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关键词： 秦艽组   秦艽   生物学特性  

摘要： 秦艽属龙胆科龙胆属植物,是我国传统常用中药材,具有祛风湿、清湿热、止痹痛、退虚热等功效。随着人们对其药用价值的深入研究,市场需求量大增,优质秦艽的货源更显不足。现从秦艽的种质资源、形态学特性、种子生物学特性、生殖生物学特性、有效成分含量等方面对秦艽的生物学特性研究进展进行综述,以期为秦艽植物资源的进一步开发利用提供理论依据。

关键词： 报喜斑粉蝶   红树林   海桑   无瓣海桑   风险  

摘要： 首次报道报喜斑粉蝶华南亚种[Delias pasithoe porsenna(Cramer)]在深圳福田红树林保护区严重为害海桑[Sonneratia caseolaris(L.)]和无瓣海桑(*** Buch-Ham)两种海桑科(Sonneratiaceae)乔木红树。通过室内饲养和林间调查,明确了报喜斑粉蝶华南亚种各虫态的形态特征和变化过程,行为习性,并发现其有较强的耐饥饿、抗海水浸泡等抗逆能力,提出其他红树植物也存在受到该种害虫危害的潜在风险。

关键词： 丝瓜   植物学特征   生物学特征   栽培技术  

摘要： 丝瓜[Luffacylindrica（Linn．）Roem．]为葫芦科丝瓜属一年生攀援草本植物，起源于亚洲，分布于亚洲、大洋洲、非洲和美洲的热带和亚热带地区。丝瓜主要有两种，即普通丝瓜和有棱丝瓜，前者我国大江南北均有栽培，后者主要在我国华南栽培。丝瓜以嫩瓜供食，可以炒食、凉拌，用以做汤味道更为鲜美，常食丝瓜可生津止渴，清热解毒。丝瓜的药用价值很高，根、茎、叶、花、果实、种子均可入药。丝瓜是我国重要的中药材及加工沐浴用品等加工原料。平均亩采摘丝瓜4000-5000kg，能获得较高的经济效益，发展丝瓜具有十分重要的意义和广阔的市场发展前景。现将其植物生物学特性及栽培技术综合介绍如下。

关键词： 植物生物学   高等职业教育   教材   植物学   生物化学  

ISBN: (纸本)9787562480235

摘要： 本书共分四个项目，项目一主要讲述了植物生理生化的基础知识，如植物体的构成成分、植物体内的酶、植物细胞；项目二主要讲述了植物的新陈代谢，如植物的水分代谢、矿质代谢、光合作用、呼吸作用；项目三主要讲述了植物生长发育生理，如植物的生长物质、营养生长生理、繁殖发育生理、成熟衰落生理；项目四主要讲述了植物的逆境生理，如植……

关键词： PHOTOSYNTHESIS   ABSORPTION   PHOTOVOLTAIC cells   SOLAR cells   CHLOROPLASTS  

摘要： The article presents information on bioinspired materials. Topics discussed include, photosynthetic activity, absorption spectrum, and localization of nanoparticles within plant organelles. Also discussed are the human-engineered analogues of photosynthetic systems, dye-sensitized solar cells and energy gradient devices, and natural and nanobionic chloroplasts.

关键词： Development   oviposition   strawberry   susceptibility   Tetranychus urticae  

摘要： The two-spotted spider mite, Tetranychus urticae Koch, is commonly found on strawberry crops (Fragaria x ananassa). Strawberry plants have defensive mechanisms, which in turn influence the behavior of herbivores. The oviposition and development of the two-spotted spider mite were evaluated on the leaf disks of the cultivars 'Aromas,' 'Camarosa,' 'Camino Real,' 'Diamante,' 'Diamante 10,' 'Diamante 50,' 'Festival,' and 'Seascape.' It was observed that on cultivars such as 'Aromas,' 'Camarosa,' and 'Seascape,' immature survivorship was higher, but no difference was found during the developmental period from egg to adult of T. urticae. The immature development time was also longer on 'Camarosa.' Females laid more eggs on 'Seascape' (8.4 eggs/day), and the least on 'Camarosa' (1.0 egg/day). Mortality was higher at the larval stage and reached more than 50% in three cultivars 'Camarosa,' 'Diamante,' and 'Seascape.' Thus, the cultivars 'Camarosa,' 'Diamante,' and 'Seascape' were the ones that mostly affected the survival, development, and reproduction of T. urticae.

关键词： molecular biology   plant genetics  

关键词： biotrophic fungi   CAZy   fungal genomics   Mixiomycetes   Osmunda spp   sporogenesis  

摘要： Mixia osmundae (Basidiomycota, Pucciniomycotina) represents a monotypic class containing an unusual fern pathogen with incompletely understood biology. We sequenced and analyzed the genome of ***, focusing on genes that may provide some insight into its mode of pathogenicity and reproductive biology. Mixia osmundae has the smallest plant pathogenic basidiomycete genome sequenced to date, at 13.6Mb, with very few repeats, high gene density, and relatively few significant gene family gains. The genome shows that the yeast state of *** is haploid and the lack of segregation of mating genes suggests that the spores produced on Osmunda spp. fronds are probably asexual. However, our finding of a complete complement of mating and meiosis genes suggests the capacity to undergo sexual reproduction. Analyses of carbohydrate active enzymes suggest that this fungus is a biotroph with the ability to break down several plant cell wall components. Analyses of publicly available sequence data show that other Mixia members may exist on other plant hosts and with a broader distribution than previously known.

关键词： 去磷酸化反应   B-1   细胞生物学   助细胞   活性分子   拮抗物  

摘要： 理论B整套试题总分:120分,时间:150 min每个问题可以有1个或1个以上的正确答案(每题3分)。细胞生物学问题组:下图描绘了某特定细胞表面结构的横切面在电子显微镜下观察的结果。回答问题B1和B2。B1.拥有上述结构的有:A.草履虫B.大肠杆菌C.裸子植物的管胞D.人输卵管上皮细胞E.人气管上皮细胞F.人小肠上皮细胞B2.这种结构的功能和它的主要化学组成是什么?

关键词： 生物合成   植物生长素   植物激素   环境信号   配子体   茎尖分生组织   双突变体   胚胎发育   胚囊   器官发生  

摘要： 生长素是调控植物生长发育最重要的植物激素之一.自从1880年达尔文发现生长素以来,植物生长素生物合成、极性运输及其信号转导被广泛深入研究.传统观点认为生长素生物合成主要在幼嫩的叶组织和茎尖分生组织.而最近几年的研究发现,在特定发育信号或环境信号诱导下,植物体的所有组织或器官均能快速有效地合成生长素.生长素合成对植物配子体发生、胚胎发育、器官发生和向性生长等过程中具有重要调控功能,因而成为目前植物生长素研究领域中的重要热点之一.