The results were as follows: 1.Inoculated on the induction medium at the late uninucleate stage,the microspores could initiate embryogenesis by first divisions in both symmetric and asymmetric patterns,but the former was predominant.

通過觀察玉米小孢子胚胎發(fā)生的細胞形態(tài)學特征色色色AAAA，發(fā)現(xiàn)：離體培養(yǎng)條件下單核后期的花粉可以通過均等分裂和不均等分裂兩條途徑形成胚狀體，與前人的研究結果一致国产一区日韩。

Recombinant plasmid pSVH 7 DNA of avian influenza virus H7 subtype heamagglutinin gene was encapsulated with DC-chol/DOPE liposomes and PC/chol/SA liposomes separately. Two-week old SPF chickens were intramuscularly inoculated with 50 μ g/0.2ml of the liposome entrapped PSVH 7 DNA. Four-weeks later, each chicken was challenged with 0.1ml 〓 AIV . One week after the challenge, the secretion of the cloacas was collected and transfected to chicken embryos to isolate the virus. The virus was isolated from 6/6 of the control group, 1/6 of the naked DNA group, 1/6 of the PC/chol/SA entrapped DNA group and 0/6 of the DC-chol/DOPE liposome entrapped group. The HI antibody titers (log2) of the four groups were 6. 83±0.98, 7. 0±1. 26, 7. 83±1. 17 and 8. 00±0.89 respectively 1-week after challenge, and 8. 5±0.55, 8. 17±0.82, 8. 68±0.45 and 9. 33±0.54 respectively 2-week after challenge. The results showed that inoculation of liposome entrapped DNA significantly enhanced resistance to virosis in animals.

將含禽流感病毒H7亞型血凝素基因的重組質粒pSVH7用DC-chol陽離子脂質體和膽固醇／卵磷脂／十八胺脂質體包裹最近中文字幕无免费，免疫2周齡SPF雞，4周后用同型禽流感病毒進行人工感染www.黄色大片，1周后采集泄殖腔分泌物分離病毒www.cqmjzdh.com，結果未免疫組6／6分離到病毒，裸質粒DNA免疫組1／6分離到病毒膽固醇／卵磷脂／十八胺脂質體包裹DNA免疫組1／6分離到病毒殴美性爱肛交高清在线，DC-chol脂質體DNA免疫組沒有分離到病毒（0／6）：人工感染后1周各組的HI抗體（Log2）分別為6.38±0.98毛片一区网站，7.00±1.26，7.83±1.1791在线视频国产福利试看，8.00±0.8969网在线观看免费，2周后為8.50±0.5596在线精品视频免费观看，8.67±0.82，8.68±0.45日本在线一级特黄aa大片免费，9.33±0.52，脂質體包裹組在同期均高于未免疫組和裸DNA免疫組超碰欧美操屄屄在线，表明脂質體包裹質粒DNA免疫動物后开心五月天人人摸，能增加動物對病毒感染的抵抗力和反應能力。

This paper summarized factors, both in biologic and abiological aspects that affected successful colonization and activity of bacterial inoculation. The impacts of inoculated bacteria on population structure of specific rhizobacterial communities and environment should also be paid an eye on.

本文主要針對國內外在影響微生物根際定殖的因素以及影響引入微生物活性的因素兩方面的研究進行綜述青草娱乐视频，同時強調對接種劑引入所引起的生物種群及生態(tài)環(huán)境變化應予以重視久草免费在线视频观看。

The results showed that under 8% of raw total solids concentration, 6.8-7.4 of pH, the methane tank sludge, 20% of them inoculated, after 30 days of fermentation, it was 9 days of period that the effect was execellent. The total aerogenesis tolerance was 42490.70 mL, the day aerogenesis tolerance was 1416.36 mL, the pit held aerogenesis rate was 0.217 m~3/m~3·d , the stuff held aerogenesis rate was 0.241 m~3/m~3·d, the raw material aerogenesis rate was 0.090 m~3/kg·TS.

結果表明，在原料的總固體濃度為8％色呦呦免费看、pH值介于6.8～7.4五月丁香六月婷婷激情综合、接種沼氣池污泥量為原料干物質重量的20％、發(fā)酵周期為30d時性爱视频黄色，對發(fā)酵系統(tǒng)間隔9d換料的效果最好日韩精品深夜福利无码不卡，其在總產氣量、日均產氣量国产成在线观看免费视频app、池容產氣率91色色福利、料容產氣率和原料產氣率分別達到了42490.70mL、1416.36mL黄片免费理论、0.217m~3／m~3·d色就操在线视频、0.241m~3／m~3·d和0.090m~3／kg·TS，都比不換料的對照處理有很大提高欧美日韩ab一区，分別提高了153.41％玖久在线观看黄色网站免费、153.41％、152.33％性开放永久免费视频、153.68％和150％好吊丝袜免费观看视频，沼氣中的甲烷含量也在70％以上。

Methods The specimens were inoculated into amniotic and allantoic cavities of the embryonated chicken eggs for viral isolation.

病毒分離采用常規(guī)的雞胚雙腔接種欧美激情视频一区二区免费，毒株檢定用常量半加敏HI測定国产又色又猛又黄又大视频。

In order to discuss the optimal condition in which GPMV proliferates in chicken embryo and its pathogenicity, GPMV of different titer was inoculated into 911-day chicken embryo and the allantoic fluid was harvested after 36, 48, 60, 72 and 84 h, the HA titer was measured as well.

為了探討鵝副粘病毒在雞胚中增殖的最佳條件及其致病性，將不同血凝滴度的鵝副粘病毒分別接種于9~11日齡雞胚尿囊腔未满十八18禁止观看网站，收獲孵化36大学生美女一级片、48、60my国产精品免费、72和84 h的雞胚尿囊液超碰超碰超碰9在线巨乳，測定血凝滴度。

XRD, EDS, ETIR and SEM reveal the precipitate obtained from YN23-inoculated flasks to be a mixture of potassium jarosite and ammoniojarosite, with morphological features similar to the latter.

接種25h后天天婬色婬香综合网站日本，當Fe(上標 2+)氧化率達到90%時91大屁股合集，開始出現(xiàn)沉淀，pH也達到1.92的最高值；到第95h毛片A片在线，當沉淀累積到7.9gl^(-1)這一個毛片，時，沉淀反應停止国产三级精选国产麻豆，此時pH達到1.32的最低點深夜欧美日韩福利。

P. ussuriensis seedlings mixed with Amorpha fruticosa are inoculated by VA mycorrhizal fungi could make P.

大青楊與紫穗槐混交并接種叢枝菌根真菌后，可使大青楊根際營養(yǎng)&富集&91网黄色在线观看。

Ussuriensis seedlings mixed with Amorpha fruticosa are inoculated by VA mycorrhizal fungi could make P. ussuriensis rhizosphere nutrient enrichment.

大青楊與紫穗槐混交并接種叢枝菌根真菌后男人的天堂一级片，可使大青楊根際營養(yǎng)&富集&。

P. ussuriensis seedlings mixed with Amorpha fruticosa are inoculated by VA mycorrhizal fungi could make P. ussuriensis rhizosphere nutrient enrichment.

大青楊與紫穗槐混交并接種叢枝菌根真菌后丰满人妻中文字幕毛片，可使大青楊根際營養(yǎng)&富集&91精品99久久。