f. sp. Manihotis, is a serious disease of cassava (Manihot esculenta) worldwide. In this study, we established a cassava oligonucleotide-DNA microarray representing 59,079 probes corresponding to approximately 30,000 genes based on ...
journal_title:Journal of plant research
pub_type: 杂志文章
doi:10.1007/s10265-016-0828-x
更新日期:2016-07-01 00:00:00
abstract::We examined the effects of mechanical load on transcripts of a set of cell wall related genes that are implicated in the formation of supporting tissues, by applying a 50 mg strip of aluminum foil to the inflorescence stem of Arabidopsis thaliana, a weight roughly half the fresh weight of the stem. Transcript levels o...
journal_title:Journal of plant research
pub_type: 杂志文章
doi:10.1007/s10265-009-0251-7
更新日期:2009-11-01 00:00:00
abstract::Sesuvium portulacastrum is a halophytic species well adapted to salinity and drought. In order to evaluate the physiological impact of salt on water deficit-induced stress response, we cultivated seedlings for 12 days, in the presence or absence of 100 mmol l(-1) NaCl, on a nutrient solution containing either 0 mmol l...
journal_title:Journal of plant research
pub_type: 杂志文章
doi:10.1007/s10265-006-0056-x
更新日期:2007-03-01 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
pub_type: 杂志文章
doi:10.1007/s10265-015-0764-1
更新日期:2016-01-01 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
pub_type: 杂志文章
doi:10.1007/s10265-007-0078-z
更新日期:2007-05-01 00:00:00
abstract::Lipids are the major constituents of all membranous structures in plants. Plants possess two pathways for lipid biosynthesis: the prokaryotic pathway (i.e., plastidic pathway) and the eukaryotic pathway (i.e., endoplasmic-reticulum (ER) pathway). Whereas some plants synthesize galactolipids from diacylglycerol assembl...
journal_title:Journal of plant research
pub_type: 杂志文章
doi:10.1007/s10265-015-0781-0
更新日期:2016-03-01 00:00:00
abstract::Terrestrial green plants absorb photosynthetically active radiation (PAR; 400-700 nm) but do not absorb photons evenly across the PAR waveband. The spectral absorbance of photosystems and chloroplasts is lowest for green light, which occurs within the highest irradiance waveband of direct solar radiation. We demonstra...
journal_title:Journal of plant research
pub_type: 杂志文章,评审
doi:10.1007/s10265-017-0910-z
更新日期:2017-05-01 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::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::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::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
pub_type: 杂志文章
doi:10.1007/s10265-019-01136-4
更新日期:2019-11-01 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::In multicellular organisms, cellular components are constantly translocated within cells and are also transported exclusively between limited cells, regardless of their physical distance. Exosomes function as one of the key mediators of intercellular transportation. External vesicles were identified 50 years ago in pl...
journal_title:Journal of plant research
pub_type: 杂志文章,评审
doi:10.1007/s10265-017-0907-7
更新日期:2017-05-01 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::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::Experimental conditions for efficient callus initiation from mangrove plants were investigated. As a source explant, leaf ofBruguiera sexangula was used. Mangrove plant is one of the most famous woody plants which can grow at the salty area. The initiated callus can be a suitable material for the investigation of salt...
journal_title:Journal of plant research
pub_type: 杂志文章
doi:10.1007/BF02506839
更新日期:1997-03-01 00:00:00
abstract::Plant MADS-box genes encode transcriptional regulators that are critical for a number of developmental processes, such as the establishment of floral organ identity, flowering time, and fruit development. It appears that the MADS-box gene family has undergone considerable gene duplication and divergence within various...
journal_title:Journal of plant research
pub_type: 杂志文章
doi:10.1007/s10265-005-0215-5
更新日期:2005-06-01 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