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7篇 您的检索式:作者名="Qingnan An"
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1Comparative analysis of symbiotic phenotypes of soybean ’’Tianlong 1’’ with two different rhizobia and co-inoculation at different developmental stages显示文摘Symbiotic nitrogen fixation between soybean and rhizobia, which directly catalyze reduction of atmospheric nitrogen into ammonia, has critical importance in agricultural economy and environment. However, soybean symbiotic nitrogen efficiency, which changes with growth stage, largely relies on symbiotic host-specificity and nodule development. In this report, symbiotic phenotypes of soybean ‘Tianlong 1’ with different inoculation (inoculated with Bradyrhizobium japonicum strain 113-2, Sinorhizobium fredii USDA205 and co-inoculated with 113-2 and USDA205) were comparatively studied at different developmental stages. Without additional nitrogen, chlorophyll content, above ground fresh weight,plant height, nodule number and nodule dry weight changed with different rhizobia at various developmental stages. 113-2 had more advantages than USDA205 in promoting plant growth and nodulation. Nodulation morphology of co-inoculation was more similar to 113-2 than USDA205. Competitive nodulation between two rhizobia promoted plant growth, which had significant agricultural application prospect. For the first time, this study provided evidence for co-inoculation with different rhizobia having positive effect on plant growth, and shed new light on the competitive relationship between different rhizobia.Rong Li Songli Yuan Haifeng Chen Chanjuan Zhang Limiao Chen Qingnan Hao Xiaojuan Zhang Zhihui Shan Zhonglu Yang Shuilian Chen Dezhen Qiu Xin’an Zhou 2017Oil Crop Science2017,2,3:1
2Herbivore defense responses and associated herbivore defense mechanism as revealed by comparing a resistant wild soybean with a susceptible cultivar显示文摘Plants have evolved sophisticated defense mechanisms against herbivores to help them adapt to the environment. Understanding the defense mechanisms in plants can help us control insects in a more effective manner. In this study, we found that compared with Tianlong 2(a cultivated soybean with insect susceptibility), ED059(a wild soybean line with insect resistance)contains sharper pubescence tips, as well as lower transcript levels of wound-induced protein kinase(WIPK) and salicylic acid-induced protein kinase(SIPK), which are important mitogen-activated protein kinases involved in early defense response to herbivores. The observed lower transcript levels of WIPK and SIPK induced higher levels of jasmonic acid(JA), JA biosynthesis enzymes(AOC3) and some secondary metabolites in ED059. Functional analysis of the KTI1 gene via Agrobacterium-mediated transformation in Arabidopsis thaliana indicated that it plays an important role in herbivore defense in ED059. We further investigated the molecular response of third-instar Helicoverpa armigera(Hübner) larvae to Tianlong 2 and ED059. We found apoptotic cells only in the midguts of larvae that fed on ED059. Compared with larvae reared on the susceptible cultivar Tianlong 2, transcript levels of catalase(CAT) and glutathione S-transferase(GST) were up-regulated, whereas those of CAR, CHSB, and TRY were down-regulated in larvae that fed on the highly resistant variety ED059. We propose that these differences underlie the different herbivore defense responses of ED059 and Tianlong 2.Xiaoyi Wang Haifeng Chen Zhihui Shan Qingnan Hao Chanjuan Zhang Zhonglu Yang Xiaojuan Zhang Songli Yuan Dezhen Qiu Shuilian Chen Yongqin Jiao Xin'an Zhou 2015The Crop Journal2015,3,6:1
3Symbiotic matching between soybean ‘Tianlong 1’ and rhizobia显示文摘‘Tianlong 1’ is widely popularized and applied with good comprehensive characters and is also good receptor for genetic transformation. However, little is known about symbiotic nitrogen fixation of ‘Tianlong 1’. In this report, 10 soybean rhizobia from different areas were selected to perform symbiotic matching test with ‘Tianlong 1’ in chamber. Two aboveground indicators (fresh weight aboveground and plant height) and 4 underground indicators (length of root, number of nodules, dry weight of root nodules per plant and morphology of nodules) were measured and data were statistically analyzed. Results showed that ‘Tianlong 1’ was a broad-hosted soybean which has different symbiotic matching abilities with these 10 rhizobia. Bradyrhizobium japonicum has more advantages than Sinorhizobium fredii in promoting plant growth and nodulation. 113-2 and 5036 were high effective strains. 113-2 was regarded as the most effective rhizobium matching to ‘Tianlong 1’ due to geographical advantages and adaptability. This research will promote symbiotic fixation of ‘Tianlong 1’ in agricultural industry for the first time.Rong Li Songli Yuan Haifeng Chen Chanjuan Zhang Limiao Chen Qingnan Hao Xiaojuan Zhang Zhihui Shan Zhonglu Yang Shuilian Chen Dezhen Qiu Xin’an Zhou 2017Oil Crop Science2017,2,2:1
4Pedigree analysis of nationally approved soybean cultivars from 1984 to 2013 and implications for breeding显示文摘Zhonglu Yang Xiaomin Guan Yanqin He Zhihui Shan Dezhen Qiu Xiaojuan Zhang Limiao Chen Chanjuan Zhang Songli Yuan Shuilian Chen Qingnan Hao Haifeng Chen Xin'an Zhou 2016Oil Crop Science2016,1,4:0
5On the Range of Certain ASH Algebras of Real Rank Zero显示文摘In this paper,the authors consider the range of a certain class of ASH algebras in[An,Q.,Elliott,G.A.,Li,Z.and Liu,Z.,The classification of certain ASH C^(*)-algebras of real rank zero,J.Topol.Anal.,14(1),2022,183–202],which is under the scheme of the Elliott program in the setting of real rank zero C^(*)-algebras.As a reduction theorem,they prove that all these ASH algebras are still the AD algebras studied in[Dadarlat,M.and Loring,T.A.,Classifying C^(*)-algebras via ordered,mod-p K-theory,Math.Ann.,305,1996,601–616].Qingnan AN Zhichao LIU 2023Chinese Annals of Mathematics,Series B2023,44,2:0
6Evaluation of seed vigor in soybean germplasms from different eco-regions显示文摘Seed vigor plays an essential role in soybean production.Soybean seed is sensitive to environment and easy to get seed deterioration.Generally soybean seed vigor can be maintained for less than one year and have to be multiplied every year.Varieties with good seed vigor are essential for maintaining planting population and stable yield.In this research,419 germplasms from three eco-regions,South China,Huanghuai region and Northeast China,were evaluated for seed vigor by assessing germination ratio,germination potential and germination index.About 34.8%of tested germplasm had germination ratio equal or more than 85%,suggested by the national soybean seed quality standard of China.Only 9 from 82 tested cultivars met the seed standard.Seed germination ratio distribution had obvious regional feature.Landraces performed better seed vigor than cultivars.Germplasms from South China had stronger seed vigor compared to those from Huanghuai and Northeast regions.Seed vigor has no significant relationship with maturity and 100-seed weight.Totally 21 germplasms with strong seed vigor,favor maturation and seed size were identified and can be used in future breeding program.Qingnan Hao Yanyan Yang Changxun Guo Xuefei Liu Haifeng Chen Zhonglu Yang Chanjuan Zhang Limiao Chen Songli Yuan Shuilian Chen Dong Cao Wei Guo Dezhen Qiu Xiaojuan Zhang Zhihui Shan Xin’an Zhou 2020Oil Crop Science2020,5,1:0
7On the classification of certain real rank zero C^(*)-algebras显示文摘In this paper,we give a classification of real rank zero C^(*)-algebras that can be expressed as inductive limits of a sequence of a subclass of Elliott-Thomsen algebras C.Qingnan An Zhichao Liu Yuanhang Zhang 2022Science China Mathematics2022,65,4:0
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