Photosynthetic Characteristics of Indian Rhubarb (Rheum emodi Wall.): An Endangered Medicinal Plant

Hypericum scruglii Bacch., Brullo & Salmeri is an endangered endemic plant of Sardinia, and the phloroglucinol compounds identified in this species have been reported to inhibit the activity of the Human Immunodeficiency Virus. Seed banks are a genetic repository that effectively preserve taxa of conservation interest, and they hold knowledge about the biology and germination ecophysiology of the taxa they preserve. The main goals of this study were to investigate the germination requirements for H. scruglii, to evaluate the seed viability after eight years of long-term conservation and to suggest an efficient protocol for germination. Seeds stored at –25 °C in the seed bank were tested at temperatures from 5 to 30 °C and 25/10 °C. Base temperature (Tb) and thermal time (θ50) for germination were estimated. Seeds of H. scruglii germinated over a wide range of temperatures, responding positively to high temperatures and 25/10 °C. Tb was estimated at 4.92 °C, and θ50 was estimated at 198.27 degree days. The high viability detected in seeds of H. scruglii allows us to suggest the use of seeds stored in a seed bank when fresh material for plant propagation is scarce. Our results provide new and useful baseline information for implementing conservation and multiplication strategies for this endangered medicinal plant.

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Efficient plant regeneration through callus in Zanthoxylum armatum DC: an endangered medicinal plant of the Indian Himalayan region

Plant Biosystems - An International Journal Dealing with all Aspects of Plant Biology ◽

10.1080/11263504.2019.1610107 ◽

2019 ◽

Vol 154 (3) ◽

pp. 288-294 ◽

Cited By ~ 6

Author(s):

Sumit Purohit ◽

Kuldeep Joshi ◽

Vivek Rawat ◽

Indra D. Bhatt ◽

Shyamal K. Nandi

Keyword(s):

Plant Regeneration ◽

Medicinal Plant ◽

Himalayan Region ◽

Indian Himalayan Region ◽

Zanthoxylum Armatum ◽

Endangered Medicinal Plant

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Genetic diversity within and among populations of Neopicrorhiza scrophulariiflora (Scrophulariaceae) in China, an endangered medicinal plant

Biochemical Systematics and Ecology ◽

10.1016/j.bse.2011.03.004 ◽

2011 ◽

Vol 39 (4-6) ◽

pp. 297-301 ◽

Cited By ~ 4

Author(s):

Xiao-Li Liu ◽

Zi-Gang Qian ◽

Fei-Hu Liu ◽

Yao-Wen Yang ◽

Chun-Xia Pu

Keyword(s):

Genetic Diversity ◽

Medicinal Plant ◽

Endangered Medicinal Plant

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Cytological study on chromosome behaviour and new report on nature of mode of pollination ofSwertia chirayita, a high value endangered medicinal plant of North Eastern Himalayan region

Caryologia ◽

10.1080/00087114.2004.10589665 ◽

2009 ◽

Vol 62 (1) ◽

pp. 43-52 ◽

Cited By ~ 9

Author(s):

Chakraborty Soumendra ◽

Dhiman Mukherjee ◽

Tapash Dasgupta

Keyword(s):

Medicinal Plant ◽

Cytological Study ◽

Himalayan Region ◽

Chromosome Behaviour ◽

Endangered Medicinal Plant ◽

North Eastern ◽

Eastern Himalayan Region

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AFLP and PBA polymorphisms in an endangered medicinal plant, Rhazya stricta, in Pakistan

Plant Genetic Resources ◽

10.1017/s147926211300052x ◽

2013 ◽

Vol 12 (2) ◽

pp. 199-206 ◽

Cited By ~ 1

Author(s):

Syed Abdullah Gilani ◽

Ryoko Hirano ◽

Yoshiharu Fujii ◽

Kazuo N. Watanabe

Keyword(s):

Habitat Fragmentation ◽

Genetic Differentiation ◽

Medicinal Plant ◽

Genetic Erosion ◽

Human Pressure ◽

Rhazya Stricta ◽

Endangered Medicinal Plant ◽

Genomic Markers ◽

High Gene ◽

Commercial Harvesting

Rhazya stricta is an endangered medicinal plant that is under severe human pressure as a result of commercial harvesting. As a model of habitat fragmentation, we selected the Kohat Plateau in the Pakistani Himalaya, where populations are fragmented, with less than 100 individuals per population. We hypothesized that the populations may be threatened by rapid habitat fragmentation and by unsustainable utilization of the plant. We analysed P450-based analogue functional genomic markers and amplified fragment length polymorphism markers from six populations of R. stricta on the Kohat Plateau, and examined their variations both within and among the populations. Both the marker groups revealed lower genetic differentiation among the populations and higher genetic differentiation within the populations as a result of high gene flow. The results confirmed that habitat fragmentation is being caused by severe human pressure, and although signs of genetic erosion are not yet visible, they seem likely to become visible in the future. Therefore, the conservation of R. stricta populations is necessary.

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