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1. Effects of White Lupin and Groundnut on Fractionated Rhizosphere Soil P of Different P-Limited Soil Types in Japan

Author:
Wasaki, Jun,   et al.   ; Imai, Kaoru; Sugihara, Soh; Tanaka, Haruo;     Show all 4 Authors
Source:
Agronomy 2019 v.9 no.2
ISSN:
2073-4395
Subject:
Arachis hypogaea; Lupinus albus; acid soils; aluminum; crop production; fractionation; inorganic phosphorus; iron; peanuts; rhizosphere; sandy soils; soil sampling; solubilization; volcanic soils; Japan
Abstract:
... Phosphorus (P) is an essential nutrient for crop production, while most soil P is the less labile P associated with Aluminum (Al) and Iron (Fe) in acidic soils of Japan. The objectives of this study were to evaluate the effects of two contrasting P-efficient legumes (white lupin, WL (Lupinus albus L.); and groundnut, GN (Arachis hypogaea L.)) on rhizosphere soil P dynamics in different soil types ...
DOI:
10.3390/agronomy9020068

2. Organic acid excretion from roots: a plant mechanism for enhancing phosphorus acquisition, enhancing aluminum tolerance, and recruiting beneficial rhizobacteria

Author:
Wasaki, Jun,   et al.   ; Wu, Liujie; Kobayashi, Yuriko; Koyama, Hiroyuki;     Show all 4 Authors
Source:
Soil science and plant nutrition 2018 v.64 no.6 pp. 697-704
ISSN:
1747-0765
Subject:
Lupinus albus; aluminum; carbon; excretion; organic acids and salts; phosphorus; pleiotropy; rhizosphere bacteria; roots; stress tolerance; systemic acquired resistance
Abstract:
... The beneficial effects of organic acids (OAs) excretion from plant roots were first proposed as being associated with the mechanism of superior phosphorus utilization by the cluster roots of white lupin (Lupinus albus L.), and these effects are now widely accepted as pleiotropic effects associated with stress tolerance of plants. Excreted OAs detoxify rhizotoxic aluminum, recruit beneficial bacter ...
DOI:
10.1080/00380768.2018.1537093

3. Distribution and stress tolerance of Fimbristylis dichotoma subsp. podocarpa (Cyperaceae) growing in highly acidic solfatara fields

Author:
Wasaki, Jun,   et al.   ; Yamamoto, Akihiro; Funatsu, Yuichi; Nakatsubo, Takayuki;     Show all 4 Authors
Source:
Ecological research 2018 v.33 no.5 pp. 971-978
ISSN:
0912-3814
Subject:
Fimbristylis; Miscanthus sinensis; aluminum; aluminum chloride; environmental factors; germination; hot springs; plants (botany); pot culture; rhizosphere; seedling growth; soil pH; soil quality; stress tolerance; surveys; volcanoes; Japan
Abstract:
... Solfatara fields, areas surrounding fumaroles (volcanic vents) near the hot springs or volcanoes, are characterized by severe environmental conditions such as low soil pH and high aluminum contents. Fimbristylis dichotoma subsp. podocarpa is an endangered plant distributed in solfatara fields of Kyushu, western Japan. This species is known to form stands in sites closed to fumaroles where another ...
DOI:
10.1007/s11284-018-1605-1

4. P and N deficiency change the relative abundance and function of rhizosphere microorganisms during cluster root development of white lupin (Lupinus albus L.)

Author:
Wasaki, Jun,   et al.   ; Sakaguchi, Junya; Yamamura, Takuya; Ito, Susumu; Shinano, Takuro; Osaki, Mitsuru; Kandeler, Ellen;     Show all 7 Authors
Source:
Soil science and plant nutrition 2018 v.64 no.6 pp. 686-696
ISSN:
1747-0765
Subject:
Burkholderiales; Lupinus albus; Rhizobiales; Rhodospirillales; acid phosphatase; citrates; community structure; denaturing gradient gel electrophoresis; greenhouses; microbial communities; microorganisms; phosphorus; plant growth; plant nutrition; rhizosphere; roots; shoots; soil
Abstract:
... We studied microbe-plant interactions of white lupin, a cluster root-forming plant, under low P and N conditions to examine increased nutrient acquisition by plants either by a shift to a more specialized microbial community or changes in microbial enzyme production. White lupin plants were grown in rhizoboxes filled with either P- or N-deficient soil; fertilized soil was used as control. After cu ...
DOI:
10.1080/00380768.2018.1536847

5. Molecular mechanisms underpinning phosphorus‐use efficiency in rice

Author:
Wasaki, Jun,   et al.   ; Dissanayaka, D.M.S.B.; Plaxton, William C.; Lambers, Hans; Siebers, Meike; Marambe, Buddhi;     Show all 6 Authors
Source:
Plant, cell and environment 2018 v.41 no.7 pp. 1483-1496
ISSN:
0140-7791
Subject:
biomass; crops; dry matter partitioning; energy metabolism; hydrolysis; lipids; nutrient use efficiency; orthophosphates; phosphorus; phosphorus fertilizers; protein synthesis; ribosomal RNA; rice; roots; soil
Abstract:
... Orthophosphate (H₂PO₄⁻, Pi) is an essential macronutrient integral to energy metabolism as well as a component of membrane lipids, nucleic acids, including ribosomal RNA, and therefore essential for protein synthesis. The Pi concentration in the solution of most soils worldwide is usually far too low for maximum growth of crops, including rice. This has prompted the massive use of inefficient, pol ...
DOI:
10.1111/pce.13191

6. Organ-specific allocation pattern of acquired phosphorus and dry matter in two rice genotypes with contrasting tolerance to phosphorus deficiency

Author:
Wasaki, Jun,   et al.   ; Dissanayaka, D. M. S. B.; Nishida, Sho; Tawaraya, Keitaro;     Show all 4 Authors
Source:
Soil science and plant nutrition 2018 v.64 no.3 pp. 282-290
ISSN:
1747-0765
Subject:
Regosols; biomass; cultivars; filling period; genotype; grain yield; landraces; leaves; panicles; phosphorus; rice; tissues; yield components
Abstract:
... Our earlier study demonstrated that the landrace of Japonica rice, Akamai exhibits low-P (phosphorous) tolerance mechanisms compared to the conventional type cultivar, Koshihikari. The present study examined the genotypic difference of yield, plasticity of root growth, and internal utilization of acquired P (allocation pattern of biomass and P among different vegetative and reproductive organs) of ...
DOI:
10.1080/00380768.2018.1436941

7. Ancient rice cultivar extensively replaces phospholipids with non‐phosphorus glycolipid under phosphorus deficiency

Author:
Wasaki, Jun,   et al.   ; Tawaraya, Keitaro; Honda, Soichiro; Cheng, Weiguo; Chuba, Masaru; Okazaki, Yozo; Saito, Kazuki; Oikawa, Akira; Maruyama, Hayato; Wagatsuma, Tadao;     Show all 10 Authors
Source:
Physiologia plantarum 2018 v.163 no.3 pp. 297-305
ISSN:
0031-9317
Subject:
Oryza sativa; cultivars; diacylglycerols; glycerol; glycolipids; leaves; liquid chromatography; lysophosphatidylcholine; mass spectrometry; metabolites; phosphates; phosphatidylethanolamines; phosphorus; plant nutrition; rice; soil; soil nutrients; soil-plant interactions; triacylglycerols
Abstract:
... Recycling of phosphorus (P) from P‐containing metabolites is an adaptive strategy of plants to overcome soil P deficiency. This study was aimed at demonstrating differences in lipid remodelling between low‐P‐tolerant and ‐sensitive rice cultivars using lipidome profiling. The rice cultivars Akamai (low‐P‐tolerant) and Koshihikari (low‐P‐sensitive) were grown in a culture solution with [2 mg l⁻¹ (+ ...
DOI:
10.1111/ppl.12699

8. Identification of genomic regions associated with low phosphorus tolerance in japonica rice (Oryza sativa L.) by QTL-Seq

Author:
Wasaki, Jun,   et al.   ; Nishida, Sho; Dissanayaka, D. M. S. B; Honda, Soichiro; Tateishi, Yoshiko; Chuba, Masaru; Maruyama, Hayato; Tawaraya, Keitaro;     Show all 8 Authors
Source:
Soil science and plant nutrition 2018 v.64 no.3 pp. 278-281
ISSN:
1747-0765
Subject:
Oryza sativa; breeding; chromosomes; crop production; cultivars; environmental impact; genes; genomics; high-throughput nucleotide sequencing; phosphorus; phosphorus fertilizers; production costs; quantitative trait loci; rice; single nucleotide polymorphism
Abstract:
... Phosphorus (P) is a major nutrient supporting rice productivity. Improving low-P tolerance of rice is expected to reduce dependence on P fertilizer, thereby reducing rice production costs and environmental impacts. This report describes the mapping of quantitative trait loci (QTL) associated with P deficiency tolerance in japonica rice. An F5 population derived from a cross of the low-P tolerant c ...
DOI:
10.1080/00380768.2017.1412238

9. Landrace of japonica rice, Akamai exhibits enhanced root growth and efficient leaf phosphorus remobilization in response to limited phosphorus availability

Author:
Wasaki, Jun,   et al.   ; Dissanayaka, D. M. S. B.; Maruyama, Hayato; Nishida, Sho; Tawaraya, Keitaro;     Show all 5 Authors
Source:
Plant and soil 2017 v.414 no.1-2 pp. 327-338
ISSN:
0032-079X
Subject:
cultivars; inflorescences; inorganic phosphorus; plant organs; rice; landraces; developmental stages; shoots; acclimation; soil; grain yield; root growth; roots; leaves; crops
Abstract:
... AIMS: Phosphorus (P) acquisition through extensive root growth and P allocation to different plant organs through efficient remobilization are important for acclimation of crop plants to P-limited environments. This study elucidated changes in rice root growth and leaf P-remobilization and their influence on grain yield under P deficiency. METHODS: Two pot experiments were conducted with (P100) an ...
DOI:
10.1007/s11104-016-3129-1

10. Phosphorus-mobilization strategy based on carboxylate exudation in lupins (lupinus, fabaceae): a mechanism facilitating the growth and phosphorus acquisition of neighbouring plants under phosphorus-limited conditions

Author:
WASAKI, JUN,   et al.   ; DISSANAYAKA, D. M. S. B.; WICKRAMASINGHE, W. M. K. R.; MARAMBE, BUDDHI;     Show all 4 Authors
Source:
Experimental agriculture 2017 v.53 no.2 pp. 308-319
ISSN:
1469-4441
Subject:
Lupinus albus; acid soils; companion crops; exudation; intercropping; mixed cropping; models; phosphorus; rhizosphere; root growth
Abstract:
... The capability of some plant species to mobilize phosphorus (P) from poorly available soil P fractions can improve P availability for P-inefficient plant species in intercropping. White lupin (Lupinus albus) has been investigated as a model P-mobilizing plant for its capability of enhancing the P acquisition of neighbouring species under P-limited conditions. To date, investigations have led to co ...
DOI:
10.1017/S0014479716000351

11. Effects of different phosphorus-efficient legumes and soil texture on fractionated rhizosphere soil phosphorus of strongly weathered soils

Author:
Wasaki, Jun,   et al.   ; Sugihara, Soh; Tomita, Yutaro; Nishigaki, Tomohiro; Kilasara, Method; Funakawa, Shinya;     Show all 6 Authors
Source:
Biology and fertility of soils 2016 v.52 no.3 pp. 367-376
ISSN:
0178-2762
Subject:
Cajanus cajan; Lupinus albus; clay soils; cowpeas; crop production; pH; phosphorus; pigeon peas; plant growth; rhizosphere; sandy soils; soil texture; tillage; Tanzania
Abstract:
... Phosphorus (P) deficiency is one of the largest constraints to crop production in tropical Africa; so, it is necessary to better exploit soil P resources through increasing labile soil P using P-efficient plants. The aim of this study was to evaluate the effect of various P-efficient legumes on fractionated rhizosphere soil P in two contrasting textured soils of Tanzania, i.e., strongly weathered ...
DOI:
10.1007/s00374-015-1082-4

12. Interspecific facilitation of P acquisition in intercropping of maize with white lupin in two contrasting soils as influenced by different rates and forms of P supply

Author:
Wasaki, Jun,   et al.   ; Dissanayaka, Dissanayaka Mudiyanselage Samantha Bandara; Maruyama, Hayato; Masuda, Genki;     Show all 4 Authors
Source:
Plant and soil 2015 v.390 no.1-2 pp. 223-236
ISSN:
0032-079X
Subject:
Andosols; Lupinus; Regosols; bioaccumulation; corn; intercropping; mixed culture; nutrient uptake; pH; phosphorus; phytic acid; plant growth; rhizosphere; soil nutrient dynamics
Abstract:
... AIMS: This study of a maize-white lupin model cropping system was conducted to investigate the effects of rhizosphere-sharing of white lupin, a P-efficient plant, on growth and P accumulation of maize under different P rates and forms in two contrasting soils. METHODS: With Regosol and Andosol, a 42-day pot experiment was conducted for 0P (no P addition), 50Pi, 100Pi (50 and 100 mg P kg⁻¹soil by N ...
DOI:
10.1007/s11104-015-2392-x

13. Recent Progress in Plant Nutrition Research: Cross-Talk Between Nutrients, Plant Physiology and Soil Microorganisms

Author:
Wasaki, Jun,   et al.   ; Ohkama-Ohtsu, Naoko;     Show all 2 Author
Source:
Plant & cell physiology 2010 v.51 no.8 pp. 1255-1264
ISSN:
0032-0781
Subject:
biochemical pathways; mineral content; mineral soils; nutrient uptake; nutrients; nutrition research; plant exudates; plant hormones; plant nutrition; plant physiology; soil microorganisms
Abstract:
... Mineral nutrients taken up from the soil become incorporated into a variety of important compounds with structural and physiological roles in plants. We summarize how plant nutrients are linked to many metabolic pathways, plant hormones and other biological processes. We also focus on nutrient uptake, describing plant-microbe interactions, plant exudates, root architecture, transporters and their ...
DOI:
10.1093/pcp/pcq095
PubMed:
20624893

14. Identification and distribution of cellobiose 2-epimerase genes by a PCR-based metagenomic approach

Author:
Wasaki, Jun,   et al.   ; Taguchi, Hidenori; Senoura, Takeshi; Akasaka, Hiroshi; Watanabe, Jun; Kawaguchi, Kazuki; Komata, Yosuke; Hanashiro, Kiyotoshi; Ito, Susumu;     Show all 9 Authors
Source:
Applied microbiology and biotechnology 2015 v.99 no.10 pp. 4287-4295
ISSN:
0175-7598
Subject:
Escherichia coli; Firmicutes; Spirochaetales; Verrucomicrobium; bacteria; cellobiose; genes; metagenomics; phylogeny; polymerase chain reaction; proteins; rumen; sewage sludge; sheep; soil; sugar beet
Abstract:
... Cellobiose 2-epimerase (CE) catalyzes the reversible epimerization of cellobiose to 4-O-β-D-glucopyranosyl-D-mannose. By using a PCR-based metagenomic approach, 71 ce-like gene fragments were obtained from wide-ranging environmental samples such as sheep rumen, soils, sugar beet extracts, and anaerobic sewage sludge. The frequency of isolation of the fragments similar to known sequences varied dep ...
DOI:
10.1007/s00253-014-6265-7

15. The mannobiose-forming exo-mannanase involved in a new mannan catabolic pathway in Bacteroides fragilis

Author:
Wasaki, Jun,   et al.   ; Kawaguchi, Kazuki; Senoura, Takeshi; Ito, Shigeaki; Taira, Toki; Ito, Hiroyuki; Ito, Susumu;     Show all 7 Authors
Source:
Archives of microbiology 2014 v.196 no.1 pp. 17-23
ISSN:
0302-8933
Subject:
Bacteroides fragilis; Escherichia coli; beta-mannosidase; genes; glycosides; mannans; phosphorylase; sugars
Abstract:
... We have proposed a new mannan catabolic pathway in Bacteroides fragilis NCTC 9343 that involves a putative mannanase ManA in glycoside hydrolase family 26 (BF0771), a mannobiose and/or sugar transporter (BF0773), mannobiose 2-epimerase (BF0774), and mannosylglucose phosphorylase (BF0772). If this hypothesis is correct, ManA has to generate mannobiose from mannans as the major end product. In this ...
DOI:
10.1007/s00203-013-0938-y

16. Effect of exogenous phosphatase and phytase activities on organic phosphate mobilization in soils with different phosphate adsorption capacities

Author:
Wasaki, Jun,   et al.   ; Maruyama, Hayato; Yamamura, Takuya; Kaneko, Yohei; Matsui, Hirokazu; Watanabe, Toshihiro; Shinano, Takuro; Osaki, Mitsuru;     Show all 8 Authors
Source:
Soil science and plant nutrition 2012 v.58 no.1 pp. 41-51
ISSN:
1747-0765
Subject:
Agrobacterium; Andosols; Lupinus albus; Nicotiana tabacum; Regosols; acid phosphatase; adsorption; complementary DNA; dry matter accumulation; genes; genetic transformation; phosphates; phosphorus; phytases; phytic acid; soil treatment; solubility; tobacco; transgenic plants
Abstract:
... This study evaluated the effects of exogenous LASAP2 for acid phosphatase (APase) and LASAP3 for phytase of white lupin (Lupinus albus L.) on phosphorus (P) accumulation from organic P in soils. The potential for LASAP2 -overexpressing tobacco (Nicotiana tabacum L.) to increase organic P in soil was examined in our previous study. However, LASAP2 has low specificity for phytate, the predominant fo ...
DOI:
10.1080/00380768.2012.656298

17. Structure of Novel Enzyme in Mannan Biodegradation Process 4-O-β-d-Mannosyl-d-Glucose Phosphorylase MGP

Author:
Wasaki, Jun,   et al.   ; Nakae, Setsu; Ito, Shigeaki; Higa, Mariko; Senoura, Takeshi; Hijikata, Atsushi; Shionyu, Masafumi; Ito, Susumu; Shirai, Tsuyoshi;     Show all 9 Authors
Source:
Journal of Molecular Biology 2013 v.425 pp. 4468-4478
ISSN:
0022-2836
Subject:
biodegradation; chemical elements; crystal structure; phosphates; phosphorylase; solvents
Abstract:
... The crystal structure of a novel component of the mannan biodegradation system, 4-O-β-d-mannosyl-d-glucose phosphorylase (MGP), was determined to a 1.68-Å resolution. The structure of the enzyme revealed a unique homohexameric structure, which was formed by using two helices attached to the N-terminus and C-terminus as a tab for sticking between subunits. The structures of MGP complexes with genui ...
DOI:
10.1016/j.jmb.2013.08.002

18. Analysis of bacterial communities on alkaline phosphatase genes in soil supplied with organic matter

Author:
WASAKI, Jun,   et al.   ; SAKURAI, Michihiko; TOMIZAWA, Yuiko; SHINANO, Takuro; OSAKI, Mitsuru;     Show all 5 Authors
Source:
Soil science and plant nutrition 2008 v.54 no.1 pp. 62-71
ISSN:
0038-0768
Subject:
Mesorhizobium loti; Pseudomonas fluorescens; alkaline phosphatase; alkaline soils; bacterial communities; biomass; community structure; denaturing gradient gel electrophoresis; fertilizer application; fertilizers; genes; lettuce; organic matter; polymerase chain reaction; principal component analysis; rhizosphere; soil bacteria; Japan
Abstract:
... We studied the effects of the application of organic matter (OM) and chemical fertilizer (CF) on soil alkaline phosphatase (ALP) activity and ALP-harboring bacterial communities in the rhizosphere and bulk soil in an experimental lettuce field in Hokkaido, Japan. The ALP activity was higher in soils with OM than in soils with CF, and activity was higher in the rhizosphere for OM than in the bulk s ...
DOI:
10.1111/j.1747-0765.2007.00210.x

19. Localization of acid phosphatase activities in the roots of white lupin plants grown under phosphorus-deficient conditions

Author:
WASAKI, Jun,   et al.   ; KOJIMA, Soichi; MARUYAMA, Hayato; HAASE, Susan; OSAKI, Mitsuru; KANDELER, Ellen;     Show all 6 Authors
Source:
Soil science and plant nutrition 2008 v.54 no.1 pp. 95-102
ISSN:
0038-0768
Subject:
Lupinus albus; acid phosphatase; fluorescence; hydrolysis; hydroponics; isoelectric focusing; nutrition; phosphates; rhizosphere; root hairs; soil; tissues
Abstract:
... Acid phosphatase (APase) produced by the cluster roots of white lupin (Lupinus albus L.) plays an important role in inorganic phosphate (Pi) acquisition. Although the importance of cluster roots in Pi acquisition is well known, information on the distribution of APase within tissues of normal and cluster roots is lacking. Isoelectric focusing of APase isoforms as well as histochemical localization ...
DOI:
10.1111/j.1747-0765.2007.00207.x

20. New microbial mannan catabolic pathway that involves a novel mannosylglucose phosphorylase

Author:
Wasaki, Jun,   et al.   ; Senoura, Takeshi; Ito, Shigeaki; Taguchi, Hidenori; Higa, Mariko; Hamada, Shigeki; Matsui, Hirokazu; Ozawa, Tadahiro; Jin, Shigeki; Watanabe, Jun; Ito, Susumu;     Show all 11 Authors
Source:
Biochemical and biophysical research communications 2011 v.408 no.4 pp. 701-706
ISSN:
0006-291X
Subject:
Bacteroides; Cellvibrio; Flavobacterium; glycolysis; microorganisms; operon; phosphorylase; sugars
Abstract:
... The consecutive genes BF0771–BF0774 in the genome of Bacteroidesfragilis NCTC 9343 were found to constitute an operon. The functional analysis of BF0772 showed that the gene encoded a novel enzyme, mannosylglucose phosphorylase that catalyzes the reaction, 4-O-β-d-mannopyranosyl-d-glucose+Pi→mannose-1-phosphate+glucose. Here we propose a new mannan catabolic pathway in the anaerobe, which involves ...
DOI:
10.1016/j.bbrc.2011.04.095