Production, storability and morphogenic response of alginate encapsulated axillary meristems and genetic fidelity evaluation of in vitro regenerated Ceropegia bulbosa: A pharmaceutically important threatened plant species

2013 ◽  
Vol 47 ◽  
pp. 139-144 ◽  
Author(s):  
Richa Dhir ◽  
G.S. Shekhawat
Keyword(s):  
Plant Species ◽  
Genetic Fidelity ◽  
Threatened Plant ◽  
Threatened Plant Species ◽  
Morphogenic Response ◽  
Axillary Meristems ◽  
Ceropegia Bulbosa

scholarly journals In vitro conservation protocol of Ceropegia bulbosa: An important medicinal and threatened plant species of Western Rajasthan

2017 ◽  
Vol 4 (1) ◽  
pp. 21 ◽  
Author(s):  
Suman Parihar
Keyword(s):  
In Vitro Regeneration ◽  
Axillary Shoot ◽  
Shoot Bud ◽  
Adenine Sulphate ◽  
Bud Induction ◽  
Threatened Plant Species ◽  
Morphogenic Response ◽  
House Condition ◽  
Ceropegia Bulbosa

In vitro regeneration protocol has been standardized for highly medicinal and threatened succulent Ceropegia bulbosa Roxb. The paper focuses on morphogenic response of nodal explant when cultured on MS media. Murashige and Skoog medium supplemented with 6-benzyladenine (BA) (2.0 mgl-1) was found optimum for axillary shoot bud induction with 83.4 % response. Further shoots were multiplied through repetitive (3-4 times) transfer of the original explant and by subculture of the in vitro generated shoots. Maximum number of shoots 5.7±0.78 with shoot length of 3.6±0.82 cm was achieved on MS medium augmented with combination of 0.25 mgl-1 BA + 0.25 mgl-1 KN + 0.1 mgl-1 IAA and additives (50.0 mgl-1 ascorbic acid, 25 mgl-1 each of citric acid, arginine and adenine sulphate). For ex vitro rooting, pulse treatment of IBA 250 mgl-1 for 3 min was found optimum. The rooted shoots were successfully hardened in the green house condition (RH 75-80% at 26-28˚C) and about 80 % shoots were transferred to the garden.

In vitro Propagation of Some Threatened Plant Species of India

2018 ◽  
Vol 114 (03) ◽  
pp. 567 ◽  
Author(s):  
C. R. Deb ◽  
G. R. Rout ◽  
A. A. Mao ◽  
S. K. Nandi ◽  
R. K. Nilasana Singha ◽  
...  
Keyword(s):  
Plant Species ◽  
Threatened Plant ◽  
Threatened Plant Species

Are listed threatened plant species actually at risk?

2002 ◽  
Vol 50 (1) ◽  
pp. 1 ◽  
Author(s):  
Mark A. Burgman
Keyword(s):  
Plant Species ◽  
Threatened Species ◽  
Feedback Loop ◽  
Conservation Status ◽  
The State ◽  
Scarce Resources ◽  
Threatened Plant ◽  
Threatened Plant Species ◽  
Legal Mandates ◽  
State Of The Environment

Despite the fact that the most changes in lists of threatened species reflect changes in knowledge rather than changes in conservation status, the lists continue to provide social and legal mandates for conservation; they are used to report on the state of the environment and to guide the allocation of scarce resources. There is a substantial under-representation of non-vascular species in threatened plant lists, reflected in an absence of documented extinctions among fungi and algae. Turnover in the composition of extinct flora lists in Australia suggests that the lists of threatened species may not be sufficiently reliable to form the basis for reporting on the state of the environment. They are of limited use in distinguishing between levels of threat and may not be a reliable guide for the allocation of scarce conservation resources among plant species. Systems for listing threatened species create a feedback loop, responsive to the subjective preferences of scientists, largely unresponsive to underlying true threats, self-perpetuating and accentuating bias with each iteration. Other tools, including formal decision approaches and the acquisition of new kinds of data, are needed to fill the roles.

Using summed individual species models and state-of-the-art modelling techniques to identify threatened plant species hotspots

2009 ◽  
Vol 142 (11) ◽  
pp. 2501-2509 ◽  
Author(s):  
Miia Parviainen ◽  
Mathieu Marmion ◽  
Miska Luoto ◽  
Wilfried Thuiller ◽  
Risto K. Heikkinen
Keyword(s):  
Plant Species ◽  
State Of The Art ◽  
Individual Species ◽  
Threatened Plant ◽  
Threatened Plant Species ◽  
Modelling Techniques

Loss of pathogens in threatened plant species

Oikos ◽  
2010 ◽  
Vol 119 (12) ◽  
pp. 1919-1928 ◽  
Author(s):  
Amanda K. Gibson ◽  
Jorge I. Mena-Ali ◽  
Michael E. Hood
Keyword(s):  
Plant Species ◽  
Threatened Plant ◽  
Threatened Plant Species

Rediscovery of Ophiorrhiza incarnata C.E.C. Fisch. (Rubiaceae) from the Western Ghats of India after a lapse of 83 years

2021 ◽  
Vol 13 (7) ◽  
pp. 18953-18955
Author(s):  
Perumal Murugan ◽  
Vellingiri Ravichandran ◽  
Chidambaram Murugan
Keyword(s):  
Plant Species ◽  
Western Ghats ◽  
Conservation Status ◽  
Type Locality ◽  
Adjacent Area ◽  
Threatened Plant ◽  
Threatened Plant Species ◽  
Western Ghats Of India ◽  
Southern Western Ghats ◽  
The Western Ghats

Ophiorrhiza incarnata C.E.C.Fisch. (Rubiaceae), a threatened plant species of southern Western Ghats is rediscovered from the adjacent area of the type locality after lapse of eight decades.  Its distribution and conservation status are discussed.

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