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Cancer is a fatal and severe disease to the humankind. There are various potent and effective sources such as natural herbs which have various bioactive compounds to combat cancer. Zingiber officinale is a perennial herb of the Zingiberaceae family having various medicinal properties as well as anti-oxidant potential. The active secondary metabolites in the ginger contribute to its anti-oxidant and anti-cancer property. Various methods are used in detecting how ginger can be used as an agent to combat diseases. Cytotoxicity and antioxidant assays provide the idea about the cell-viability and anti-oxidant property of ginger. When the production of reactive oxygen species (ROSs) increases in the body, it can have various negative impacts. To nullify these impacts, ginger extract is effective on the cells. The cytotoxic nature and anti-proliferative properties of ginger directly contribute to various cellular mechanisms such as apoptosis which have a significant impact on cancer cells. The results also describe the effect of ginger on free radicals. It is concluded that ginger can be used as an alternative source of anti-cancer drugs as it has been proved to be effective in multiple studies. [ABSTRACT FROM AUTHOR]

In the recent times, plants are facing certain types of environmental stresses, which give rise to formation of reactive oxygen species (ROS) such as hydroxyl radicals, hydrogen peroxides, superoxide anions and so on. These are required by the plants at low concentrations for signal transduction and at high concentrations, they repress plant root growth. Apart from the ROS activities, hydrogen sulfide (H2S) and nitric oxide (NO) have major contributions in regulating growth and developmental processes in plants, as they also play key roles as signaling molecules and act as chief plant immune defense mechanisms against various biotic as well as abiotic stresses. H2S and NO are the two pivotal gaseous messengers involved in growth, germination and improved tolerance in plants under stressed and non‐stress conditions. H2S and NO mediate cell signaling in plants as a response to several abiotic stresses like temperature, heavy metal exposure, water and salinity. They alter gene expression levels to induce the synthesis of antioxidant enzymes, osmolytes and also trigger their interactions with each other. However, research has been limited to only cross adaptations and signal transductions. Understanding the change and mechanism of H2S and NO mediated cell signaling will broaden our knowledge on the various biochemical changes that occur in plant cells related to different stresses. A clear understanding of these molecules in various environmental stresses would help to confer biotechnological applications to protect plants against abiotic stresses and to improve crop productivity. [ABSTRACT FROM AUTHOR]

Medicinal plants study has emerged as new topic of interest which unravels the therapeutic potential of different species of plant of therapeutic interest. Uttarakhand state is the niche as well as the repository of diverse medicinal plants that have an immense role in the pharmaceutical industry and can help in sustaining the livelihood of people living in this area in the near future. Approximately, 300 plant species have been recorded from the Uttarakhand, illustrating the richness of herbal plant in the state and empowering the herbal-dependent industry in sub-Himalayan region. The potential medicinal value lies in all the parts of plants like root, shoot, fruits and leaves for treating various illnesses. Thus, there is urgent need to record the traditional knowledge about aromatic and medicinal plants as they are on the verge of extinction. Therefore, present study focuses on collecting the information about medicinal plants used in traditional medical system by the natives of Uttarakhand, India for curing the different ailments of water-borne and role of government and private sector in conserving this rich reservoir of medicinal plants. [ABSTRACT FROM AUTHOR]

In the mountain areas people's dependent on plants for their sustenance especially for medicine and value of medicinal plants in traditional healthcare practises provides clues to latest areas of research in biodiversity conservation. However, information on the uses of plants for medicine is deficient from interior areas of Himalaya. Himachal Pradesh has a rich heritage of medicinal plants. Inspite of this, acute jaundice and viral hepatitis diseases are highly prevalent nowadays among the residents of the state. Total 57 plant families are used for the treatment of liver ailments. The majority of the medicinal plants belongs to the family Asteraceae followed by Berbridaceae, Fabaceae, Apiaceae, Gentianaceae, respectively. The present study aimed to review and highlight the available ethnomedicinal plants in Himachal Pradesh for the treatment of the liver disorders. The over-exploitation, habitat degradation and changing environmental conditions may lead to the extinction within few years. Therefore, regular monitoring of population habitats, development of conventional protocol, and establishment of species in-situ conditions and replication of this approach in other parts of Indian Himalayan region have been recommended. [ABSTRACT FROM AUTHOR]

One of the major global health care crises in the 21st century is antibiotic resistance. Almost all clinically used antibiotics have resistance emerging to them. Antibiotic Resistance can be regarded as the 'Faceless Pandemic' that has enthralled the entire world. It has become peremptory to develop treatment options as an alternative to antibiotic therapy for combating antibiotic-resistant pathogens. A clearer understanding of antibiotic resistance is required to prevent the rapid spread of antibiotic-resistant genes and the re-emergence of infections. The present review provides an insight into the different classifications and modes of action of antibiotics to understand how the hosts develop resistance to them. In addition, the association of genetics in the development of antibiotic resistance and environmental factors has also been discussed, emphasizing developing action plans to counter this "quiescent pandemic". It is also pertinent to create models that can predict the early resistance so that treatment strategies may build up in advance with the evolving resistance., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)

Metalloids are a subset of particular concern to risk assessors and toxicologists because of their well-documented potential hazards to plant system. Most of the metalloids are major environmental contaminants which affect crop productivity when present in high concentrations in soil. Metalloids are coupled with carrier proteins of the plasma membrane and translocated to various organs causing changes in key metabolic processes, damages cell biomolecules, and finally inhibit its growth. Phytoremediation-based approaches help in understanding the molecular and biochemical mechanisms for prerequisite recombinant genetic approaches. Recent advancements in proteomics and plant genomics help in understanding the role of transcription factors, metabolites, and genes in plant system which confers metal tolerance. The present review summarizes our current status of knowledge in this direction related to various physiological responses, detoxification mechanisms, and remediation strategies of metalloids in crop plants in relation to plant-metalloid tolerance. Further, the role of various transcription factors and miRNAs in conferring metal tolerance is also briefed. Hence, the present review mainly focused on the alterations in the physiological activities of plants due to metalloid toxicity and the various mechanisms which get activated inside the plants to mitigate their toxic effects., (© 2020. Springer-Verlag GmbH Germany, part of Springer Nature.)

Stress arising due to abiotic factors affects the plant's growth and productivity. Among several existing abiotic stressors like cold, drought, heat, salinity, heavy metal, etc., drought condition tends to affect the plant's growth by inducing two-point effect, i.e., it disturbs the water balance as well as induces toxicity by disturbing the ion homeostasis, thus hindering the growth and productivity of plants, and to survive under this condition, plants have evolved several transportation systems that are involved in regulating the drought stress. The role of membrane transporters has gained interest since genetic engineering came into existence, and they were found to be the important modulators for tolerance, avoidance, ion movements, stomatal movements, etc. Here in this comprehensive review, we have discussed the role of transporters (ABA, protein, carbohydrates, etc.) and channels that aids in withstanding the drought stress as well as the regulatory role of transporters involved in osmotic adjustments arising due to drought stress. This review also provides a gist of hydraulic conductivity by roots that are involved in regulating the drought stress., (© 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)

Numerous abiotic stresses trigger the overproduction of reactive oxygen species (ROS) that are highly toxic and reactive. These ROS are known to cause damage to carbohydrates, DNA, lipids and proteins, and build the oxidative stress and results in the induction of various diseases. To resolve this issue, antioxidants molecules have gained significant attention to scavenge these free radicals and ROS. However, poor absorption ability, difficulty in crossing the cell membranes and degradation of these antioxidants during delivery are the few challenges associated with both natural and synthetic antioxidants that limit their bioavailability. Moreover, the use of nanoparticles as an antioxidant is overlooked, and is limited to a few nanomaterials. To address these issues, antioxidant functionalized nanoparticles derived from various biological origin have emerged as an important alternative, because of properties like biocompatibility, high stability and targeted delivery. Algae, bacteria, fungi, lichens and plants are known as the producers of diverse secondary metabolites and phenolic compounds with extraordinary antioxidant properties. Hence, these compounds could be used in amalgamation with biogenic derived nanoparticles (NPs) for better antioxidant potential. This review intends to increase our knowledge about the antioxidant functionalized nanoparticles and the mechanism by which antioxidants empower nanoparticles to combat oxidative stress.