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A novel seed cone of Pinus from the Miocene of coastal Southeast China indicates kinship with Southeast Asian pines

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Plant Diversity 2023年第6期45卷 732-747页

作者： Xiang-Chuan Li Yi Hu Xiang Zhang Liang Xiao Li-Na Liang Rui-Zhi Zhang Lei Qiao School of Earth Sciences and Resources Chang'an UniversityXi'an 710054China State Key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and PalaeontologyChinese Academy of SciencesNanjing 210008China Shaanxi Key Laboratory of Early Life and Environments Northwest UniversityXi'an 710069China Exploration company Shaanxi Yanchang Petroleum(Group)Co.LTD.Yan'an 716099China Beijing Youth Education SciTech Co. LTD.Beijing 100089China

Pinus is an economically and ecologically important genus whose members are dominant components globally in low-latitude mountainous and mid-latitude temperate *** species richness is currently concentrated in subtropical mid-low latitudes of the Northern Hemisphere,differing from the latitudinal diversity gradient mostly recognized in woody *** the present pattern was developing in Earth's past is still poorly studied,particularly in eastern ***,a new fossil species,Pinus shengxianica *** described based on a fossil seed cone from the Late Miocene Shengxian Formation in Zhejiang,southeast China.A co-occurring cone is recognized as a known fossil species,Pinus speciosa *** comparison of extant and fossil members of Pinus suggests *** shares a striking cone similarity to Pinus merkusii and Pinus latteri(subsection Pinus)from tropical Southeast Asia in having annular bulges around the umbo on the *** morphological resemblance indicates these two extant low-latitude pines probably possess a close affinity with the present newly-discovered *** and originated from East Asian mid-low latitude ancestors during this generic re-diversification in the *** scenario is consistent with the evolutionary trajectory reflected by the pine fossil history and molecular data,marking the Miocene as a key period for the origin and evolution of most extant pines *** co-occurrences of diverse conifers and broadleaved angiosperms preferring diverse niches demonstrate Late Miocene eastern Zhejiang was one of the hot spots for coniferophyte diversity and hosted a needled-broadleaved mixed forest with complex vegetation structure and an altitudinal zonation.

关键词： Fossil cones Pinus Southeast China Miocene Phytogeography Paleoecology

Interaction between Soybean Cultivars and seed Density

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American Journal of Plant Sciences 2015年第9期6卷 1425-1434页

作者： Igor Oliveri Soares Pedro Milanez de Rezende Adriano Teodoro Bruzi Alan Mario Zuffo Everton Vinicius Zambiazzi Vanoli Fronza Cícero Monti Teixeira Department of Agriculture Federal University of Lavras (UFLA) Lavras Brazil Brazilian Agricultural Research Corporation (Embrapa-Soja) Londrina Brazil Agricultural Research company of Minas Gerais (Epamig) Uberaba Brazil

Plant, environmental conditions and management type will determine final crop yield. Enhanced yield can be reached by using well-adapted and potentially productive genotypes;all of them ally to crop cultural practices and management. Among these, seed density stands out, once it interferes with plant morphology and competition for water and nutrients. Thus, this study aimed to evaluate the effect of varied seed densities on agronomic traits in soybean, besides identifying cultivars with wide adaptability to different environments and seed densities. Six soybean cultivars were assessed under four seed densities (100, 200, 300 and 400 thousand plants·ha-1), in nine different environments from Minas Gerais State, Brazil. The experimental design was a completely randomized block design with three replications. The BRSMG 760SRR and BRSMG 820RR cultivars had the best average performance independent of the environments and seed densities. The seed density of 300 thousand plants per hectare showed to be as the most adequate for soybean cultivation on the evaluated environments. Furthermore, seed density interacted with the agronomic traits in soybean.

关键词： Glycine max L. Merrill Genotypes Yield Plant Population

Visible-Light Photocatalytic Activity of TiO_(2) Nanorods and Its Application to Degrading Organic Pollutants

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China Petroleum Processing & Petrochemical Technology 2022年第2期24卷 138-146页

作者： He Jie Shi Chaojie Yang Zhengchun Hou Qiang Zhang Rui Zhu Tianjia Pan Peng Zhang Ping School of Integrated Circuit Science and Engineering Advanced Materials and Printed Electronics CenterTianjin Key Laboratory of Film Electronic&Communication DevicesTianjin University of TechnologyTianjin 300384 Department of Chemical Industry SINOPEC Tianjin CompanyTianjin 300271 Department of Electronics Nankai UniversityTianjin 300350 School of Electrical and Information Engineering and Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of Education Tianjin UniversityTianjin 300072

Fluorine-doped tin oxide(FTO)/TiO_(2) seed layer/TiO_(2) nanorods were prepared by ion-beam deposition and hydrothermal *** UV light,the photocurrent density of these nanorods was found to reach 1.39 mA/cm^(2),which was higher than that without the seed layer and nanorod ***,the FTO/TiO_(2) seed layer/TiO_(2) nanorods can also absorb visible light,overcoming a notable problem with standard TiO_(2).The photocurrent density of the FTO/TiO_(2) seed layer/TiO_(2) nanorods was found to reach 0.21 mA/cm^(2) under visible *** high-performance results from the deposition of the TiO_(2) seed layer,which reduces the band gap of TiO_(2).The FTO/TiO_(2) seed layer/TiO_(2) nanorods also exhibited high photodegradation ability for the organic pollutant methylene blue(MB).Within 120 min,77.3%of the MB was found to have been degraded,and the degradation rates remained almost unchanged after four cycles with the same catalyst ***,compared with powdered photocatalysts,the FTO/TiO_(2) seed layer/TiO_(2) nanorod sample is easy to recover,requiring only rinsing with water and natural drying after the reaction.

关键词： TiO_(2)nanorods photocatalysis visible light photodegradation

An improved high-oleic line created by chemical mutagen of ‘Huayu 40’

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Oil Crop Science 2019年第1期4卷 47-54页

作者： Xiuzhen Wang Weiguang Ning Quanxi Sun Yueyi Tang Zhiwei Wang Yongshan Wan Fengzhen Liu Zubo Du Feng Liu Qi Wu Chuantang Wang Shandong Peanut Research Institute (SPRI) State Key Laboratory of Crop Biology Shandong Key Laboratory of Crop Biology Shandong Agricultural University Qingdao Agricultural Science and Technology Service Center Luhua Group company

By using chemical mutagenesis, ‘Huayu 40’, a normal-oleic(NO) large-seed high yielding peanut cultivar with wide adaptability was transformed into mutants with desirable high-oleic(HO) quality traits, comparable productivity and adaptability. Of the 3 chemical treatments, viz. 5 mM ethyl methane sulfonate(EMS), 25 mM EMS and 15 mM sodium azide(NaN_3), only NaN_3 produced HO M_2 mutant plants. High oleate phenotype was initially identified by near infrared spectroscopy(NIRS) screening, and was further confirmed by gas spectrometry(GC) analysis. Sequence analysis showed that HO plant had a 448 G>A mutation in FAD2 A and a 441_442 insA mutation in FAD2 B, respectively. Although the direct use of high yielding and stress resistant cultivars/lines to induce quality mutations might be a judicious choice to accelerate breeding, our results showed that chemical mutagenesis could quickly create HO peanut materials and expand the genetic bases of HO peanuts.

关键词： high oleic peanut chemical mutant FAD2A FAD2B

Germplasm resources of three wood plant species enriched with nervonic acid

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Plant Diversity 2022年第3期44卷 308-315页

作者： Xing He Tian-Quan Lu Jiang-Ying Li Ping Mao Li Zhang Guo-Wei Zheng Bo Tian Key Laboratory of Sustainable Utilization of Tropical Plant Resources Xishuangbanna Tropical Botanical GardenChinese Academy of Sciences88 Xuefu RoadKunming650223China University of Chinese Academy of Sciences Beijing100049China Xinping Branch Yuxi Tobacco CompanyXinping653400China d Guangnan Forestry and Grassland Bureau Guangnan663300China Traditional Chinese Medicine College Yunnan University of Chinese MedicineKunming650500China Center of Economic Botany Core Botanical GardensChinese Academy of SciencesMenglunMenglaYunnan666303China

Nervonic acid(NA)is a very-long-chain monounsaturated fatty acid with pharmaceutical and nutraceutical functions that plays an important role in treating several neurological *** major source of NA is plant seed *** we report fatty acid profiles of seeds and germplasm diversity of six plant species,including three woody plants with high amounts of NA-enriched seed oil,Malania oleifera,Macaranga adenantha,and *** had the largest seed(average 7.40 g single seed),highest oil content(58.71%),and highest NA level(42.22%).The germplasm diversity of *** is associated with its habitat but not *** of *** contained higher NA levels(28.41%)than ***(21.77%),but *** contained a significantly higher oil content(29.22%)and seed *** germplasm varied among populations,with one population having seeds with high oil content(22.63%)and NA level(37.78%).Although *** grow naturally at a range of elevations,no significant differences were detected between *** *** results suggest that *** and *** have greater potential as a source of NA,which will contribute to constructing a germplasm resource nursery and establishing a selection and breeding program to improve the development of NA-enriched plants.

关键词： Nervonic acid Germplasm resource Malania oleifera Macaranga adenantha Macaranga indica Diversity

An accurate diagnostic approach for urothelial carcinomas based on novel dual methylated DNA markers in small-volume urine

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Chinese Medical Journal 2024年第2期137卷 232-234页

作者： Yucai Wu Di Cai Jian Fan Chang Meng Shiming He Zhihua Li Lianghao Zhang Kunlin Yang Aixiang Wang Xinfei Li Yicong Du Shengwei Xiong Mancheng Xia Tingting Li Lanlan Dong YanqingGong Liqun Zhou Xuesong Li Department of Urology Peking University First HospitalBeijing 100034China Institute of Urology Peking UniversityBeijing 100034China National Urological Cancer Center Beijing 100034China Urogenital Diseases(Male)Molecular Diagnosis and Treatment Center Peking UniversityBeijing 100034China Wuhan Ammunition Life-tech company Ltd.WuhanHubei 430200China

Diagnostic methods for urothelial carcinomas(UCs)are often invasive or have suboptimal *** of exfoliated cell DNA or cell-free DNA in urine has shown great promise in the diagnosis of ***,most current studies have focused on bladder cancer(BCa),and only a few high-plex methylated DNA panels based on large-volume urine have been reported to exhibit both high sensitivity and specificity.[1,2]The purpose of this study was to identify universal biomarkers for BCa and upper tract urothelial carcinoma(UTUC)using a small volume of *** developed a dual-target diagnostic panel comprising the novel marker AL021918.2 and the well-known BCa biomarker Vimentin(VIM).This panel can accurately detect UCs using only 1.8 mL of full-voided urine.

关键词： urine bladder diagnosis

Distal-scanning common path probe for optical coherence tomography

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Journal of Innovative Optical Health Sciences 2024年第3期17卷 84-92页

作者： Zhengyu Chen Bin He Zichen Yin Zhangwei Hu Yejiong Shi Chengming Wang Xiao Zhang Ning Zhang Linkai Jing Guihuai Wang Ping Xue State Key Laboratory of Low-dimensional Quantum Physics and Department of Physics Tsinghua UniversityBeijingChina Frontier Science Center for Quantum Information BeijingChina Jinsp company Limited BeijingChina Beijing Institute of Technology BeijingChina Institute of Forensic Science Ministry of Public Security BeijingChina Department of Neurosurgery Beijing Tsinghua Changgung HospitalSchool of Clinical Medicine and Institute of Precision MedicineTsinghua UniversityBeijingChina

In this paper,we present a distal-scanning common path probe for optical coherence tomography(OCT)equipped with a hollow ultrasonic motor and a simple and specially designed *** novel probe proves to be able to effectively circumvent polarization and dispersion mismatch caused by fiber motion and is more robust to a variety of interfering factors during the imaging process,experimentally compared to a conventional noncommon path ***,our design counteracts the attenuation of backscattering with depth and the fall-off of the signal,resulting in a more balanced signal range and greater imaging ***-domain OCT imaging of phantom and biological tissue is also demonstrated with a sensitivity of∼100dB and a lateral resolution of∼3μ*** low-cost probe offers simplified system configuration and excellent robustness,and is therefore particularly suitable for clinical diagnosis as one-off medical apparatus.

关键词： Common path optical coherence tomography endoscopic probe