| FullText URL | fulltext.pdf |
|---|---|
| Author | Akhtar, Muhammad Shahbaz| Aslam, Sohaib| Ditta, Allah| Albalawi, Bedur Faleh A.| Oki, Yoko| Nakashima, Yoshitaka| |
| Keywords | Azolla biomass bioconcentration factor Cu removal efficiency Cu toxicity translocation factor |
| Published Date | 2022-12-28 |
| Publication Title | Sustainability |
| Volume | volume15 |
| Issue | issue1 |
| Publisher | MDPI |
| Start Page | 497 |
| ISSN | 2071-1050 |
| Content Type | Journal Article |
| language | English |
| OAI-PMH Set | 岡山大学 |
| Copyright Holders | © 2022 by the authors. |
| File Version | publisher |
| DOI | 10.3390/su15010497 |
| Web of Science KeyUT | 000909376900001 |
| Related Url | isVersionOf https://doi.org/10.3390/su15010497 |
| FullText URL | 00-鹿田遺跡目次等.pdf 01-鹿田遺跡16 第1章.pdf 02-鹿田遺跡16 第2章.pdf 03-鹿田遺跡第3章.pdf 04-鹿田遺跡第4章.pdf 05-鹿田遺跡第5章.pdf 06-鹿田遺跡遺構一覧表.pdf 07-鹿田遺跡-図版.pdf 08-鹿田遺跡オルソ図版一覧表.pdf 09-鹿田遺跡報告抄録.pdf |
|---|---|
| Author | Iwasaki, Shiho| 能城 修一| Oki, Yoko| 富岡 直人| （株）吉田生物研究所| パレオ・ラボAMS年代測定グループ| |
| Publication Title | 岡山大学構内遺跡発掘調査報告 |
| Published Date | 2022-03-28 |
| Volume | volume38 |
| language | Japanese |
| File Version | publisher |
| Pages | 134p. 図版2枚, 50, 5p |
| FullText URL | 00-鹿田遺跡目次等.pdf 01-鹿田遺跡14 第1章.pdf 02-鹿田遺跡14 第2章.pdf 03-鹿田遺跡第3章.pdf 04-鹿田遺跡第4章.pdf 05-表7.pdf 06-鹿田遺跡第5章.pdf 07-鹿田遺跡-図版.pdf 08-鹿田遺跡報告抄録.pdf |
|---|---|
| Author | Yamamoto, Etsuyo| Iwasaki, Shiho| Oki, Yoko| 藁科 哲男| |
| Publication Title | 岡山大学構内遺跡発掘調査報告 |
| Published Date | 2020-03-25 |
| Volume | volume36 |
| language | Japanese |
| File Version | publisher |
| Pages | 125p. 36図版 |
| FullText URL | 00-鹿田遺跡目次等.pdf 01-鹿田遺跡 第1章.pdf 02-鹿田遺跡 第2章.pdf 03-鹿田遺跡 第3章.pdf 04-鹿田遺跡 第4章.pdf 05-鹿田遺跡 第5章.pdf 06-鹿田遺跡遺構一覧表.pdf 07-鹿田遺跡-図版.pdf 08-鹿田遺跡報告抄録.pdf |
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| Author | Yamaguchi, Yuji| Minami, Kentaro| Iwasaki, Shiho| 渡辺 正巳| 能城 修一| Oki, Yoko| 江川 達也| |
| Publication Title | 岡山大学構内遺跡発掘調査報告 |
| Published Date | 2019-03-29 |
| Volume | volume35 |
| language | Japanese |
| File Version | publisher |
| Pages | 89p. 20図版 |
| FullText URL | iseki34.pdf iseki34_image.pdf |
|---|---|
| Author | Yamaguchi, Yuji| Iwasaki, Shiho| Nozaki, Takahiro| 高椋 浩史| 能城 修一| Oki, Yoko| 江川 達也| |
| Publication Title | 岡山大学構内遺跡発掘調査報告 |
| Published Date | 2018-03-30 |
| Volume | volume34 |
| language | Japanese |
| File Version | publisher |
| Pages | 105, 図版19 |
| FullText URL | iseki033.pdf iseki033_image.pdf |
|---|---|
| Author | Minami, Kentaro| Nozaki, Takahiro| 能城 修一| 江川 達也| 白石 純| Oki, Yoko| |
| Publication Title | 岡山大学構内遺跡発掘調査報告 |
| Published Date | 2018-02-28 |
| Volume | volume33 |
| language | Japanese |
| File Version | publisher |
| Pages | 97, 図版36 |
| FullText URL | iriseki_032.pdf iriseki_032_image.pdf |
|---|---|
| Author | Yamamoto, Etsuyo| 南 健太郎| 岩崎 志保| Yamaguchi, Yuji| 高椋 浩史| 能城 修一| 白石 純| Oki, Yoko| 江川 達也| 大久保 雅子| |
| Publication Title | 岡山大学構内遺跡発掘調査報告 |
| Published Date | 2017-03-21 |
| Volume | volume32 |
| language | Japanese |
| File Version | publisher |
| Pages | 249p. 47図版 |
| JaLCDOI | 10.18926/fest/54863 |
|---|---|
| Title Alternative | Evaluation of drop in official air temperature record at Okayama caused by relocation of observation field of Okayama Local Meteorological Observatory - By comparison with records observed at surrounding points - |
| FullText URL | fest_022_061_064.pdf |
| Author | Miura, Takeshi| Ueda, Yu| Morita, Hidenori| Chikamori, Hidetaka| Kurokawa, Masahiro| Nakashima, Yoshitaka| Oki, Yoko| |
| Abstract | Statistical change in official temperature records at Okayama City caused by relocation of meteorological observation field of Meteorological Agency was evaluated. The observation field of Okayama local meteorological observatory was moved to the Tsushima Campus of Okayama University from the downtown area of Okayama City in March, 2015. Comparison between the air temperature records measured at meteorological agency station and the records at Tanjo Pond in Tsushima Campus, showed 0.56 ℃ drop in annual average before and after relocation. Moreover, comparison between the records of Okayama local meteorological observatory and that at the surrounding meteorological observing 9 stations showed 0.55 ℃ drop in annual average. Those results suggest that the relocation dropped annual average of air temperature by about 0.6 ℃. |
| Keywords | Okayama Local Meteorological Observatory relocation drop in air temperature |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2017-03 |
| Volume | volume22 |
| Issue | issue1 |
| Start Page | 61 |
| End Page | 64 |
| ISSN | 2187-6940 |
| language | Japanese |
| File Version | publisher |
| NAID | 120005997444 |
| Author | 沖 陽子| |
|---|---|
| Published Date | 2012-02 |
| Publication Title | 環境制御 |
| Volume | volume33 |
| Content Type | Others |
| Author | 沖 陽子| |
|---|---|
| Published Date | 2010-12 |
| Publication Title | 環境制御 |
| Volume | volume32 |
| Content Type | Others |
| Author | 阿部 芳郎| 山本 悦世| 富樫 孝志| 河西 学| 藤原 宏志| 松谷 暁子| 沖 陽子| 橋本 雄一| |
|---|---|
| Published Date | 1994-03-31 |
| Publication Title | 岡山大学構内遺跡発掘調査報告 |
| Volume | volume7 |
| Content Type | Research Paper |
| Author | Oki, Yoko| |
|---|---|
| Published Date | 1991-12 |
| Publication Title | 環境制御 |
| Volume | volume13 |
| Content Type | Departmental Bulletin Paper |
| JaLCDOI | 10.18926/fest/19737 |
|---|---|
| FullText URL | 004_131_145.pdf |
| Author | Kamboh Maqsood Ahmed| Oki, Yoko| Adachi, Tadashi| Narioka, Hajime| |
| Abstract | A pot experiment was conducted to study the relative performance of IR 6,KS 282 and IR 10198-66-2 rice varieties cultivated under salt-affected conditions at EC of 6.0,9.0 12.0 dS m(-1) in a sandy clay loam soil havig ECe of 1.6 dS m(-1) treated as control. Six seedlings of 39-day old transplaned to each pot having 12 kg soil. The fertilizer as nitrophos and potassium sulphate at the rate of 57.0, 25.0 and 50.0 mg N,P and K kg(-1) soil respectively was applied at the time of transplanting while zinc sulphate at the rate of 5 mg Zn kg(-1) soil and 43.0 mg N kg(-1) of soil as additional dose were applied 19 and 30 days after transplanting respectively. Normal plant protection measures like number of tillers, panicles, paddy grains, filled and unifilled grains, yield per plant and sterility were recorded and shoot and straw samples were analysed for sodium, potassium, calcium and chloride contents. It was observed that growth and yield of all the varieties were reduced significantly with increasing soil salinity. Na/K and Na/Ca rations in shoot and straw increased significantly with increasing soil salinity. It was also observed that higher values of Na/K and Na/Ca rations in shoots affected growth parameters while higher values of these rations in straw affected yield components and grain yield. However, IR 6 having relatively lower values of Na/K and Na/Ca rations proved to be the most salt-tolerant rice among the three varieties studied. |
| Keywords | soil salinity growth and yield mineral compasition rice varieties |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 1999-02-26 |
| Volume | volume4 |
| Issue | issue1 |
| Start Page | 131 |
| End Page | 145 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002309142 |
| JaLCDOI | 10.18926/fest/12836 |
|---|---|
| FullText URL | 13_111_119.pdf |
| Author | Akhtar M.Shahbaz| Oki, Yoko| Adachi, Tadashi| |
| Abstract | To acclimate under orthophosphate (Pi) starved environment, plant species and cultivars display an elegant myriad of Pi-adaptive and rescue responses via reprioritizing internal Pi use and maximizing external Pi acquisition by reprogramming metabolism and restructuring root system architecture.Exploitation of considerable genetic diversity both between and within crop species and harnessing of these genetic variations can lead us to develop smart plants with improved P-acquisition, growth and yield under P-deprivation. To elucidate the effect of P-stress on plant growth, and P-efficiency under Pstarvation, 14 diverse Brassica cultivars were grown hydroponically in a climatically controlled chamber using sufficient (200 and 400 μM) and stress (10 and 20 μM) P-levels using ammonium phosphate (NH4H2PO4) as a P source. Cultivars showed differential growth behaviour in terms of biomass accumulation (shoot and root dry matter partitioning), percent distribution of Pi-concentration ([P]) and P-contents in plant parts (roots and shoots), and P-efficiency ratio (% PER)(relative shoot growth) indicating considerable genetic diversity among the tested Brassica cultivars. PER and the proportional increases in shoot dry matter (SDM) accumulation (SDMmax/SDMmin) in response to the P levels assisted in categorizing the cultivars into efficient and inefficient utilizers of the absorbed P from an ambient environment. Cultivars were classified into efficient responsive (ER), efficient non-responsive (ENR), non-efficient responsive (NER) and non-efficient non-responsive (NENR) by plotting ordination plots between PER and SDMmax/SDMmin under P-stress environment. Differential PER values at stress P levels corresponds to high P levels suggest that P efficiency mechanisms can be different from one cultivar to another within a give plant species and cultivars exhibiting high PER values are better choice to thrive under P-starvation. |
| Keywords | Brassica cultivars biomass and P-distribution P-contents P-efficiency ratio |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2008-03 |
| Volume | volume13 |
| Issue | issue1 |
| Start Page | 111 |
| End Page | 119 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002304774 |
| JaLCDOI | 10.18926/fest/11535 |
|---|---|
| FullText URL | 006_067_079.pdf |
| Author | Kamboh Maqsood Ahmed| Oki, Yoko| Adachi, Tadashi| |
| Abstract | The distribution on Ca, K, Na and Cl in root and leaves was studied in salt tolerant variety (Chikugo Izumi) and salt sensitive variety (PB-81) of wheat under saline conditions. The plants grown in 5% Hoagland's nutrient solution were subjected to 100 mM NaCl salinity for one week before observation with scanning electron microscope and analysis of selected samples with X-ray microanalyzer. Root growth was not affected in salt tolerant variety but reduced significantly in salt sensitive variety. Shoot growth was reduced in both varieties but much higher in salt sensitive variety. Salinity increased accumulation of Na and Cl in all root cells including vascular cells in salt sensitive variety. Salt tolerant variety not only reduced uptake of Na and Cl under saline conditions but also restricted their accumulation in cortex maintaining vascular cells relatively free of these ions. Salt sensitive variety failed to block transport of Na and Cl from root to leaves leading to much accumulation of these ions in leaves under salinity sterss. |
| Keywords | Ion distribution salinity salt tolerance wheat varieties X-ray microanalysis |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2001-02-28 |
| Volume | volume6 |
| Issue | issue1 |
| Start Page | 67 |
| End Page | 79 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313904 |
| JaLCDOI | 10.18926/fest/11534 |
|---|---|
| FullText URL | 007_099_106.pdf |
| Author | Kamboh Maqsood Ahmed| Oki, Yoko| Adachi, Tadashi| |
| Abstract | A few wheat varieties including two Japanese wheat varieties were evaluated for their salt tolerance at seeding stage, their behavior to increasing salinity levels and role of Na exclusion capacity in salt tolerance mechanisms. The wheat varieties were grown in nutrient solution and subjected to 0 (control), 25,75 and 125 mM NaCl salinity levels for 7 days. Although the shoot growth was reduced while Na contents were increased progressively with increasing salinity in all varieties, the varieties were quite different in their response. Salt tolerant va rieties maintained less reduction in their root and shoot growth and better water relations in their shoots than salt sensitive varieties under saline conditions. The wheat varieties were quite different in their Na exclusion capacity. Poor growth in salt sensitive varieties might be due to higher accumulation of Na in their shoots resulting from low Na exclusion capacity of roots, higher Na transport to shoot and/or inferior compartmentation capability. |
| Keywords | growth and mineral composition increasing salinity Na exclusion capacity salt tolerance wheat varieties |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2002-03-22 |
| Volume | volume7 |
| Issue | issue1 |
| Start Page | 99 |
| End Page | 106 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313704 |
| JaLCDOI | 10.18926/fest/11532 |
|---|---|
| FullText URL | 007_091_098.pdf |
| Author | Kamboh Maqsood Ahmed| Oki, Yoko| Adachi, Tadashi| |
| Abstract | To evaluate hypoxic-salinity tolerance in wheat varieties, three Japanese varieties (Nourin-61, Chikugo Izumi and Shirasagi Komugi, relatively salt tolerant) and one Pakistani variety (Blue Silver, relatively salt sensitive) were grown under control, hypoxia, saline and hypoxic-saline conditions. The results suggested that relatively hypoxia and salt tolerant variety Nourin-61 was capable of producing the highest relative shoot yield under combined stress conditions. On the other hand, relatively sensitive variety to both hypoxia and salinity conditions, could not withstand harmful effects of combined stress. A more close correlation of plant growth characters between salinity and hypoxic-salinity than hypoxia and hypoxic-salinity indicated that varieties with higher salt tolerance would suffer less than varieties with higher hypoxia tolerance under combined stress conditions. And the balance of Na/K ratio in shoot tissues seems to be the major evaluation factor as the tolerant variety when salinity and hypoxia stress occur together. |
| Keywords | hypoxia growth and ionic composition salinity salt tolerance wheat varieties |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2002-03-22 |
| Volume | volume7 |
| Issue | issue1 |
| Start Page | 91 |
| End Page | 98 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313980 |
| JaLCDOI | 10.18926/fest/11509 |
|---|---|
| Title Alternative | The Outline of Totaling Result of The Class Evaluation Questionnaire by Students in 2001 |
| FullText URL | 008_087_092.pdf |
| Author | Oki, Yoko| |
| Abstract | The committee of academic affairs of the Faculty of Environmental Science and Technology in 2001 planned and carried out "the class evaluation questionnaire survey by students" with original one. The committee has announced the totaling result of this survey, especially concerning both of the class evaluation and the self-estimation of student by themselves, in this paper. It is expected that these contents become the aid of the class improvement in near future. |
| Keywords | The class evaluation questionnaire students 2001 committee of academic affairs outline of totaling result |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2003-03 |
| Volume | volume8 |
| Issue | issue1 |
| Start Page | 87 |
| End Page | 92 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002313803 |
| JaLCDOI | 10.18926/fest/11454 |
|---|---|
| FullText URL | 012_107_117.pdf |
| Author | Akhtar M. Shahbaz| Oki, Yoko| Adachi, Tadashi| Khan Md. H. R.| |
| Abstract | Acclimation to orthophosphate (Pi) deprivation via highly coordinated Pi-starvation induced (PSI) classical mechanisms such as copious quantities of H(+) and carboxylates (OAs) exudation, remodeling and modification of root architecture by increasing structural and functional plasticity, enhanced uptake rate and increased synthesis of Pi transporters would reduce or eliminate our current overreliance on expensive, polluting, and nonrenewable Pi-fertilizers. These complicated but elegant morphological, physiological, biochemical and molecular adjustments of Pi-starved plants provide an excellent example of how the unique flexibility of plant metabolism and energy transduction helps them to cope in a typically stressful environment. Pi-starved roots possess enhanced H(+)-ATPase and PEPCase which could result in increasing H(+) efflux and OAs exudations in the root vicinity. This would lead to the rhizosphere acidification, which thereby contribute to the solublization and assimilation of mineral Pi from environment. To visualize the dissolution of sparingly soluble Ca-phosphate and rhizospheric pH changes (in situ), genetically diverse Brassica cultivars were grown on agar media. Newly formed Ca-phosphate was suspended in agar containing other essential nutriens. With NH(4)(+) applied as the N source, the precipitate dissolved in the root vicinity and this was ascribed to acidification. No dissolution was occurred with No(3)(-)-nutrition. In order to observe the pH changes at the media-root interface (rhizosphere), an image analysis was carried out after embedding the roots in agar containing bromocresol purple as pH indicator. Efficient cultivar 'Brown Raya' showed greater decrease in pH than P-inefficient 'B.S.A' in the culture media. Hydroponically grown cultivars were compared with respect to P-utilization efficiency (PUE), P-stress factor (PSF), and Ca- and P-uptake at P-starvation. PUE, and Ca- and P-uptake correlated significantly (P<0.01) with biomass accumulation, indicating that higher P-uptake of efficient cultivars was because of their higher Ca-uptake, which in turn was related to their better P-acquisition and PUE. Remodelling of root architecture of efficient cultivars helped the cultivars to establish a better rooting system, which provided basis for tolerance under P-starvation. |
| Keywords | Brassica Bromocresol purple H(+) -efflux Rhizospheirc pH changes and acidification PUE |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2007-03-15 |
| Volume | volume12 |
| Issue | issue1 |
| Start Page | 107 |
| End Page | 117 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313432 |
| JaLCDOI | 10.18926/fest/11450 |
|---|---|
| FullText URL | 012_099_106.pdf |
| Author | Akhtar M. Shahbaz| Oki, Yoko| Adachi, Tadashi| Khan Md. H. R| |
| Abstract | As a rule, ion uptake by plant cells and roots has features of saturation kinetics. This is in accordance with the assumption of control, as for example by the number of binding sites of ions (carriers, permeases), or the capacity of the proton efflux pumps, in the plasma membrane and tonoplast. Solute transport across membranes is carrier mediated transport. Protein macromolecules integrated into the membrane matrix seems to be the carriers. The carrier-mediated process is subject to kinetics assumig that the number of carriers (binding sites) in the membranes is limited. Kinetics of ion transport through a membrane is considered equivalent to relationship between an enzyme and its substrate. To obtain plants of different P status, two genetically diverse Brassica cultivars (P-tolerant 'Con-1' and P-sensitive 'Gold Rush') were grown for several weeks in nutrient solution culture media. P-uptake kinetics of the roots with intact plants in short-term experiments by monitoring P depletion in culture media revealed that P-tolerant 'Con-1' cultivar had favorable characteristics for P-uptake because of high I(max) or V(max) and low K(m) or 1/2 I(max) value than P-sensitive 'Gold Rush' cultivar. By plotting relative growth rate (RGR) and internal P-concentration (PNC) among P-tolerant (group I; Brown Raya, Con-1, Rainbow, Dunkled and Peela Raya) and P-sensitive (group II; Toria, Sultan Raya, B.S.A, Toria Selection and Gold Rush) cultivars revealed that group I cultivars showed large metabolic fraction and small structural fraction than group II cultivars which provided basis for P-stress tolerance. |
| Keywords | Brassica Membrane binding sites Carrier-mediated transport I(max) or V(max), K(m) Pi-uptake rate RGR |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2007-03-15 |
| Volume | volume12 |
| Issue | issue1 |
| Start Page | 99 |
| End Page | 106 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002314027 |
