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31.
32.
Soe Toe Toe Thwe Thida Lay Aye Pwint Thu Myint Kyi Thar Lwin Than Than Thaung Ye Win Min Aye Aye Mitsui Shota Terahara Takeshi Endo Masato Yokota Masashi Rahman M. Moshiur Kobayashi Takeshi 《Fisheries Science》2021,87(3):311-320
Fisheries Science - The Silond catfish Silonia silondia, locally known as Nga Myin Yinn, is a commercially important fish in Myanmar; however, fundamental knowledge of its population structure is... 相似文献
33.
San San Yi Yukari Akashi Katsunori Tanaka Tin Tin Cho May Thin Khaing Hiromichi Yoshino Hidetaka Nishida Tatsuya Yamamoto Kyaw Win Kenji Kato 《Genetic Resources and Crop Evolution》2009,56(8):1149-1161
Genetic diversity of Myanmar melon was evaluated by analysis of 27 RAPD markers and morphological characters using 41 accessions
of melon landraces of which 36 accessions were small-seed type. The gene diversity was 0.239, higher than for group Conomon
from East Asia and equivalent to Indian melon populations. Melon accessions were classified into six major clusters. The largest
cluster IV comprised mainly group Conomon which was closely related to cluster V consisting of mainly group Agrestis. Most
of the accessions of group Cantalupensis were grouped into clusters II or VII and were distantly related to groups Conomon
and Agrestis. The genetic relationship to melon accessions from neighboring countries was analyzed. The 24 accessions of clusters
IV and V were mostly clustered together with small-seed type melon of India, but the 14 accessions of clusters VI and VII
were mostly clustered together with large-seed type melon of India. These results indicated that the genetic diversity of
Indian melon is conserved in Myanmar. Genetic introgression among melon groups through spontaneous hybridization was also
indicated and was considered important to maintain or increase the genetic diversity in Myanmar. 相似文献
34.
Nang Kyu Kyu Win Chang-Gi Back Young-Hwan Kim Hee-Young Jung 《Journal of General Plant Pathology》2012,78(1):73-76
In March 2011, witches’ brooms comprising many small shoots were observed on desert rose plants, Adenium obesum, in PyinOoLwin, Myanmar. The causal agent of the symptomatic leaves was diagnosed as a phytoplasma by polymerase chain reaction
(PCR) analysis. Sequence analysis of the PCR product (1.8 kbp) showed the closest phylogenic relationships with members of
the peanut witches’ broom phytoplasma group. Additionally, phylogenetic analyses revealed the phytoplasma is a member of ‘Candidatus Phytoplasma aurantifolia’. This is the first report of desert rose plant as a new host for ‘Ca. P. aurantifolia’. 相似文献
35.
Wargacki AJ Leonard E Win MN Regitsky DD Santos CN Kim PB Cooper SR Raisner RM Herman A Sivitz AB Lakshmanaswamy A Kashiyama Y Baker D Yoshikuni Y 《Science (New York, N.Y.)》2012,335(6066):308-313
Prospecting macroalgae (seaweeds) as feedstocks for bioconversion into biofuels and commodity chemical compounds is limited primarily by the availability of tractable microorganisms that can metabolize alginate polysaccharides. Here, we present the discovery of a 36-kilo-base pair DNA fragment from Vibrio splendidus encoding enzymes for alginate transport and metabolism. The genomic integration of this ensemble, together with an engineered system for extracellular alginate depolymerization, generated a microbial platform that can simultaneously degrade, uptake, and metabolize alginate. When further engineered for ethanol synthesis, this platform enables bioethanol production directly from macroalgae via a consolidated process, achieving a titer of 4.7% volume/volume and a yield of 0.281 weight ethanol/weight dry macroalgae (equivalent to ~80% of the maximum theoretical yield from the sugar composition in macroalgae). 相似文献
36.
The engineering of biological systems is anticipated to provide effective solutions to challenges that include energy and food production, environmental quality, and health and medicine. Our ability to transmit information to and from living systems, and to process and act on information inside cells, is critical to advancing the scale and complexity at which we can engineer, manipulate, and probe biological systems. We developed a general approach for assembling RNA devices that can execute higher-order cellular information processing operations from standard components. The engineered devices can function as logic gates (AND, NOR, NAND, or OR gates) and signal filters, and exhibit cooperativity. RNA devices process and transmit molecular inputs to targeted protein outputs, linking computation to gene expression and thus the potential to control cellular function. 相似文献
37.
This study focuses on the hydrolysis of terbufos, an organophosphorus pesticide. Combining GC-MS and wet chemistry methods, di-tert-butyl disulfide and formaldehyde were identified and quantified as major degradation products. Diethyl dithiophosphate was also indirectly identified as a degradation product under alkaline conditions. Hydrolysis rate constants of terbufos under homogeneous conditions were comparable to those of phorate and show relative insensitivity to pH under slightly acidic to neutral pH conditions, as the observed rate constants varied only in the range of (4.5-5.0) x 10(-6) s(-1) between pH 5.7 and 9.4; neutral hydrolysis is thus the most dominant hydrolysis pathway of terbufos in ambient waters. The mechanisms for terbufos hydrolysis and the formation of the major products and their temporal profiles are discussed. To assess the environmental impact of degradation products of this widely used pesticide, Microtox was used to analyze the toxicity of terbufos and two of its degradation products: diethyl dithiophosphate and di-tert-butyl disulfide; the EC(50) of terbufos was found to be >17 microM, whereas the EC(50) of di-tert-butyl disulfide was 1.3 microM. 相似文献
38.
“全国农业血防电脑应用与地理图形系统(NYXF)”是新兴科学领域内的一门新技术。它是电脑技术与卫生防疫,农业生态,畜牧兽医技术经济,农业技术经济,畜牧饲养和兽医等多种学科相结合,将管理,数据库,报表和图形等浑于一体,能进行农业血防管理技术经济若干指标体计算;可对农业血防开发项目投资效果提供动态数据,图表和辅助分析。并能将农业血防信息数据库与地理图形有机地结合在一起,从而打破了关系型数据库系统单纯依 相似文献
39.
Hui Win Wang Arild Sletten 《Acta Agriculturae Scandinavica, Section B - Plant Soil Science》2013,63(4):226-229
Abstract The effect of plant age on the development of bacterial wilt of forage grasses was studied by dipping cut roots of Lolinm perenne L. cv. ‘Svea’ in a suspension of Xanthomonas campestris pv. graminis. The effect of humidity on disease development was studied by cutting leaves with scissors dipped in inoculum, and by spraying inoculum onto unwounded leaves. Young plants were more susceptible to the pathogen than old ones. X.c.graminis was easily isolated from young leaves and tillers, especially from the leaf bases. Disease symptoms were most severe at low humidity. However, high humidity is necessary for infection to take place through stomata and hydathodes. 相似文献
40.
Critical thermal maxima (CTMax) and minima (CTMin) were determined for Prochilodus scrofa Steindachner of two sizes (19.5 ±7.2 g and 249 ± 42.4 g). acclimated at 15. 20, 25, 30 and 35 ± 1°C. The CTMax and the CTMin for the smaller fish were 33.9. 36.7. 38.7, 40.3. 42.0°C and 5.0, 7.2. 9.2. 10.3. 13.4oC and for the larger (Ish 33.3, 35.7, 38.2. 40.6. 42.6°C and 6.5, 8.2. 10.8. 12.4, 14.6°C. respectively, at each acclimation temperature. The CTMin from smaller fish were significantly lower than those from larger ones but the CTMax did not show any such difference. These results indicate that P. scrofa is suitable for culture in south-eastern and even in southern Brazil where winter temperatures may drop to very low levels, mainly at night. The zone of thermal tolerance calculated by CTMax and CTMin was equivalent to 1046°C2 and 964.2°C2, respectively, for smaller and larger fish, showing a high degree of eurythermicity. 相似文献