REDISCOVERY OF ALDROVANDA VESICULOSA L. (DROSERACEAE), AN ENDANGERED PLANT, AFTER SIX DECADES IN INDIA FROM MANIPUR WITH STUDIES ON MICROMORPHOLOGY AND PHYSICO-CHEMISTRY OF WATER

NGANGBAM, R. D., DEVI, N. P., DEVI, M. H. & SINGH, P. K. 2019. Rediscovery of Aldrovanda vesiculosa L. (Droseraceae), an endangered plant, from Manipur in India after six decades, with studies on micromorphology and physico-chemistry of water. Reinwardtia 18(2): 71‒80. — A small population of the aquatic insectivorous plant Aldrovanda vesiculosa L. of Droseraceae family was found growing in Yena pat, a small lake having an area of about 0.939 km2 in Bishnupur district, Manipur state, India. This marks its rediscovery in India after a long gap of 64 years. The present status of the species in the updated IUCN Red List of Threatened Species version 2018.2 is endangered and considered extinct from India. A general description and micromorpho-taxonomic studies are included. As the species is a bioindicator, physico-chemical studies of the water were also investigated so as to provide aid in both in-situ and ex-situ conservation strategies. Immediate conservation initiatives are warranted to maintain the species after its rediscovery.

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Investigating the status of Cinnamomum chago (Lauraceae), a plant species with an extremely small population endemic to Yunnan, China

Oryx ◽

10.1017/s0030605318001527 ◽

2019 ◽

Vol 54 (4) ◽

pp. 470-473

Author(s):

Xue Zhang ◽

Xiong-Li Zhou ◽

Yuan-Huan Liu ◽

Jin-Qiu Mo ◽

Li-Qin Zhang ◽

...

Keyword(s):

Plant Species ◽

Conservation Status ◽

Woody Species ◽

Iucn Red List ◽

Small Population ◽

Ex Situ ◽

Area Of Occupancy ◽

The Family ◽

The Status ◽

Management And Conservation

AbstractCinnamomum chago is a woody species of the family Lauraceae endemic to Yunnan province, China, previously known from only one location, and categorized as a Plant Species with Extremely Small Population. We surveyed to determine the distribution and population size of C. chago, characterize its habitat, identify any threats, assess its conservation status, and provide guidelines for its management and conservation. During 2014–2017 we found only 64 mature C. chago, in five locations. These small, fragmented populations occur along Lancang River in Dali Prefecture at altitudes of 2,200–2,400 m. The species' extent of occurrence is c. 923 km2, with an area of occupancy of c. 60 km2. The habitat of the species has been degraded by expansion of pastoral activities and deforestation. We recommend categorization of C. chago as Endangered on the IUCN Red List, prevention of the collection of seeds and wood of the species, protection and monitoring, and ex situ propagation for future reintroductions.

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De Novo Transcriptome Assembly and Population Genetic Analyses for an Endangered Chinese Endemic Acer miaotaiense (Aceraceae)

Genes ◽

10.3390/genes9080378 ◽

2018 ◽

Vol 9 (8) ◽

pp. 378 ◽

Cited By ~ 18

Author(s):

Xiang Li ◽

Meng Li ◽

Lu Hou ◽

Zhiyong Zhang ◽

Xiaoming Pang ◽

...

Keyword(s):

Genetic Differentiation ◽

Population Genetic ◽

Expressed Sequence Tag ◽

De Novo ◽

Transcriptome Assembly ◽

Principal Component ◽

Ex Situ ◽

Conservation Strategies ◽

Endangered Plant ◽

Population Genetic Analysis

Acer miaotaiense (P. C. Tsoong) is a rare and highly endangered plant in China. Because of the lack of genomic information and the limited number of available molecular markers, there are insufficient tools to determine the genetic diversity of this species. Here, 93,305 unigenes were obtained by multiple assembled contigs with a transcriptome sequencing program. Furthermore, 12,819 expressed sequence tag-derived simple sequence repeat (EST-SSR) markers were generated, 300 were randomly selected and synthesized, 19 primer pairs were identified as highly polymorphic (average number of alleles (Na) = 8, expected heterozygosity (He) = 0.635, polymorphism information content (PIC) = 0.604) and were further used for population genetic analysis. All 261 samples were grouped into two genetic clusters by UPGMA, a principal component analyses and a STRUCTURE analyses. A moderate level of genetic differentiation (genetic differentiation index (Fst) = 0.059–0.116, gene flow = 1.904–3.993) among the populations and the major genetic variance (81.01%) within populations were revealed by the AMOVA. Based on the results, scientific conservation strategies should be established using in situ and ex situ conservation strategies. The study provides useful genetic information for the protection of precious wild resources and for further research on the origin and evolution of this endangered plant and its related species.

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Physico-Chemical Studies on the Coordination Compounds of N-(2- Carbamoyl-Furanyl) -C-(3'-Carboxy- 2'-Hydroxyphenyl) Thiazolidin-4-One

International Journal of Scientific Research ◽

10.15373/22778179/may2013/11 ◽

2012 ◽

Vol 2 (5) ◽

pp. 24-27

Author(s):

Dinesh Kumar ◽

◽

Anju Gupta

Keyword(s):

Coordination Compounds ◽

Physico Chemical ◽

Chemical Studies

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Physico-chemical Studies of Some Transition Metal(II) Chlorides in Methanol-Water Mixture at Different Temperatures

Science & Technology Journal ◽

10.22232/stj.2016.04.01.07 ◽

2016 ◽

Vol 4 (1) ◽

pp. 48-55

Author(s):

Lalzawnpuia Lalzawnpuia ◽

◽

N. Mohondas Singh ◽

Keyword(s):

Transition Metal ◽

Water Mixture ◽

Physico Chemical ◽

Different Temperatures ◽

Chemical Studies

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Design, synthesis and physico-chemical studies of a Co(II)/Co(III) mixed-valence complex: An experimental and DFT approach.

Journal of Molecular Structure ◽

10.1016/j.molstruc.2021.130384 ◽

2021 ◽

pp. 130384

Author(s):

Intissar Hamdi ◽

Noureddine Mhadhbi ◽

Noureddine Issaoui ◽

Andreas Roodt ◽

Mark M. Turnbull ◽

...

Keyword(s):

Mixed Valence ◽

Design Synthesis ◽

Physico Chemical ◽

Chemical Studies ◽

Mixed Valence Complex

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Cryopreservation of Woody Crops: The Avocado Case

Plants ◽

10.3390/plants10050934 ◽

2021 ◽

Vol 10 (5) ◽

pp. 934

Author(s):

Chris O’Brien ◽

Jayeni Hiti-Bandaralage ◽

Raquel Folgado ◽

Alice Hayward ◽

Sean Lahmeyer ◽

...

Keyword(s):

Tissue Culture ◽

Ex Situ Conservation ◽

Plant Genetic Resources ◽

Ex Situ ◽

Conservation Strategies ◽

Recalcitrant Seed ◽

In Vitro Storage ◽

Germplasm Collections ◽

Seed Crops

Recent development and implementation of crop cryopreservation protocols has increased the capacity to maintain recalcitrant seeded germplasm collections via cryopreserved in vitro material. To preserve the greatest possible plant genetic resources globally for future food security and breeding programs, it is essential to integrate in situ and ex situ conservation methods into a cohesive conservation plan. In vitro storage using tissue culture and cryopreservation techniques offers promising complementary tools that can be used to promote this approach. These techniques can be employed for crops difficult or impossible to maintain in seed banks for long-term conservation. This includes woody perennial plants, recalcitrant seed crops or crops with no seeds at all and vegetatively or clonally propagated crops where seeds are not true-to-type. Many of the world’s most important crops for food, nutrition and livelihoods, are vegetatively propagated or have recalcitrant seeds. This review will look at ex situ conservation, namely field repositories and in vitro storage for some of these economically important crops, focusing on conservation strategies for avocado. To date, cultivar-specific multiplication protocols have been established for maintaining multiple avocado cultivars in tissue culture. Cryopreservation of avocado somatic embryos and somatic embryogenesis have been successful. In addition, a shoot-tip cryopreservation protocol has been developed for cryo-storage and regeneration of true-to-type clonal avocado plants.

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