Dear Dr Neem Hakim

Very nice question. Yes i think so.

Best regards

Parisa ziarati

Dear Dr Neem Hakim

Very nice question. Yes i think so.

Best regards

Parisa ziarati

The impact of climate change is substantial on forest resources and thereby it is clear that forest herbs will have greater impact.

Following 2 links are important. Our RG colleagues articles may be useful.

Conference Paper Impact of climate change on Medicinal Plants

Article Impact of climate change on Medicinal and aromatic plants: Review

As per my view the climate change affect adversely affects the medicinal value of the plants due to the change in the environment, the elemental disturbance of earth, the stress of variation of CO2 in atmosphere and the adaptation cabability of the plants to the changed climate. Conditions can change the plant physiology and the biosynthetic pathways.

The attached article may be helpful for you.

yes it does

Yes it does but the extent is not yet clear

Hope this helps:

If climate change affects medicinal herbs.

The most drastic in the face of droughts is that the plant does not germinate or that it finally disappears from a certain ecological niche.

In times of heavy rains, also the maturation of the plant would be defective or die by excess water, to the degree of putrefaction.

Climate change would also affect the healing qualities of plants, since the soil substrate from which it is nourished would be modified.

I am of the opinion that Climate change affects the medicinal plants.There are review articles on the impact of climate change on medicinal and aromatic plants.

Climate change has serious implications on the ecosystem and thus affect every thing.I have uploaded a review on Impact of Climate change on the emergence and re-emergence of vector borne diseases.

Prof.Dr.Mahendra Pal

Founder Director of Narayan Consultancy on Veterinary Public Health

Indeed, it exerts greater impacts on medicinal plants.

I would want to thin yes.

sure enough, they are plants and must be affected.

Climate change is affecting everything even human and animal behavior.

Yes climate change do affect medicinal herbs tremendously

It is clear that climate change does affect medicinal herbs, however, we can also say that this climatic phenomenon is a source of evolution. Climatic variation induces also chemical variabilities. I think that medicinal plants are more suffering from human practices. Ecosystems are damaged by human over-exploitation of natural resources.

Best regards

Yes, climate change affects the herbs

Yes: Here the effects of the climate change are double. This will affect both the growing of our native plants and the bio diversity

yes, climate change medical herbs and many other important thinks

Yes.

climate change affects the potency of medicinal drug.

In Ayurveda texts, there is a specific season for collection of different useful parts .

It's a good question and it can be answer through geo-chemical knowledge.

Every climate has it's own potential for oxidation and reduction. The oxidation and reduction potential affect the environment and minerals (micro-nutrients) present in them.

The minerals (micro-nutrients) affect the over all concentration of contents in the medicinal plant.

For sure it will be affected by climate change, for example all plant species have range of temperature, so decreasing temperature than minimum or increasing than maximum may have drastic physiological changes in the plants, as well precipitation and other climatic factors, in addition to possible changes in growing seasons

There are evidences that climate change has been causing noticeable effects on vegetation patterns such as phenology (the timing of lifecycle events in plants and animals, especially in relation to climate) and distribution of the plant species. (Cleland et al. 2007). Such serious issues and challenges are a continuous concern with regard to the survival and genetic integrity of some medicinal and aromatic plants and are being discussed within various forum and platform. However, the effect of climate change on secondary metabolites in plants is not well understood.

A study has noted the endemic nature of the species to different regions or ecosystems that are especially vulnerable to climate change, such as Arctic and alpine regions, and could be at maximum risk (Cavaliere 2008). For example, Rhodiola rosea of the Canadian Arctic and snow lotus (Saussurea laniceps) of the Tibetan mountains are medicinal species that face significant threats from climate change. To add to the list, extreme weather events, meanwhile, have begun to impact the production and harvesting of various medicinal plants around the world. For instance, recent abnormally hot summers have prevented reseeding of medicinal plants such as chamomile (Matricaria recutita) in Germany and Poland, and increasingly severe flooding in Hungary has reduced harvests of fennel (Foeniculum vulgare) and anise (Pimpinella anisum) in that country (Pompe et al. 2008). Although, the primary focus of this article concerns medicinal plants, much of the threat to these plants includes aromatic plants harvested for their essential oils, which could be used for medicinal, fragrance, culinary, and/or other purposes (Cavaliere 2009, Tack et al. 2015).

Common medicinal plants of the Pacific islands include noni (Morinda citrifolia, Rubiaceae), naupaka (Scaevola spp., Goodeniaceae) kukui (Aleurites moluccana, Euphorbiaceae), and milo (Thespesia populnea, Malvaceae). These and other medicinal plant species of the area grow relatively fast, have high reproduction rates, and are typically resistant to salt water and wind, making them more resilient to some of the predicted effects of global climate change (Law and Salick 2005, Walther et al. 2002).

Few studies conducted on effect of atmospheric CO2 enrichment on specific plant compounds of direct medicinal value. Such studies revealed that under controlled wellwatered conditions in a phytotron, tripling of the air’s CO2 content increased dry weight production of medicinal plants of woolly foxglove (Digitals lanata EHRH), which produces the cardiac glycoside digoxin that is used in the treatment of cardiac insufficiency by 63% while under water-stressed conditions the CO2 induced dry weight increase was 83% (Stuhlfouth et al. 1987). Results further revealed that a near-tripling of the air’s CO2 concentration led to 75% increase in plant dry weight production/unit land area and 15% increase in digoxin yield/unit dry weight of plant, which combined to produce an actual doubling of total digoxin yield/ha of cultivated land (Stuhlfauth and Fock 1990).

Absolutely yes because people do not know to conserve the medicinal plant although these are useful for us especially in Myanmar.

Dear Dr. Neem Hakim

Yes, climate change is affecting medicinal and aromatic plants around the world and may ultimately lead to loss of some important species. Medicinal plants of Arctic and Alpine regions, could be more at risk. Rhodiola rosea of the Canadian Arctic and Saussurea laniceps of the Tibetan mountains have been identified as medicinal species that may face significant threats from climate change.

Please also have a look at these useful RG links.

Article Impact of climate change on diversity of himalayan medicinal...

Article Impact of climate change on Medicinal and aromatic plants: Review

Conference Paper Impact of climate change on Medicinal Plants

Conference Paper Climate Change, Medicinal Plants and Ethnobotany: Observatio...

Conference Paper PREDICTING THE IMPACT OF CLIMATE CHANGE ON THE POTENTIAL DIS...

Regards

Yes, definitely climate changes are affecting on medicinal herbs.

Dear Dr. Neem Hakim

Please also have a look at these useful links.

Article Effect of climate change on phytochemical diversity, total p...

http://www.florajournal.com/archives/2016/vol4issue4/PartA/4-5-1-328.pdf

http://rdo.psu.ac.th/sjstweb/journal/37-3/37-3-15.pdf

Regards

YES CLIMATE CHANGE AFFECT PHYTOCHEMICAL VARIATION Neem Hakim

Dear Sir

Climate as well as time of collection in day also effect phytochemical. i.e. Alkaloid content higher if plant collected in afternoon.

Thanks

Yes definitely, but less than human.

Yes Dr. Hakim. Like any other plant and animal species climate change is affecting medicinal plants and that too more severely. Plants gain medicinal properties because of their active principles and the concentration of active principles is a function of harsher environment. That is why we get more of medicinal plants in harsher environments of Alpines and deserts. Also, these plants have habitat specificity that makes them more vulnerable to climate change. The active principles in them may decrease steadily till the time they undergo some form of adaptation mechanism. I hope it helps you with respect to your query.