Botanica Serbica最新文献_第7页

The formation of integuments, megasporogenesis and megagametogenesis in Dendrobium catenatum, with special discussions on embryo sac types and section techniques 讨论了石斛被珠的形成、大孢子发生和大孢子发生，并对胚囊类型和切片技术作了重点讨论

IF 0.8 4区生物学

Botanica Serbica Pub Date : 2021-01-01 DOI: 10.2298/botserb2102177c

Yong Chen, Xiaofeng Wang, Liangxiaojuan Li, C. Ao

{"title":"The formation of integuments, megasporogenesis and megagametogenesis in Dendrobium catenatum, with special discussions on embryo sac types and section techniques","authors":"Yong Chen, Xiaofeng Wang, Liangxiaojuan Li, C. Ao","doi":"10.2298/botserb2102177c","DOIUrl":"https://doi.org/10.2298/botserb2102177c","url":null,"abstract":"The formation of integuments, megasporogenesis and megagametogenesis in Dendrobium catenatum, an economically important orchid, are observed. After pollination, mitotic cell divisions of the placental epidermis result in the formation of a branching system of outgrowths. The tip of each branch consists of an archesporial cell derived from the differentiation of the terminal subepidermal nucellar cell. It differentiates directly into a megasporocyte. The first division of the meiosis of the megasporocyte produces a dyad approximately equal in size, in which the micropylar cell promptly degenerates. The second meiotic division of the remaining dyad cell results in the formation of two megaspores of unequal size. The larger chalazal cell becomes functional and eventually develops into a mature megagametophyte. The development of the megagametophyte conforms to the Monosporic Polygonum type. The final arrangement of the mature embryo sac conforms to a sevencelled/ eight-nucleate structure. The mature ovule is bitegmic, tenuinucellate and has an anatropous orientation. In the present study, we also discuss the differences between three main types of embryo sac development and the improvement of section techniques.","PeriodicalId":9161,"journal":{"name":"Botanica Serbica","volume":"104 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85865730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Anatomical traits of Artemisia umbelliformis subsp. eriantha (asteraceae) alpine glacial relict from Mt. Durmitor (Montenegro) 伞形蒿亚属的解剖学特征。菊科高山冰川遗迹，产自黑山的杜米托山。

IF 0.8 4区生物学

Botanica Serbica Pub Date : 2021-01-01 DOI: 10.2298/BOTSERB2101023J

P. Janaćković, M. Gavrilović, D. Rančić, D. Stešević, Z. Dajić-Stevanović, P. Marin

{"title":"Anatomical traits of Artemisia umbelliformis subsp. eriantha (asteraceae) alpine glacial relict from Mt. Durmitor (Montenegro)","authors":"P. Janaćković, M. Gavrilović, D. Rančić, D. Stešević, Z. Dajić-Stevanović, P. Marin","doi":"10.2298/BOTSERB2101023J","DOIUrl":"https://doi.org/10.2298/BOTSERB2101023J","url":null,"abstract":"In this study, the vegetative anatomy of Artemisia umbelliformis subsp. eriantha, a Central European alpine glacial relict, wild-growing on Mt. Durmitor (Montenegro) was examined for the first time. The aim was to investigate the general anatomy and particular anatomical traits which might have possible taxonomic value. Microscopic slides were prepared according to the standard histological procedures. The adventitious young root showed a primary structure, while the older root showed a secondary structure with a well-developed periderm on its surface. The rhizome showed a primary structure with elements of a secondary structure (periderm). The stem cross section is characterized by a round shape with a well-developed periderm at certain stages, and collateral vascular bundles arranged in a circle. The petiole is concave in shape with a single-layered epidermis and parenchyma tissue with one large and two small vascular bundles. Druses and rhombohedral crystals are observed inside some petiole parenchyma cells. The leaf lobe cross section has an oblong-linear shape and is isolateral and amphistomatous in structure. The anticlinal walls of the leaf epidermal cells are sinuate. Secretory canals are present in the root cortex parenchyma (endodermal secretory canals) and the rhizome cortical parenchyma. The stem, petiole and leaf lack secretory canals. The stem and leaf are covered with T-shaped non-glandular and glandular trichomes. The taxonomic value of the analyzed characteristics is briefly discussed.","PeriodicalId":9161,"journal":{"name":"Botanica Serbica","volume":"47 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86458536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Alterations in the root proteomes of Brassica napus cultivars under salt stress 盐胁迫下甘蓝型油菜根系蛋白质组的变化

IF 0.8 4区生物学

Botanica Serbica Pub Date : 2021-01-01 DOI: 10.2298/BOTSERB2101087T

H. Terzi, M. Yıldız

{"title":"Alterations in the root proteomes of Brassica napus cultivars under salt stress","authors":"H. Terzi, M. Yıldız","doi":"10.2298/BOTSERB2101087T","DOIUrl":"https://doi.org/10.2298/BOTSERB2101087T","url":null,"abstract":"Soil salinization is an important environmental problem affecting agricultural production worldwide. Seed germination is a critical process, and seedling establishment under saline conditions can be achieved by successful germination. In the present study, comparative proteomics combined with physiological analyses were used to investigate the protein alterations in germinating Brassica napus cultivars (Caravel and Sary) under NaCl stress. Seed germination declined with the increasing NaCl concentration. However, Caravel exhibited better performance in terms of seed germination and seedling growth under salinity stress. Therefore, Caravel was found to be more tolerant to salinity than Sary. The root proteins were extracted from B. napus cultivars germinating on a plant growth medium with or without 100 mM NaCl for seven days. After the root proteins had been separated by two-dimensional (2-D) gel electrophoresis, the differentially accumulated proteins were identified using MALDI-TOF/TOF MS. The comparative proteomics analysis revealed 12 and 27 statistically significant proteins accumulated in the NaCl-treated roots of Caravel and Sary, respectively. The identified proteins were mostly involved in protein metabolism, stress defense, cytoskeleton and cell wall metabolism, and energy metabolism. The salt-sensitive cultivar Sary displayed an elevated accumulation of proteins involved in antioxidant defense and the protein catabolic process such as superoxide dismutase [Fe], L-ascorbate peroxidase 1, and different components of the proteasome system. On the other hand, the levels of molecular chaperones including 20 kDa chaperonin, chaperonin CPN60, heat shock cognate protein HSC70, and heat shock 70 kDa protein 1 were higher in Caravel than Sary under salt stress. These findings will provide the possible mechanisms which contribute to salt tolerance and may serve as the basis for improving salinity tolerance in rapeseed.","PeriodicalId":9161,"journal":{"name":"Botanica Serbica","volume":"4 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86506796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New records and noteworthy data of plants, algae and fungi in SE Europe and adjacent regions, 6 6 .欧洲东南部及邻近地区植物、藻类和真菌的新记录和值得注意的资料

IF 0.8 4区生物学

Botanica Serbica Pub Date : 2021-01-01 DOI: 10.2298/botserb2102361t

G. Tomović, M. Sabovljević, E. Masic, Sladjana Popovic, Aleksandra Marković, Ivana Trbojević, J. Pantović, K. Sutorý, M. Niketić, Petya Boycheva, Dobri Ivanov, Alma Hajrudinović-Bogunić, Ante Begic, B. Assyov, G. Tamas, C. Bîrsan, S. Ștefănuț

引用次数: 6

A new species of Centaurea L. subgen. Cyanus Mill. (Asteraceae) from Turkey 标题半人马属亚属一新种。Cyanus轧机。(菊科)产于土耳其

IF 0.8 4区生物学

Botanica Serbica Pub Date : 2021-01-01 DOI: 10.2298/BOTSERB2101013S

Emrah Şirin, H. Yıldırım, T. Uysal, K. Ertuğrul

引用次数: 2

New records and noteworthy data of plants, algae and fungi in SE Europe and adjacent regions, 3 2 .欧洲东南部及邻近地区植物、藻类和真菌的新记录和值得注意的资料

IF 0.8 4区生物学

Botanica Serbica Pub Date : 2021-01-01 DOI: 10.2298/BOTSERB2101119S

M. Sabovljević, G. Tomović, Petya Boycheva, Dobri Ivanov, T. Denchev, C. Denchev, Ivana Stevanoski, A. Marković, Sanja Djurovic, Uroš Buzurović, G. Yaneva, S. Ștefănuț, Miruna-Maria Ștefănuț, A. Knezevic, P. Petrović, B. Assyov, J. Pantović, M. Niketić, S. Vukojičić, R. Ion, G. Tamas

引用次数: 4

New desmid records from two high mountain lakes in Camlıhemşin/Rize (Turkey) 土耳其Camlıhemşin/Rize两个高山湖泊的低气压新记录

IF 0.8 4区生物学

Botanica Serbica Pub Date : 2021-01-01 DOI: 10.2298/botserb2102273s

B. Şahin

引用次数: 0

The chemical composition and anti-inflammatory effect of the essential oil obtained from Abeliophyllum distichum flowers 二元树花挥发油的化学成分及抗炎作用

IF 0.8 4区生物学

Botanica Serbica Pub Date : 2021-01-01 DOI: 10.2298/BOTSERB2101137J

H. Ju, Heung Lim Bin, Tae-Hyun Kyung

引用次数: 1

The role of epigenetic modifications in plant responses to stress 表观遗传修饰在植物逆境反应中的作用

IF 0.8 4区生物学

Botanica Serbica Pub Date : 2021-01-01 DOI: 10.2298/BOTSERB2101003L

Xuefeng Lu, Tae-Hyun Kyung

引用次数: 3

Ruderal vegetation in Serbia - diversity and floristic composition 塞尔维亚的原始植被。多样性和区系组成

IF 0.8 4区生物学

Botanica Serbica Pub Date : 2021-01-01 DOI: 10.2298/botserb2102251t

Milena Tabašević, D. Lakušić, N. Kuzmanović, S. Vukojičić, M. Glišic, S. Jovanovic

{"title":"Ruderal vegetation in Serbia - diversity and floristic composition","authors":"Milena Tabašević, D. Lakušić, N. Kuzmanović, S. Vukojičić, M. Glišic, S. Jovanovic","doi":"10.2298/botserb2102251t","DOIUrl":"https://doi.org/10.2298/botserb2102251t","url":null,"abstract":"This study represents the first data gathering and analysis of the floristic composition of ruderal vegetation in Serbia, published over the last 70 years. The dataset included 748 relev?s of ruderal communities and a total of 716 plant species and subspecies. The study showed that the most abundant were widespread taxa, especially taxa of the Eurasian area type, while alien species accounted for a relatively small proportion of the ruderal flora (about 10%). Therophytes and hemicryptophytes were most abundant in the life form spectra. Five vegetation groups were identified, corresponding to the following vegetation classes: Bidentetea, Sisymbrietea, Digitario sanguinalis-Eragrostietea minoris, Artemisietea vulgaris and Polygono-Poetea annuae. The analysis of similarity showed that there are small floristic differences between particular vegetation groups. The determined diagnostic species for the vegetation groups were compared with those of the corresponding anthropogenic vegetation classes, and a high degree of similarity was found for all but one group. The most frequent taxa in all five groups were Polygonum aviculare, Convolvulus arvensis, Plantago major subsp. major and Chenopodium album.","PeriodicalId":9161,"journal":{"name":"Botanica Serbica","volume":"12 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81952941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1