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Analysis of changes in the Panax notoginseng glycerolipidome in response to long-term chilling and heat

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Plant Diversity 2020年第2期42卷 102-110页

作者： Tao Liu Jia Chen Furong Xu Xiahong He Shengchao Yang youyong zhu Weiqi Li Guowei Zheng National&Local Joint Engineering Research Center on Germplasm Utilization&Innovation of Chinese Medicinal Materials in Southwest China Yunnan Agricultural UniversityKunmingChina Yunnan Key Laboratory of Dai and Yi Medicines Yunnan University of Chinese MedicineKunmingChina College of Chinese Material Medica Yunnan University of Chinese MedicineKunmingChina Germplasm Bank of Wild Species Kunming Institute of BotanyChinese Academy of SciencesKunmingChina

Long-term moderately high or low temperatures can damage economically important *** the present study,we treated Panax notoginseng,an important traditional Chinese medicine,with temperatures of 10,20,and 30℃for 30 *** then investigated *** glycerolipidome responses to these moderate temperature stresses using an ESI/MS-MS-based lipidomic *** long-term chilling(LTC,10℃)and long-term heat(LTH,30℃)decreased photo pigment levels and photosynthetic ***-induced degradation of photo pigments and glycerolipids may further cause the decline of photosynthesis and thereafter the senescence of ***-induced photosynthesis decline is attributed to the degradation of photo synthetic pigments rather than the degradation of chloroplastidic *** has an especially high level of lysophosphatidylglycerol,which may indicate that either *** phospholipase A acts in a special manner on phosphatidylglycerol(PG),or that phospholipase B *** ratio of sulfoquinovosyldiacylglycerol(SQDG)to PG increased significantly after LTC treatment,which may indicate that SQDG partially substitutes for *** LTC treatment,the increase in the degree of unsaturation of plastidic lipids was less than that of extraplastidic lipids,and the increase in the unsaturation of PG was the largest among the ten lipid classes *** results indicate that increasing the level of unsaturated PG may play a special role in maintaining the function and stability of *** photosystems after LTC treatment.

关键词： Extraplastidic lipids Glycerolipidome Long-term chilling stress Long-term heat stress Panax notoginseng Plastidic lipids

Colonization of endophyte Acremonium sp. D212 in Panax notoginseng and rice mediated by auxin and jasmonic acid

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Journal of Integrative Plant Biology 2020年第9期62卷 1433-1451页

作者： Li Han Xuan Zhou Yiting Zhao Shusheng zhu Lixia Wu Yunlu He Xiangrui Ping Xinqi Lu Wuying Huang Jie Qian Lina Zhang Xi Jiang Dan zhu Chongyu Luo Saijie Li Qian Dong Qijing Fu Kaiyuan Deng Xin Wang Lei Wang Sheng Peng Jinsong Wu Weimin Li JiǐíFriml youyong zhu Xiahong He Yunlong Du College of Plant Protection Yunnan Agricultural UniversityKunming 650201China State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan Yunnan Agricultural UniversityKunming 650201China Key Laboratory of Agro-Biodiversity and Pest Management of Education Ministry of China Yunnan Agricultural UniversityKunming 650201China Industrial Crop Research Institute Shanxi Academy of Agricultural SciencesFenyang 032200China Department of Steering Committee Yunnan Agricultural UniversityKunming 650201China Yunnan Key Laboratory for Wild Plant Resources Kunming Institute of BotanyChinese Academy of SciencesKunming 650201China Mengzi Seed Management Station Mengzi 661199China Institute of Science and Technology Austria(IST Austria) KlosterneuburgAustria College of Horticulture and Landscape Southwest Forestry UniversityKunming 650224China

Endophytic fungi can be beneficial to plant growth. However, the molecular mechanisms under-lying colonization of Acremonium spp. remain unclear. In this study, a novel endophytic Acremonium strain was isolated from the buds of Panax notoginseng and named Acremonium sp. D212. The Acremonium sp. D212 could colonize the roots of P. notoginseng, enhance the resistance of P. notoginseng to root rot disease, and promote root growth and saponin bio-synthesis in P. notoginseng. Acremonium sp. D212 could secrete indole-3-acetic acid (IAA) and jasmonic acid (JA), and inoculation with the fungus increased the endogenous levels of IAA and JA in P. noto-ginseng. Colonization of the Acremonium sp. D212 in the roots of the rice line Nipponbare was dependent on the concentration of methyl jasmonate (MeJA) (2–15μmol/L) and 1-naphthalenacetic acid (NAA) (10–20μmol/L). Moreover, the roots of the JA signaling-defective coi1-18 mutant were colonized by Acremonium sp. D212 to a lesser degree than those of the wild-type Nipponbare and miR393b-overexpressing lines, and the colonization was res-cued by MeJA but not by NAA. It suggests that the cross-talk between JA signaling and the auxin biosynthetic pathway plays a crucial role in the colonization of Acremonium sp. D212 in host plants.

关键词： roots endogenous expressing

滇西北地区裸子植物多样性的地理分布格局及其与区系分化之间的关系

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生态环境学报 2010年第4期19卷 830-835页

作者：冯建孟朱有勇大理学院生命科学与化学学院云南大理671000 云南农业大学农业生物多样性应用技术国家工程研究中心云南昆明650201 农业生物多样性和病虫害控制教育部重点实验室云南昆明650201

研究利用大尺度的物种分布信息,探讨了长江上游滇西北地区裸子植物多样性的地理分布格局及其与区系分化之间的关系。结果表明,在属和种的水平上,裸子植物的多样性从南到北呈递增趋势,但在科的水平上无明显变化趋势。在科和属的水平上,... 详细信息

研究利用大尺度的物种分布信息,探讨了长江上游滇西北地区裸子植物多样性的地理分布格局及其与区系分化之间的关系。结果表明,在属和种的水平上,裸子植物的多样性从南到北呈递增趋势,但在科的水平上无明显变化趋势。在科和属的水平上,裸子植物的区系分化强度随着纬度的升高呈递增趋势。较高的裸子植物多样性和区系分化强度主要出现在北部地区。区系分化强度与表征地形复杂度的单位面积海拔高差之间存在显著的相关性。区系分化强度明显影响研究区域内裸子植物多样性的地理分布格局,这可能与地质历史上滇西北地区地层的差异性抬升和地形格局有关。

关键词：多样性地理分布格局区系分化裸子植物滇西北地区

云南地区种子植物区系属的多度及区系过渡性的空间分布格局

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生态环境学报 2010年第1期19卷 123-130页

作者：冯建孟朱有勇大理学院生命科学与化学学院云南大理671000 云南农业大学农业生物多样性应用技术国家工程研究中心云南昆明650201 云南农业大学农业生物多样性和病虫害控制教育部重点实验室云南昆明650201

植物区系地理分布格局的研究有助于更好地理解植物区系的起源、迁移和分化。研究利用覆盖云南地区全境的植物区系分布信息,探讨了云南地区植物区系属的多度及区系过渡性的地理分布格局。结果表明,所有热带区系属的多度均随着纬度升高呈... 详细信息

植物区系地理分布格局的研究有助于更好地理解植物区系的起源、迁移和分化。研究利用覆盖云南地区全境的植物区系分布信息,探讨了云南地区植物区系属的多度及区系过渡性的地理分布格局。结果表明,所有热带区系属的多度均随着纬度升高呈递减趋势;大多数温带区系属的多度随着纬度的升高呈递增趋势。中亚分布(T13)属的多度的高值主要出现在滇西北地区,尤其是在金沙江、澜沧江和怒江的上游地区,但在其它地区十分少见。地中海、西亚至中亚分布(T12)属的多度的高值也出现在滇西北地区,但在其它地区无明显空间分布规律;中国特有分布(T15)属在滇西北地区最为丰富,其次是滇东南地区,大致以"田中线"为界,界线以西地区的中国植物特有属的多度明显低于界线以东地区。从南到北,植物区系过渡性基本上呈单调递增格局,这一格局的形成可能与区系成分的迁移和地形格局有关。大理州以南的低海拔地区,热带区系成分占据主导地位,并占据了云南大部分的土地面积,这在一定程度上证实了云南地区总体上是一个"热带山原"的假说。本研究与其它研究的不同可能源于与源数据和取样尺度的差异。

关键词：种子植物区系属的多度区系过渡性分布格局云南地区

云南地区种子植物东亚分布成分的地理分布格局

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生态环境学报 2009年第6期18卷 2249-2253页

植物区系分析是理解植被起源、性质和分布的基础。本研究利用大尺度的区系分布信息,结合地理信息系统平台和统计分析方法,探讨了云南地区种子植物东亚分布成分的地理分布格局以及"田中线"的生物地理意义。结果表明,东亚分布成分及其亚... 详细信息

植物区系分析是理解植被起源、性质和分布的基础。本研究利用大尺度的区系分布信息,结合地理信息系统平台和统计分析方法,探讨了云南地区种子植物东亚分布成分的地理分布格局以及"田中线"的生物地理意义。结果表明,东亚分布成分及其亚型所占比重均随着纬度的升高呈递增趋势。在经度梯度上,中国—日本植物分布亚型所占的比重从东到西呈递减趋势,而中国—喜马拉雅分布亚型所占比重的经度格局则与此相反。东亚分布成分在云南地区的扩散方向以由北到南为主,其次为经度梯度上的双向迁移。与过去的研究不同,本研究结果表明,东亚分布成分在云南地区的起源中心更可能为滇西北。我们未能证实"田中线"对中国—喜马拉雅分布亚型的分布具有限制意义,但对东亚分布成分(总体)和中国—日本分布亚型在云南地区的分布具有严格的限制意义。

关键词：东亚分布地理分布格局起源中心田中线云南

Priming maize resistance by its neighbours: activating 1,4-benzoxazine-3-ones synthesis and defence gene expression to alleviate leaf disease

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Priming maize resistance by its neighbours: activating 1,4-b...

Effects of Different Cultivation Patterns of Wheat on Population Structure of Puccinia striiformis West.f. sp. tritici

中国第七届植物化感作用学术研讨会

作者： Xupo Ding Bingbing Jiang Min Yang Huichuan Huang Youcong Chuan Xiahong He Chengyun Li youyong zhu Shusheng zhu Key Laboratory of Agro-Biodiversity and Pest Management of Education Ministry of China Yunnan Agricultural University

Modern agricultural monocultures are highly productive but are usually vulnerable to disease, insects and climatic anomalies. Increasing plant diversity in an ecosystem could augment its stability and avoid its vulnerability to biotic and abiotic stresses. Intercropping, which is the intermingled growth of two or more crops, is an important style to increase crop diversity in agricultural system1]. Plant disease was effectively suppressed in the maize and pepper intercropping system. Our previous study demonstrated that the presence of neighbouring maize plants can restrict the spread of soil-borne pathogens of pepper plants by secreting defence compounds into the soil. However, whether maize can receive benefits from its neighbouring pepper plants in an intercropping system is unknown. Here, we examined the effects of maize roots treated with elicitors from the pepper blight pathogen Phytophthora capsici(spore suspension, spore lysis suspension, and spore culture suspension) and pepper root exudates(healthy and nosogenic pepper root exudates). Southern corn leaf blight(SCLB) causing by Bipolaris maydis was found to be signif icantly reduced after the five above treatments. Maize roots treated with the elicitors from P. capsici and root exudates up-regulated DIBOA, DIMBOA, and MBOA and the expression levels of BX synthesis genes Bx1 and Bx9 in maize roots and shoots. DIMBOA and MBOA effectively inhibited the mycelium growth of B. maydis at physiological concentrations in maize shoots. Further study suggested that the ABA and S A pathways were activated by elicitors from the P. capsici or pepper root exudates, respectively. In addition, the JA pathway in maize crown roots and shoots could be induced at 12 hours after pepper root exudates treatment. Combined with our previous data, our findings suggest that maize plants help pepper to restrict the spread of P. capsici in the field and that pepper can help maize to prime the resistance against leaf disease infection di

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Plant Diseases and Pests 2014年第2期5卷 22-24,34页

作者： Li Jinbin Liu Lin Yang Jing Lan Mingqing Chen Mengqi Yang Jincheng Chen Xiangdong Li Yueqiu zhu youyong Li Chengyun Agricultural Environment and Resources Research Institute Yunnan Academy of Agricultural Sciences The Ministry of Education Key Laboratory for Agricultural Biodiversity and Pest Management Yunnan Agricultural University Academy of Agricultural Sciences of Yuxi City Extension Station of Agricultural Technologies of Yimen County Quarantine and Plant Protection Station of Dali Prefecture

The paper was to study the effects of different cultivation patterns( mix cultivation and monocultivation) of wheat on population structure of Puccinia striiformis West. f. sp. tritici in the fields. Five race-specific-markers( CY32,CY31,CY29,CY23 and Shuiyuan pathotype) were used to survey 113 infected samples collected from two cultivation patterns. The results indicated that frequency of race-specific-markers under monocultivation was higher than that under mix cultivation; the dominant race-specific-markers were CY32 and CY29 under monocultivation,and the frequency of detection were 81. 5% and 78. 5%,respectively. The dominant race-specific-markers were CY29 and Shuiyuan pathotype under mix cultivation,and the frequency of detection are 41. 7% and 18. 8%,*** race-specific-markers were detected in single infected leaf,and 41. 7% of infected single leaf were detected with more than two race-specific-markers,58. 3% of infected single leaf were detected with one race-specific-marker under mix cultivation pattern,while there were 75. 0% infected leaves with more than two race-specific-markers and 25. 0% infected single leaf detected with one race-specific-marker under monocultivation pattern. The results indicated that mix cultivation pattern of wheat can reduce races on single leaf,affect the distribution of races in infected leaves,and suppress the occurrence frequency of dominant races of P. striiformis in the fields significantly,subsequently reduced severity and prevalence of the disease.

关键词： Puccinia striiformis f.sp.tritici Race Molecular detection Race-specific-marker Cultivation pattern

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水稻稃面双峰乳突研究方法改进

实验技术与管理 2010年第9期27卷 46-48页

作者：高东何霞红朱有勇云南农业大学农业生物多样性应用技术国家工程研究中心农业生物多样性控制病虫害教育部重点实验室云南省植物病理重点实验室

水稻稃面双峰乳突扫描电镜图片对水稻分类和古栽培稻研究具有重要意义。常规方法是将整粒粘于样品台,样品台倾斜60°角,电镜扫描拍照。该研究的改进方法,不仅方便扫描、容易聚集、加大倾斜角;而且能将立体三维乳突有效向平面二维转变,... 详细信息

水稻稃面双峰乳突扫描电镜图片对水稻分类和古栽培稻研究具有重要意义。常规方法是将整粒粘于样品台,样品台倾斜60°角,电镜扫描拍照。该研究的改进方法,不仅方便扫描、容易聚集、加大倾斜角;而且能将立体三维乳突有效向平面二维转变,减小了测量数据的系统误差。

关键词：水稻稃壳双峰乳突扫描电镜改进方法

Few-shot incremental radar target recognition framework based on scattering-topology properties

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Chinese Journal of Aeronautics 2024年第8期37卷 246-260页

作者： Chenxuan LI Weigang zhu Bakun zhu Yonggang LI Graduate School Space Engineering UniversityBeijing 101400China Department of Electronic and Optical Engineering Space Engineering UniversityBeijing 101400China

The continuous emergence of new targets in open scenarios leads to a substantial decrease in the performance of Inverse Synthetic Aperture Radar(ISAR)recognition ***,data scarcity further exacerbates the challenge of identifying new classes of ISAR *** this paper,a few-shot incremental target recognition framework based on Scattering-Topology Properties(STPIL)is ***,STPIL extracts scattering-topology properties of ISAR targets as recognition ***,the pseudo-incremental training strategy effectively alleviates the algorithm’s forgetting of old knowledge,and improves compatibility with new ***,a feature embedding network,with few parameters,is designed based on the graph neural *** embedding network is highly adaptable to changes in data ***,STPIL fully considers the joint distribution and marginal distribution in scattering features,and uses the Brownian distance metric module to make the scattering-topology features more *** results on both the simulation dataset and the public measured data indicate that STPIL can effectively balance new classes with old classes,and has superior performance to other advanced methods in the incremental recognition of targets.

关键词： Brownian distance metric Graph neural networks Incremental learning Inverse Synthetic Aperture Radar(ISAR) Scattering