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  • 1
    Online Resource
    Online Resource
    River Basin Environment : Evaluation, Management and Conservation. (2022)
    Singapore :Springer,
    Details
    Keywords: Watershed management. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (356 pages)
    Edition: 1st ed.
    ISBN: 9789811940705
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=7079611
    DDC: 551.48
    Language: English
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  • 2
    Online Resource
    Online Resource
    River Basin Environment: Evaluation, Management and Conservation (2022)
    Singapore : Springer Nature Singapore | Singapore : Imprint: Springer
    Details Availability
    Keywords: Freshwater ecology. ; Marine ecology. ; Environmental management. ; Water. ; Hydrology. ; Pollution. ; Refuse and refuse disposal. ; Forestry.
    Description / Table of Contents: Chapter 1. Phenology of photosynthesis in a deciduous broadleaf forest: implications for the carbon cycle in a changing environment -- Chapter 2. Ecological significance of throughfall and stemflow to the carbon cycle in forest ecosystems -- Chapter 3.Forest carbon sequestration in mountainous region in Japan under ongoing climate change: implication for future research -- Chapter 4. Woody biomass change monitoring in temperate montane forests by airborne LiDAR analysis -- Chapter 5. Semi-natural grasslands maintained by controlled burning in Japan - Air and soil temperature and plant diversity -- Chapter 6. Detection and Identification of Phytophthora Pathogens That are Threatening Forest Ecosystems Worldwide -- Chapter 7. Water quality safety and security - from evaluation to control -- Chapter 8. Energy Recovery from Wastewater -- Chapter 9. Management of on-site household wastewater treatment systems (Johkasou) in Japan -- Chapter 10. Predicting fine sediment deposition rate in low-land river channel: Comparison of two adjacent rivers -- Chapter 11. Relationship between forest stand condition and water balance in a forested basin -- Chapter 12. Plant pathogenic oomycetes inhabiting river water are a potential source of infestation in agricultural areas -- Chapter 13. Soil contamination and conservation -- Chapter 14. Evaporation in arid regions -- Chapter 15. Feature Extraction and Analysis of Earthquake Motion -- Chapter 16. Involving the community to manage natural disasters: A study of Japanese disaster risk reduction practices.
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource(X, 356 p. 152 illus., 63 illus. in color.)
    Edition: 1st ed. 2022.
    ISBN: 9789811940705
    URL: https://doi.org/10.1007/978-981-19-4070-5
    DOI: 10.1007/978-981-19-4070-5
    Language: English
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  • 3
    Electronic Resource
    Electronic Resource
    Responses of cucumber cultivars to induction of systemic resistance against anthracnose by plant growth promoting fungi (1995)
    Springer
    European journal of plant pathology 101 (1995), S. 421-430 
    Details
    ISSN: 1573-8469
    Keywords: barley grain inoculum ; biological control ; Colletotrichum orbiculare ; potting medium ; Phoma sp. ; zoysiagrass rhizosphere fungi
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Initial experiment on the reactions of five Japanese cultivars of cucumber toColletotrichum orbiculare infection in the greenhouse revealed that cv Suyo and Gibai were susceptible and moderately susceptible, respectively, while cv Shogoin fushinari and Sagami hanjiro were resistant to infection byC. orbiculare; cv Ochiai fushinari was moderately resistant. The ability of 16 plant growth promoting fungi (some isolates belonged to species ofPhoma and some non-sporulating isolates) isolated from zoysiagrass rhizospheres to induce systemic resistance in the above five cucumber cultivars was tested by growing plants in potting medium infested with barley grain inocula of PGPF in the greenhouse. The second true leaves of 21-day-old plants were challenge inoculated withC. orbiculare and disease assessed. Nine, out of 16 isolates, caused significant reduction of disease caused byC. orbiculare in at least two cultivars.Phoma isolates (GS8-1 and GS8-2) and non-sporulating isolates (GU21-2, GU23-3, and GU24-3) significantly reduced the disease in all the five cultivars. The disease suppression in cucumber was due to the induction of systemic resistance, since the inducer(s) and the pathogen were separated spatially and that the inducer did not colonize aerial portions. The resistance induced by certain isolates in a susceptible cultivar was less than that in a resistant cultivar. Disease suppression caused by isolate GU21-2 was similar to theC. orbiculare induced control in certain cultivars. The average rate of expansion of lesion diameter on leaves due toC. orbiculare was slower due to induction with the selected plant growth promoting fungi compared to the uninduced control plants. Roots of four cultivars were colonized by only three isolates, however, roots of one cultivar (Suyo) was colonized by five isolates suggesting the cultivar-specific root colonization ability.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01874856
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  • 4
    Electronic Resource
    Electronic Resource
    Biocontrol ofRhizoctonia damping-off of cucumber by non-pathogenic binucleateRhizoctonia (1996)
    Springer
    European journal of plant pathology 102 (1996), S. 227-235 
    Details
    ISSN: 1573-8469
    Keywords: cucumber bioassay ; pre-incubation ; Rhizoctonia solani
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Three isolates of binucleateRhizoctonia (BNR) were tested for biological control of damping-off of cucumber seedlings caused byRhizoctonia solani AG 2-2 and AG 4. BNR isolates L2 (AG Ba) and W1 and W7 (AG A) provided protection of 58 to 71% against virulent isolate C4 of AG 4 and 64 to 75% protection against virulent isolate RH 65 of AG 2-2. Varying protection was provided to the seedlings by the BNR isolates against the virulentR. solani from the two AGs depending on their combination. The BNR isolates did not vary in providing protection to the seedling when tested against virulent C4 when both isolates were inoculated using three different methods,viz. in water agar, combination of water agar and soil and using soil alone. Protection of 58 to 71 % was provided by the isolates when inoculation was done on the hypocotyl using water agar, 62.8 to 75% using the combination of water agar and soil, and 75 to 85% when inoculation of both isolates was done in soil. Pre-incubation of BNR W7 or delayed inoculation of C4 (from 0.5 day to longer duration) using the different methods provided an increased protection to the seedlings to give complete inhibition of damping-off disease. Simultaneous inoculation of both BNR W7 and C4 using the three methods failed to provide protection to the seedlings. Among the BNR isolates, BNR W7 showed plant growth promotion in terms of significant increase in plant height (P=0.01) and fresh weight (P=0.05).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01877961
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  • 5
    Electronic Resource
    Electronic Resource
    Differentiation of Rhizoctonia AG-D Isolates from Turfgrass into Subgroups I and II Based on rDNA and RAPD Analyses (1999)
    Springer
    European journal of plant pathology 105 (1999), S. 835-846 
    Details
    ISSN: 1573-8469
    Keywords: turfgrass ; binucleate ; RFLP ; ITS
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Binucleate Rhizoctonia anastomosis group (AG) D is the cause of rhizoctonia-patch and elephant-footprint diseases of zoysiagrass, and winter-patch disease of bentgrass. Rhizoctonia AG-D is also known as the causal pathogen of other diseases such as sharp-eye-spot of cereals, foot-rot of cereals and winter-stem-rot of mat rush. Isolates of AG-D have been divided into the two subgroups AG-D (I) and AG-D (II), based on the results of cultural characteristics and pathogenicity tests. Isolates obtained from zoysiagrass exhibiting symptoms of rhizoctonia-patch disease, from bentgrass with winter-patch disease, from wheat with foot-rot disease, and from mat rush with winter-stem-rot disease were reported to belong to subgroup AG-D (I). On the other hand, isolates obtained from zoysiagrass with elephant-footprint disease were assigned to subgroup AG-D (II). To confirm the existence of these two subgroups in AG-D, the genetic structure of AG-D isolates from turfgrass and other crops was compared. RFLP analysis of the ITS region from rDNA after digestion with the restriction enzymes EcoRI, HaeIII, HhaI, HinfI, and MboI separated AG-D isolates into two groups corresponding to AG-D (I) and AG-D (II). Furthermore, other AGs except AG-Q (AGs-A, Ba, Bb, C, E, F, G, I, K, L, O, P, and R. solani AG1-IC) did not have the same patterns that were seen for the two AG-D subgroups. AG-Q isolates from bentgrass showed the same patterns as AG-D (I). The results of the RAPD analysis also revealed the existence of two groups that corresponded to AG-D (I) and AG-D (II). These analyses revealed that Rhizoctonia AG-D isolates from turfgrass could be divided into two subgroups consistent with those based on cultural characteristics and pathogenicity. In addition, isolates of foot-rot disease of wheat and isolates of winter-stem-rot disease of mat rush whose cultural characteristics were the same as those of AG-D (I) also showed similar RFLP and RAPD patterns to those of AG-D (I) isolates from turfgrass.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008736404263
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  • 6
    Electronic Resource
    Electronic Resource
    Influence of zoysiagrass rhizosphere fungal isolates on growth and yield of soybean plants (1995)
    Springer
    Mycoscience 36 (1995), S. 25-30 
    Details
    ISSN: 1618-2545
    Keywords: barley grain inoculum ; growth promotion ; soybean ; yield components ; zoysiagrass rhizosphere
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Among 21 rhizosphere fungi tested, eight sterile fungi and oneTrichoderma isolate (GT2-1) from zoysiagrass rhizosphere promoted the overall growth of soybean varieties when grown in the greenhouse. Out of nine effective isolates, GS7-4, GS8-2, GS8-3, GU23-3 (all sterile fungi) and GT2-1 (Trichoderma sp.) promoted plant growth and increased yield of Toyosuzu (variety 1) significantly, while GS8-3, GS10-1, GS10-2 (sterile fungi), and GT2-1 significantly caused plant growth promotion and yield increase of Kitamusume (variety 2). Among these efficient isolates, GS8-3 and GS10-2 induced considerable and consistent increases in length, biomass and yield of plants of varieties 1 and 2, respectively. In the field, however, only GS8-3 and GU23-3 among seven selected isolates, induced consistent and significant increases in plant growth and yield of varieties 1 and 2, while the ability of other isolates decreased. The plant growth promotion by these isolates in the field followed a similar trend to that in the greenhouse, but the effect was less marked. Some isolates which were effective in the greenhouse were less effective in the field. The degree of growth promotion by different isolates depended on the variety of soybean. The nutrient condition of soils used in experiments also seemed to play a vital role, since notable growth promotion by these isolates was observed in nutrient-depleted soil.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02268569
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  • 7
    Electronic Resource
    Electronic Resource
    Growth promotion ability of zoysiagrass rhizosphere fungi in consecutive plantings of wheat and soybean (1996)
    Springer
    Mycoscience 37 (1996), S. 163-168 
    Details
    ISSN: 1618-2545
    Keywords: consecutive planting ; Phoma sp. ; plant growth-promotion ; potting medium ; soybean ; wheat ; zoysiagrass rhizosphere fungi
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Several isolates ofPhoma sp., certain nonsporulating fungi, as well asPenicillium andTrichoderma, all isolated from zoysiagrass rhizosphere, promoted growth of wheat and soybean under greenhouse conditions. However, the ability of these rhizosphere fungi to enhance plant growth varied with the crop tested. For example, most of the fungi effectively promoted the growth of wheat, whereas only a few fungi were effective on soybean. In consecutive plantings of wheat and soybean grown in soil previously infested with these zoysiagrass rhizosphere fungi, the growth promotion ability of the fungi was lowered. However, addition of fresh potting medium appeared to restore their growth-promotive effects. It appears that the activation of plant growth-promoting fungi in soil might depend on the availability of organic substrates to colonize, as evidenced by the promotion of plant growth.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02461341
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  • 8
    Electronic Resource
    Electronic Resource
    Phylogenetic relationships ofPythium species based on ITS and 5.8S sequences of the ribosomal DNA (1999)
    Springer
    Mycoscience 40 (1999), S. 321-331 
    Details
    ISSN: 1618-2545
    Keywords: Chromista ; internal transcribed spacer ; phylogeny ; Pythium ; 5.8S rDNA
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The sequences of ITS regions in 30 species and two groups of the genusPythium were resolved. In the phylogenetic trees, the species were generally divided into two clusters, referred to here as the F and S groups. The species in the two groups correspond in terms of their sporangial morphology, with the F group being filamentous/lobulate and the S group being spherical. Genetic divergence within the F group was lower than that within the S group. Other morphological characteristics such as oogonial structure and sexual nature appeared to be unrelated to the groupings in these trees. An alignment analysis revealed common sequences to all the species and arrangements specific to each F or S group. It was found that the ITS region was a good target in designing species-specific primers for the identification and detection ofPythium species. In the tree based on 5.8S rDNA sequences, oomycetes are distantly related to other fungi but separated from algae in Chromista.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02463876
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  • 9
    Electronic Resource
    Electronic Resource
    Germination of surface-disinfected resting spores ofPlasmodiophora brassicae and their root hair infection in turnip hairy roots (2000)
    Springer
    Mycoscience 41 (2000), S. 49-54 
    Details
    ISSN: 1618-2545
    Keywords: hairy root ; Plasmodiophora brassicae ; root hair infection ; serial observation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Germination of surface-disinfected resting spores ofPlasmodiophora brassicae and its infection of turnip hairy root hairs were studied. Surface-disinfected resting spores showed higher germination than non-disinfected resting spores. Root hair infection was most frequent in the section of root formed 1 d before inoculation. Root hair infection began 4 d after inoculation, increased up to 6 d, and continued to increase more slowly until 10 to 12 d after inoculation. Growth ofP. brassicae in the root hair of hairy roots was observed serially. Most primary plasmodia differentiated to mature zoosporangia 8–10 d after inoculation. The secondary zoospores were initially released 6 d after inoculation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02464385
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