A new pyrrolidone derivative from Pistacia chinensis

A new N-phenyl-pyrrolidone derivative had been isolated from Pistacia chinesis Bunge. Its structure was elucidated as 4-hydroxy-5-（2-oxo-1-pyrrolidinyl）-benzoic acid, named pistaciamide on the basis of the 1D-NMR, DEPT, HMQC and HMBC spectroscopic techniques. 2007 Xi Kui Liu. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

Research advances in the study of Pistacia chinensis Bunge, a superior tree species for biomass energy

As a renewable energy, biomass energy has aroused wide attention and studies of this issue have become a hot topic throughout the world. Pistacia chinensis Bunge （Anacardiaceae） is a superior species for biomass energy with high oil content in seeds and wide geographic distribution. It is a dioeciously, deciduous arbor, flowering from March to April and bearing fruits from September to November. The classification, regional distribution and biological characteristics ofP chinensis are stated in this paper, then, research advances in the growth, breeding and physiology of this species are summarized. The problems in present studies are broached. Finally, a future direction for research is proposed.

Antioxidant and lipoxygenase inhibitory properties of a novel flavonoid from Pistacia chinensis Bunge and its molecular docking analysis

Background:Pistacia chinensis Bunge has been traditionally used to manage various conditions,including asthma,pain,inflammation,hepatoprotection,and diabetes.The study was conducted to investigate the antioxidant and anti-lipoxygenase(LOX)properties of the isolated compound 2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4H-chromen-4-one from Pistacia chinensis.Methods:LOX assay and antioxidant activity using 2,2-diphenyl-1-picrylhydrazyl(DPPH)assay were performed.Molecular docking studies were conducted using a molecular operating environment.Results:The LOX assay revealed significant inhibitory effects at 0.2µM concentration,with an IC50 value of 37.80µM.The antioxidant effect demonstrated dose-dependency across 5 to 100µg/mL concentrations,reaching 93.09%at 100µg/mL,comparable to ascorbic acid’s 95.43%effect.Molecular docking studies highlighted strong interactions with the lipoxygenase enzyme,presenting an excellent docking score of-10.98 kcal/mol.Conclusion:These findings provide valuable insights into Pistacia chinensis’chemical components and biological effects,reinforcing its traditional medicinal applications.

陕西省能源植物黄连木种植土地资源分析与预测

针对当前化石能源日渐短缺的问题,结合当前生态文明建设的发展主题,对作为最有潜力的可再生能源之一的能源植物黄连木(Pistacia chinensis Bunge)种植的土地资源利用情况进行分析与预测。采用多因素法,结合相关政策和黄连木生长习性设立指标,利用土地利用、温度、坡度等因素对陕西省境内可种植黄连木的土地资源进行分析;基于CA-Markov模型对2020年陕西省土地利用覆被情况进行预测,从而预测2020年可用于黄连木种植的土地数量。结果表明,陕西省种植黄连木潜力较大,可种植土地以疏林地、草地为主,适宜种植土地较少,较适宜种植土地面积较大。基于“多规”思想,结合陕西省“双退”工作,有利于推广黄连木的种植。

Endozoochory of frugivorous birds as potential dispersal of seed parasites from Pistacia chinesis:experimental evidence

The plant-disperser-fruit pest triads involve 3 interacting animals or groups(plants,vertebrates and seed parasites),and the dispersal of both seeds and seed parasites,which can both benefit from endozoochory via defecation or regurgitation by frugivorous vertebrates.However,we have very limited knowledge about the ecological and evolutionary consequences of these plant-disperser-fruit pest triads.Across central Northern China,several seed wasps(mainly Eurytoma plotnikov attack Pistacia chinensis fruits,and seed wasp larvae can develop,diapause and finally emerge as adults inside a seed during the following 1-3 years.In this study,we experimentally investigated whether frugivorous birds discriminated P.chinesis fruits with or without seed parasites,and whether bird endozoochory(by defecation or regurgitation)affected larval survival of seed parasites.The infestation rate by seed parasites was 37%of the P.chinesis fruit crop but with up to 48%of aborted fruits.We found that all 5 bird species can discriminate and then reject all unhealthy fruits(including aborted and insect-infested).However,4 of the 5 bird species,in particular bulbul species,consumed 15-41%of aborted and insect-infested fruits as complementary food only when these unhealthy fruits were provided.Moreover,all larva of seed parasites remained alive after bird defecation or regurgitation.In conclusion,our study demonstrates that endozoochory by frugivorous birds could lead to potential dispersal of seed parasites of P.chinensis but with a very low probability.

黄连木在城市道路绿化空间的配置

本研究以黄连木(Pistacia chinensis)为试验材料,模拟道路空间中的不同生境条件(光照、土壤),通过测定土壤的理化性状以及黄连木的生长、叶色变化等生理指标,分析其适宜的行道树配置模式。结果表明南侧种植+有机肥处理的黄连木叶面积最大,为13 336.6 mm^(2)。添加有机肥、颗粒物等改良材料可显著增加速效钾含量,植物的叶绿素含量也均高于对照,且存在着显著性差异;种植方位对黄连木叶绿素含量的影响从大到小依次为东侧、南侧、西侧,与水分利用效率(WUE)趋势一致。黄连木在上海秋季叶色表现为红色或黄色,10 mL 0.1 mol/L HCl浸提的花青素含量为1.90~15.54 g;添加土壤改良物后,植株落叶时间均比对照延后1~2周;南侧和西侧种植的植株叶色相对较好,以黄褐色为主。黄连木作为行道树时应优先种植于道路路面宽的东西向道路,并进行树穴改良,进一步提升树种生长活力、延长秋色叶观赏期。