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991.
Linxue Shang Dandan Ma Sidan Hong Yu Zhao Guozhe Zhang Qingqing Ma Qun Wang Cuihua Gu 《Phyton》2022,91(12):2607-2617
Flower bud differentiation is a key component of plant blooming biology and understanding how it works is vital
for flowering regulation and plant genetic breeding, increasing the number and quality of flowering. Red soil is the
most widely covered soil type in the world, and it is also the most suitable soil type for crape myrtle planting. The
flower buds of crape myrtle (Lagerstroemia indica) planted in red soil were employed as experimental materials in
this study, and the distinct periods of differentiation were identified using stereomicroscopy and paraffin sectioning. We optimized the steps of dehydration, transparency, embedding, sectioning and staining when employing
paraffin sections. When seen under a microscope, this optimization can make the cell structure of paraffin sections obvious, the tissue structure complete, and the staining clear and natural. The flower bud differentiation
process is divided into 7 periods based on anatomical observations of the external morphology and internal structure during flower bud differentiation: undifferentiated period, start of differentiation period, inflorescence differentiation period, calyx differentiation period, petal differentiation period, stamen differentiation period, and pistil
differentiation period. The differentiation time is concentrated from the end of May to mid-June. Crape myrtle
flower bud differentiation is a complicated process, and the specific regulatory mechanism and affecting elements
need to be investigated further. 相似文献
992.
Gu Junfei Sun Ruolan Tang Decai Liu Fuyan Chang Xiangwei Wang Qiaohan 《Cell biology and toxicology》2022,38(4):679-697
Cell Biology and Toxicology - Colorectal cancer (CRC) is regarded as one of the commonest cancer types around the world. Due to the poor understanding on the causes of CRC formation and... 相似文献
993.
Yong Liang De-Yun Zhang Shuhong Ouyang Jingzhong Xie Qiuhong Wu Zhenzhong Wang Yu Cui Ping Lu Dong Zhang Zi-Ji Liu Jie Zhu Yong-Xing Chen Yan Zhang Ming-Cheng Luo Jan Dvorak Naxin Huo Qixin Sun Yong-Qiang Gu Zhiyong Liu 《TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik》2015,128(8):1617-1629
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995.
Development of a diagnostic co-dominant marker for stem rust resistance gene Sr47 introgressed from Aegilops
speltoides into durum wheat 总被引:1,自引:0,他引:1
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1000.
Zhiyao Luo Ganyu Gu Amber Ginn Mihai C. Giurcanu Paige Adams George Vellidis Ariena H. C. van Bruggen Michelle D. Danyluk Anita C. Wright 《Applied and environmental microbiology》2015,81(13):4376-4387
Irrigation water has been implicated as a likely source of produce contamination by Salmonella enterica. Therefore, the distribution of S. enterica was surveyed monthly in irrigation ponds (n = 10) located within a prime agricultural region in southern Georgia and northern Florida. All ponds and 28.2% of all samples (n = 635) were positive for Salmonella, with an overall geometric mean concentration (0.26 most probable number [MPN]/liter) that was relatively low compared to prior reports for rivers in this region. Salmonella peaks were seasonal; the levels correlated with increased temperature and rainfall (P < 0.05). The numbers and occurrence were significantly higher in water (0.32 MPN/liter and 37% of samples) than in sediment (0.22 MPN/liter and 17% of samples) but did not vary with depth. Representative isolates (n = 185) from different ponds, sample types, and seasons were examined for resistance to 15 different antibiotics; most strains were resistant to streptomycin (98.9%), while 20% were multidrug resistant (MDR) for 2 to 6 antibiotics. DiversiLab repetitive extragenic palindromic-element sequence-based PCR (rep-PCR) revealed genetic diversity and showed 43 genotypes among 191 isolates, as defined by >95% similarity. The genotypes did not partition by pond, season, or sample type. Genetic similarity to known serotypes indicated Hadar, Montevideo, and Newport as the most prevalent. All ponds achieved the current safety standards for generic Escherichia coli in agricultural water, and regression modeling showed that the E. coli level was a significant predictor for the probability of Salmonella occurrence. However, persistent populations of Salmonella were widely distributed in irrigation ponds, and the associated risks for produce contamination and subsequent human exposure are unknown, supporting continued surveillance of this pathogen in agricultural settings. 相似文献