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1.
ZHU Renbin 《西北植物学报》2020,(2):286-286
Balanophora indica(Arn.)Griff.belongs to Balanophoraceae.Plants dioecious.Rhizome yellowish orange to brown,surface coarsely tessellated and with stellate warts;branches subglobose,0.5-5.6 cm in diam,rarely cylindric.Scapes yellow,7.2-20 cm.Male inflorescences red,ovoid-ellipsoid,(5-10)cm×(2-6)cm.Male flowers:reddish,actinomorphic,each subtended by a single stout and truncate bract.Perianth lobes 4-6,elliptic-lanceolate,(3-7)mm×(1-2.5)mm.Synandria elliptic-ovate,2.5-5 mm,stalked;anthers 4 or 5,U-shaped,longitudinally dehiscent.Female inflorescences globose,3-5 cm in diam.Spadicles subclavate,to 2 mm,apical 1/2 to 2/3 ellipsoid-obovoid;cuticular ridges of apical cells short but distinct and congested all over.Female flowers:basally on spadicles and main axis of inflorescence.Flowering October to December. 相似文献
2.
该刊由圣彼得堡俄罗斯科学院动物研究所(Zoological Institute,Russian Academy of Sciences, St. Petersburg)与莫斯科有害动植物生物防治国际组织东古北区分部(East Palaearctic Section of the International Organization for Biological Control of No-xious Animals and Plants,Moscow)1992年联合创办,昆虫学家I. M. Kerzhner任 相似文献
3.
Plant immune signaling: Advancing on two frontiers 总被引:1,自引:0,他引:1
Plants have evolved multiple defense strategies to cope with pathogens, among which plant immune signaling that relies on cell-surface localized and intracellular receptors takes fundamental roles. Exciting breakthroughs were made recently on the signaling mechanisms of pattern recognition receptors(PRRs) and intracellular nucleotide-binding site(NBS) and leucine-rich repeat(LRR)domain receptors(NLRs). This review summarizes the current view of PRRs activation, emphasizing the most recent discoveries about PRRs’ dynamic regulation and signaling mechanisms directly leading to downstream molecular events including mitogen-activated protein kinase(MAPK) activation and calcium(Ca2+) burst. Plants also have evolved intracellular NLRs to perceive the presence of specific pathogen effectors and trigger more robust immune responses. We also discuss the current understanding of the mechanisms of NLR activation, which has been greatly advanced by recent breakthroughs including structures of the first full-length plant NLR complex, findings of NLR sensor-helper pairs and novel biochemical activity of Toll/interleukin-1 receptor(TIR) domain. 相似文献
4.
马金双 《热带亚热带植物学报》2021,29(4):451-454
《中国维管植物科属词典》(A Dictionary of the Families and Genera of Chinese Vascular Plants),李德铢主编,685页, 2018;北京: 科学出版社;定价: 298元;ISBN:978-7-03-055120-7.
本书以被子植物APG系统为主要框架,结... 相似文献
5.
Jiong Liu Lu Li Zhilong Xiong Christelle A.M.Robert Baozhu Li Shan He Wenjie Chen Jiasheng Bi Guanqing Zhai Siyi Guo Hui Zhang Jieping Li Shutang Zhou Xi Zhang Chun-Peng Song 《植物学报(英文版)》2024,(1):143-159
Plants have evolved complex physical and chemical defense systems that allow them to withstand herbivory infestation. Composed of a complex mixture of very-long-chain fatty acids(VLCFAs) and their derivatives, cuticular wax constitutes the first physical line of defense against herbivores. Here, we report the function of Glossy 8(Zm GL8), which encodes a 3-ketoacyl reductase belonging to the fatty acid elongase complex, in orchestrating wax production and jasmonic acid(JA)-mediated defenses agai... 相似文献
6.
Torné J. M. Rodriguez P. Manich A. Claparols I. Santos M. A. 《Plant Cell, Tissue and Organ Culture》1997,51(2):95-102
The embryogenic capacity of Araujia sericifera petals and some of the factors involved in the induction of embryos was investigated.
The influence of 6-benzyladenine and α-naphthalene acetic acid, light intensity (90 or 5 μmol m-2 s-1) and silver thiosulphate (inhibitor of ethylene action) were studied. It was found that petals are an easy system in which
to induce somatic embryogenesis. Plants were recovered from somatic embryos. Although 6-benzyladenine is essential for inducing
an efficient response, a high dosage increased callogenesis and reduced embryogenesis. The highest rate of embryogenesis is
induced with high light intensity (90–100 μmol m-2 s-1), even though the presence of silver thiosulphate in the medium markedly reduced embryo induction.
This revised version was published online in June 2006 with corrections to the Cover Date. 相似文献
7.
<正>Plants produce a large array of specialized metabolites(natural products)that not only are essential for growth and development,but also play important roles in adaptation to the variable stressful environments.Also,many plant metabolites are essential nutrient elements for humans and serve as natural drugs.However,study of the biosynthesis of natural products is still in its infancy,because more than 90%of plant 相似文献
8.
Lijun Wang Jiaojiao Gao Zixin Zhang Weimiao Liu Peilei Cheng Wenting Mu Tong Su Sumei Chen Fadi Chen Jiafu Jiang 《植物学报(英文版)》2020,62(8):1059-1064
正Plants experiencing hypoxia (a shortage of oxygen)are unable to maintain aerobic respiration, which leads to an energy and carbohydrate deficit. The pervasive and rapid accumulation of ethylene is an early and reliable response to hypoxic stress(Sasidharan and Voesenek 2015), producing an uptick in the accumulation of reactive oxygen species (ROS).This in turn triggers apoptosis in root cortex cells,eventually leading to the formation of lysigenous aerenchyma, a tissue from which ethylene is readily 相似文献
9.
植物生理学成为一门独立的科学,在国外多归功于德国的萨赫斯(J.von sachs),认为他是近代植物生理学的奠基人。他所写的《植物生理学讲义(Lectures on the Physiology of Plants,Lon—don:Oxford University Press,1887)是使这门学 相似文献
10.
11.
In multicellular plant organs, cell shape formation depends on molecular switches to transduce developmental or environmental signals and to coordinate cell‐to‐cell communication. Plants have a specific subfamily of the Rho GT Pase family, usually called Rho of Plants(ROP), which serve as a critical signal transducer involved in many cellular processes. In the last decade, important advances in the ROP‐mediated regulation of plant cell morphogenesis have been made by using Arabidopsis thaliana leaf and cotyledon pavement cells.Especially, the auxin‐ROP signaling networks have been demonstrated to control interdigitated growth of pavement cells to form jigsaw‐puzzle shapes. Here, we review findings related to the discovery of this novel auxin‐signaling mechanism at the cell surface. This signaling pathway is to a large extent independent of the well‐known Transport Inhibitor Response(TIR)–Auxin Signaling F‐Box(AFB) pathway, and instead requires Auxin Binding Protein 1(ABP1) interaction with the plasma membrane‐localized, transmembrane kinase(TMK) receptor‐like kinase to regulate ROP proteins. Once activated, ROP influences cytoskeletal organization and inhibits endocytosis of the auxin transporter PIN1. The present review focuses on ROP signaling and its self‐organizing feature allowing ROP proteins to serve as a bustling signal decoder and integrator for plant cell morphogenesis. 相似文献
12.
Qin Liu Tian-Tian Xue Xiao-Xia Zhang Xu-Dong Yang Fei Qin Wen-Di Zhang Lei Wu Rainer W.Bussmann Sheng-Xiang Yu 《Plant Diversity》2023,(3):272-283
Plants classified as Near Threatened(NT) are at high risk of becoming threatened because of anthropogenic interference and climate change.Especially in conservation efforts,such species have however long been overlooked.Here,we obtained 98,419 precise occurrence points for 2442 NT plants in China,and used species richness,species complementarity,and weighted endemism that consider all,endemic and narrow-ranged species in order to identify the diversity hotspots of NT plants.Then we evaluated the... 相似文献
13.
Plants of Brassica juncea L. cv. T-59 were supplied with 50 or 100 μM nickel (Ni50, Ni100) at 10 d after sowing (DAS), and sprayed with 28-homobrassinolide (HBR) at 20 DAS. The plants treated with Ni alone exhibited
reduced growth, net photosynthetic rate, content of chlorophyll, and the activities of nitrate reductase (E.C.1.6.6.1) and
carbonic anhydrase (E.C. 4.2.1.1) at observed 40 DAS, whereas, the contents of peroxidase (PER), catalase (CAT), and proline
were increased. However, the spray of HBR partially neutralized the toxic effect of Ni on most of the parameters. Moreover,
the treatment of HBR in association with either of the Ni concentration boosted the contents of PER and CAT in leaves and
that of proline both in leaves and roots. 相似文献
14.
<正>With the effect of global climate change on grain yield and distribution of crops,to understand how plant responds to extreme temperature stress is becoming crucial.Plants have evolved fine-tuned mechanisms in response to a wide variety of environmental stresses.During rice(Oryza sativa L.)domestication,two main genotypes are bred and extendedly 相似文献
15.
(一)植物的生物化学(The Biochemistry of Plants)丛书简介 1.《植物细胞》(The Plant Cell)1980 2.《代谢与呼吸》(Metabolism and Respiration)1980 3.《糖类:结构与功能》(Carbohydrates:Structure and Function)1980 4.《脂类:结构与功能》(Lipids:Structure and Function)1980 5.《氨基酸及其衍生物》(Amino Acids and Derivatives)1980 6.《蛋白质与核酸》(Proteins and Nucleic Acids)1981 相似文献
16.
Julian F. V. Vincent 《仿生工程学报(英文版)》2006,3(1):43-58
Most multicellular organisms can be categorised by two words: hierarchy and composite. The underlying fractal geometry of nature - at least in terms of provision of infrastructure - provides much of the hierarchy, although many materials for which infrastructure is not an integral factor are also strongly hierarchical. Plants can therefore be modelled using recursive computer programs which add structures as the size increases. However, problems with mechanical stability also increase as the structure grows, so the plant changes from deriving stiffness from intevaal pressure to cross-linking the cell wall components permanently. However, this compromises the ability of the plant to grow and repair itself. 相似文献
17.
A. Lux D. Lišková A. Piñeyro Lopez J. Ruiz Ordoñez D. Kákoniová 《Biologia Plantarum》1997,40(1):143-147
Zygotic embryos of Karwinskia parvifolia, isolated from seeds obtained from different regions of Mexico, were cultured on
Woody Plant Medium (WPM) supplemented with 0.06 μM indole-3-acetic acid, 0.03 μM gibberellic acid, and 2 μM 6-benzylaminopurine.
The growth of embryos and multiplication of shoots from stem segments were achieved. Rooting of excised shoots could be initiated
on basal WPM medium with prolonged subculture period to 2 months, or on WPM medium supplemented with 10 μM 1-naphthaleneacetic
acid. Multiplication capacity of shoots and rooting of K. parvifolia differed in dependence on the origin of explant material.
The shoot multiplication was much lower than that of Karwinskia humboldtiana. The rooting depended on the origin of K. parvifolia
seeds. The regenerated plants were successfully transferred to glasshouse.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
18.
Edward Borowski Zbyszek K. Blamowski Władysław Michałek 《Acta Physiologiae Plantarum》2000,22(3):271-274
The influence of triacontanol in a form of Tomatex preparation on basic indices of chlorophyll fluorescence in tomato leaves
(Delfina cv.), yield of fruits, and dry matter content in fruits was evaluated in a pot experiment situated in vegetation
hall in 1999. Tomatex was applied into roots at seedling stage (6–7 leaves) or at the stage of seedling and flowering of the
2nd inflorescence bunch. Plants were given by 0.3, 3.0, and 30 μg triacontanol per pot at a single dosage. Results obtained have
shown that triacontanol regardless of the dose applied, significantly increased the maximal efficiency of PSII photochemistry
in the dark (Fv/Fm), the efficiency of excitation capture by open PSII reaction centers (Fv’/Fm’), the actual quantum yield of PSII electron transport in the light-adapted state (ΦPSII), the photochemical quenching coefficient (Qp). However, nonphotochemical quenching coefficient (Qn) and non-radiative dissipation (NPQ) were decreased. Plants treated with triacontanol at the doses of 0.3 and 3.0 μg had
significantly higher yields of fruits than control. No differences were found between plants treated once and twice with the
growth regulator. Triacontanol did not show univocal effects on dry matter content in fruits either. 相似文献
19.
Plants take up a wide range of trace metals/metalloids(hereinafter referred to as trace metals)from the soil,some of which are essential but become toxic at high concentrations(e.g.,Cu,Zn,Ni,Co),while others are non-essential and toxic even at relatively low concentrations(e.g.,As,Cd,Cr,Pb,and Hg). Soil contamination of trace metals is an increasing problem worldwide due to intensifying human activities.Trace metal contamination can cause toxicity and growth inhibition in plants,as well as accum... 相似文献
20.
马金双 《热带亚热带植物学报》2016,24(2):241-242
正2014,Jane Kilpatrick,Fathers of Botany——The Discovery of Chinese Plants by European Missionaries(植物学之父——欧洲传教士发现的中国植物),254页;kew:kew Publishing,Royal 相似文献