Dissertação Jakeline Final 02
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Comparative Anther and Pollen Tetrad Development in Functionally Monoecious Pseuduvaria Trimera (Annonaceae), and Evolutionary Implications for Anther Indehiscence
Botany Comparative anther and pollen tetrad development in functionally monoecious Pseuduvaria trimera (Annonaceae), and evolutionary implications for anther indehiscence Journal: Botany Manuscript ID cjb-2017-0203.R5 Manuscript Type: Article Date Submitted by the 01-Jun-2018 Author: Complete List of Authors: Yang, Gui-Fang; South China Botanical Garden, Xu, Feng-Xia; South China Botanical Garden, Is the invited manuscript for consideration in a Not applicable (regular submission) Special Issue? : tapetum abnormalities, stomium integrity, functionally female Keyword: flowers,Draftgametophytic default, histological observations https://mc06.manuscriptcentral.com/botany-pubs Page 1 of 43 Botany Title Page Comparative anther and pollen tetrad development in functionally monoecious Pseuduvaria trimera (Annonaceae), and evolutionary implications for anther indehiscence Gui-Fang Yangab; Feng-Xia Xua aKey Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, 723 Xingke Road, Tianhe District, Guangzhou, Guangdong Draft510650, China bUniversity of Chinese Academy of Sciences, Beijing 100049, China Corresponding author: Feng-Xia Xu (email: [email protected]) 1 https://mc06.manuscriptcentral.com/botany-pubs Botany Page 2 of 43 Abstract Multiple evolutionary origins and diverse morphologies of unisexual flowers in angiosperms indicate that many different developmental mechanisms (sporophytic and/or gametophytic tissues) underlie patterns of sex differentiation; yet these mechanisms, leading to unisexuality, remain largely unresolved. In Pseuduvaria trimera, morphologically hermaphroditic flowers are functionally female owing to indehiscent anthers, but the developmental and anatomical mechanisms preventing their dehiscence are still unknown.Draft Anther and pollen development were compared in both male and functionally female flowers using histological observations to test whether anther indehiscence results from a sporophytic and/or gametophytic default. -
ALCALOIDES DE ANNONACEA: Ocorrência E Compilação De Suas Atividades Biológicas
UNIVERSIDADE FEDERAL DA PARAÍBA CENTRO DE CIÊNCIAS DA SAÚDE INSTITUTO DE PESQUISA EM FÁRMACOS E MEDICAMENTOS PROGRAMA DE PÓS-GRADUAÇÃO EM PRODUTOS NATURAIS E SINTÉTICOS BIOATIVOS ANA SILVIA SUASSUNA CARNEIRO LÚCIO ALCALOIDES DE ANNONACEA: Ocorrência e compilação de suas atividades biológicas e Avaliação fitoquímica e biológica de Anaxagorea dolichocarpa SPRAGUE & SANDWITH (Annonaceae) João Pessoa – PB 2015 ANA SILVIA SUASSUNA CARNEIRO LÚCIO ALCALOIDES DE ANNONACEA: Ocorrência e compilação de suas atividades biológicas e Avaliação fitoquímica e biológica de Anaxagorea dolichocarpa SPRAGUE & SANDWITH (Annonaceae) Tese apresentada ao Programa de Pós- Graduação em Produtos Naturais e Sintéticos Bioativos do Centro de Ciências da Saúde, da Universidade Federal da Paraíba, em cumprimento às exigências para a obtenção do título de Doutor em Produtos Naturais e Sintéticos Bioativos. Área de Concentração: Farmacoquímica. ORIENTADOR: Prof. Dr. José Maria Barbosa Filho CO-ORIENTADOR: Prof. Dr. Josean Fechine Tavares João Pessoa – PB 2015 L938a Lúcio, Ana Silvia Suassuna Carneiro. Alcaloides de annonacea: ocorrência e compilação de suas atividades biológicas e avaliação fitoquímica e biológica de Anaxagorea dolichocarpa Sprague & Sandwith (Annonaceae) / Ana Silva Suassuna Carneiro Lúcio.- João Pessoa, 2015. 302f. : il. Orientador: José Maria Barbosa Filho Tese (Doutorado) - UFPB/CCS 1. Produtos naturais. 2. Farmacoquímica. 3. Annonaceae. 4. Alcaloides. 5. Anaxagorea dolichocarpa. UFPB/BC CDU: 547.9(043) ANA SILVIA SUASSUNA CARNEIRO LÚCIO ALCALOIDES -
Taxonomy and Conservation Status of Pteridophyte Flora of Sri Lanka R.H.G
Taxonomy and Conservation Status of Pteridophyte Flora of Sri Lanka R.H.G. Ranil and D.K.N.G. Pushpakumara University of Peradeniya Introduction The recorded history of exploration of pteridophytes in Sri Lanka dates back to 1672-1675 when Poul Hermann had collected a few fern specimens which were first described by Linneus (1747) in Flora Zeylanica. The majority of Sri Lankan pteridophytes have been collected in the 19th century during the British period and some of them have been published as catalogues and checklists. However, only Beddome (1863-1883) and Sledge (1950-1954) had conducted systematic studies and contributed significantly to today’s knowledge on taxonomy and diversity of Sri Lankan pteridophytes (Beddome, 1883; Sledge, 1982). Thereafter, Manton (1953) and Manton and Sledge (1954) reported chromosome numbers and some taxonomic issues of selected Sri Lankan Pteridophytes. Recently, Shaffer-Fehre (2006) has edited the volume 15 of the revised handbook to the flora of Ceylon on pteridophyta (Fern and FernAllies). The local involvement of pteridological studies began with Abeywickrama (1956; 1964; 1978), Abeywickrama and Dassanayake (1956); and Abeywickrama and De Fonseka, (1975) with the preparations of checklists of pteridophytes and description of some fern families. Dassanayake (1964), Jayasekara (1996), Jayasekara et al., (1996), Dhanasekera (undated), Fenando (2002), Herat and Rathnayake (2004) and Ranil et al., (2004; 2005; 2006) have also contributed to the present knowledge on Pteridophytes in Sri Lanka. However, only recently, Ranil and co workers initiated a detailed study on biology, ecology and variation of tree ferns (Cyatheaceae) in Kanneliya and Sinharaja MAB reserves combining field and laboratory studies and also taxonomic studies on island-wide Sri Lankan fern flora. -
A Floristic Survey of a Unique Lowland Rain Forest in Moraella in the Knuckles Valley, Sri Lanka
Cey. J. Sci. (Bio. Sci.) 40 (1): 33-51, 2011 A FLORISTIC SURVEY OF A UNIQUE LOWLAND RAIN FOREST IN MORAELLA IN THE KNUCKLES VALLEY, SRI LANKA W. W. M. A. B. Medawatte1,2*, E. M. B. Ekanayake1, K. U. Tennakoon3, C.V.S Gunatilleke1 and I. A. U. N. Gunatilleke1 1Department of Botany, University of Peradeniya, Peradeniya, Sri Lanka 2Postgraduate Institute of Science, University of Peradeniya, Peradeniya 3Department of Biology, University of Brunei, Gadong BE 1410, Brunei Darussalam Accepted 01 June 2011 ABSTRACT The luxuriant natural forests of the western lower slope of the Knuckles range have been heavily deforested since the mid-19th century for conversion to coffee and tea plantations. Consequently, only scant floristic and ecological signatures of the original vegetation are , . Recently, an isolated forest fragment at 500-700 m amsl, not recorded previously, in Moraella Kukul Oya (stream) in the s r of Knuckles range. A vegetation survey recorded a total of 204 flowering plant species in 70 families Eighty-nine (44%) species are endemic to Sri Lanka, while 39 (20%) are nationally threatened. Among the 148 tree, treelet and shrub species identified, 4 ( 0%) have been recorded floral of the Knuckles forest reserve, while 115 (78%) are common to the lowland rain forests of south-western Sri Lanka The existence of (river), suggests that of lowland rain forest formation. These forest fragments likely mark the north-eastern-most limits of distribution of lowland rain forests in Sri Lanka and warrant urgent conservation as biodiversity refugia. They may be the last vestiges of an almost disappearing lowland rain forest type in the Knuckles range. -
Evaluation of Antibreast and Antiprostate Cancer Activities
EVALUATION OF ANTIBREAST AND ANTIPROSTATE CANCER ACTIVITIES OF SELECTED MEDICINAL PLANTS FROM SOME PARTS OF KENYA MISONGE JARED ONYANCHA P97/24524/2011 A THESIS SUBMITTED IN FULFILLMENT OF THE REQUIREMENTS FOR THE AWARD OF THE DEGREE OF DOCTOR OF PHILOSOPHY (PHARMACOGNOSY AND COMPLEMENTARY MEDICINE) IN THE SCHOOL OF PHARMACY OF KENYATTA UNIVERSITY NOVEMBER, 2019 ii DECLARATION This thesis is my original work and has not been presented for a degree in any other University or any other award. Jared Misonge Onyancha (Reg. No. P97/24524/2011) Signature ________________________________Date_____________ School of Pharmacy, Kenyatta University SUPERVISORS We confirm that the work reported in this thesis was carried out by the student under our supervision. Prof. Nicholas Kamindu Gikonyo Signature __________________________Date_____________ School of Pharmacy Prof. Michael Muita Gicheru Signature ___________________________Date____________ School of Pure and Applied Sciences Dr. Sabina Wangui Wachira Signature ___________________________Date____________ Centre for Traditional Medicine and Drug Research, Kenya Medical Research Institute iii DEDICATION This work is dedicated to my family, Eucabeth Bosibori (wife), sons: Enosh Osano, David Onyancha and daughters: Tabitha Moke, Ruth Moraa and Esther Kemunto. iv ACKNOWLEDGEMENTS I am grateful to God, creator of the Universe. He bestowed upon me the courage and determination to carry out this research. Secondly, I owe deep gratitudes to my supervisors Prof. Nicholas Gikonyo, Prof. Michael Gicheru both of Kenyatta University and Dr. Sabina Wachira of Kenya Medical Research Institute (KEMRI) for their timely guidance. I recognise the Kenya Medical Research Institute for the opportunity to carry out anticancer and toxicity studies. Mr. Gervson Moriasi (Mount Kenya University) and Mr. Gilbert Mukindia (Kenyatta University) are also appreciated for their technical support. -
The National Red List 2012 of Sri Lanka Conservation Status of The
The National Red List 2012 of Sri Lanka Conservation Status of the Fauna and Flora This publication has been prepared by the Biodiversity Secretariat of the Ministry of Environment in collaboration with the National Herbarium, Department of National Botanic Gardens. Published by: Biodiversity Secretariat of the Ministry of Environment and National Herbarium, Department of National Botanic Gardens Amended Version Copyright : Biodiversity Secretariat, Ministry of Environment Citation: 1. For citing the threatened list MOE 2012. The National Red List 2012 of Sri Lanka; Conservation Status of the Fauna and Flora. Ministry of Environment, Colombo, Sri Lanka. viii + 476pp 2. For citing an article Author name 2012. Title of the paper. In: The National Red List 2012 of Sri Lanka; Conservation Status of the Fauna and Flora. Weerakoon, D.K. & S. Wijesundara Eds., Ministry of Environment, Colombo, Sri Lanka. x-y pp ISBN Number : : 978-955-0033-55-3 Printed by : Karunarathne and Sons Pvt (Ltd) 67, UDA Industrial Estate Katuwana Road, Homagama. Available from : Biodiversity Secretariat, Ministry of Environment. National Herbarium, Department of National Botanic Gardens. Cover page photos: George Van der Poorten Samantha Suranjan Fernando Ranil Nanayakkara Manoj Prasanna Samantha Gunasekera Mendis Wickremasinghe Thilanka Perera Table of Contents List of Abbreviations v Red Listing Team vi Participants of Expert Panel viii Acknowledgements xiv Message of the Minister of Environment xv Message of the Secretary, Ministry of Environment xvi A Brief Overview