Medicinal Cannabis: Phytochemistry and Biotechnological Advances

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Phytochemistry".

Deadline for manuscript submissions: 31 August 2026 | Viewed by 1348

Special Issue Editors


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Guest Editor
1. National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS 38677, USA
2. Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, USA
Interests: Cannabis sativa; cannabis genomics; cannabis chemovars; phytocannabinoids; cannabis horticulture

E-Mail Website
Guest Editor
1. National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS 38677, USA
2. Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, USA
Interests: cannabis germplasm; biotechnology; in vitro conservation; micropropagation; cryopreservation

E-Mail Website
Guest Editor
1. National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS 38677, USA
2. Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS 38677, USA
Interests: Cannabis sativa; phytocannabinoids; tetrahydrocannabinol (THC); cannabidiol (CBD); drug development
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Since ancient times, various forms of cannabis have been employed for their medicinal properties. Cannabis contains over 500 identified constituents, with cannabinoids representing the most significant class. Among these, Δ9-tetrahydrocannabinol (Δ9-THC) and cannabidiol (CBD) are the two primary naturally occurring cannabinoids, exhibiting highly different pharmacological profiles and considerable therapeutic potential. Following the discovery of Δ9-THC, the principal psychoactive component of cannabis, research largely focused on Δ9-THC and its derivatives. Cannabidiol, a non-psychoactive compound discovered before Δ9-THC, received relatively little attention for many years. Recently, however, interest in CBD and CBD-rich cannabis varieties has surged due to their therapeutic promise in treating a range of conditions, including childhood epilepsy (such as Dravet syndrome) and other disorders.

Despite its long history of medicinal use, cannabis was classified as a Schedule I substance under the Controlled Substances Act for many years—a status it still retains. However, on December 18, 2025, the President of the United States signed an executive order to ease restrictions on cannabis for legitimate medical use. The order will expedite the reclassification of cannabis from a Schedule I to a Schedule III drug. In parallel with these federal developments, the enactment of medical marijuana laws in many U.S. states and around the world has renewed interest in the medicinal value of cannabis, and many cannabis-derived products are now widely available for public use. Therefore, it is important for growers, processors, and healthcare providers to have a good understanding of this plant, including the production of biomass consistent in secondary metabolites using both traditional and advanced biotechnological methods, its constituents, and the complexity of its chemistry.

This Special Issue explores the cannabis plant, its chemistry, the biotechnological approaches involved in its propagation and processing, and its evolving role as a recognized botanical drug and/or phytopharmaceutical agent.

Prof. Dr. Suman Chandra
Prof. Dr. Hemant Lata
Prof. Dr. Mahmoud A. ElSohly
Guest Editors

Manuscript Submission Information

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Keywords

  • cannabis genomics
  • cannabis chemovars
  • cannabis biotechnology
  • germplasm conservation
  • micropropagation
  • cryopreservation
  • cannabinoid biosynthesis
  • phytocannabinoids
  • endocannabinoid system
  • drug development

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Published Papers (1 paper)

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Research

19 pages, 9395 KB  
Article
Harnessing Sex Reversion via Chemical Intervention in Cannabis sativa L.
by Lennard Garcia-de Heer, Tobias Kretzschmar and Jos Mieog
Plants 2026, 15(9), 1291; https://doi.org/10.3390/plants15091291 - 22 Apr 2026
Viewed by 816
Abstract
Cannabis sativa is a multipurpose dioecious species whose crop performance is governed by sex expression. Although sex is genetically determined by an X/Y chromosome system, plants can develop flowers of the opposite sex through sex reversion, commonly induced by manipulating endogenous hormone levels [...] Read more.
Cannabis sativa is a multipurpose dioecious species whose crop performance is governed by sex expression. Although sex is genetically determined by an X/Y chromosome system, plants can develop flowers of the opposite sex through sex reversion, commonly induced by manipulating endogenous hormone levels using plant growth regulators (PGRs). Here, we evaluated the effectiveness of PGRs that promote or inhibit major hormone pathways implicated in plant sex expression. Male and female clones from two accessions were treated with foliar applications of nine PGRs and four combinatory treatments to assess sex- and genotype-specific responses. Floral biomass and the proportion of each sex were recorded at harvest to assess treatment effectiveness. Ethylene emerged as the primary regulator of chemically modulated sex reversion in C. sativa, with its inhibition by silver thiosulfate inducing strong female-to-male reversion and its promotion by ethephon inducing equally strong male-to-female reversion in the inflorescences. Gibberellin promotion on its own resulted in female-to-male reversion at the axial nodes only, while its inhibition showed no reciprocal effects. The combination of silver thiosulfate and gibberellic acid resulted in the most complete female-to-male reversion, and all sex-reverted flowers were fertile. Together, the results indicated that flowers at axial nodes and at the terminal ends of inflorescences are under different hormonal control. Cytokinins, auxins, and jasmonates were found to exert minimal influence on sex reversion. All treatments exhibited pleiotropic effects, particularly gibberellic acid and paclobutrazol, which altered resource allocation, shifting biomass away from and towards floral tissue, respectively. These findings advance our understanding of the hormonal regulation of sex expression in C. sativa and identify optimized approaches for its manipulation. Full article
(This article belongs to the Special Issue Medicinal Cannabis: Phytochemistry and Biotechnological Advances)
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