The role of the protective shield against UV-C radiation and its molecular interactions in Nostoc species (Cyanobacteria).

Cyanobacteria possess special defense mechanisms to protect themselves against ultraviolet (UV) radiation. This study combines experimental and computational methods to identify the role of protective strategies in Nostoc species against UV-C radiation. To achieve this goal, various species of the genus Nostoc from diverse natural habitats in Iran were exposed to artificial UV-C radiation.

Enhancement of Essential Oil Production and Expression of Some Menthol Biosynthesis-Related Genes in Using Cyanobacteria.

Background: L. is one of the most important aromatic crops and is cultivated worldwide for essential oils (EOs).

Objectives: The aim of the present study was to investigate the potential of two cyanobacteria, ISB42 and var.

Response to Cadmium Toxicity: Orchestration of Polyamines and microRNAs in Maize Plant.

Cadmium (Cd) is a heavy metal that is widely contaminating the environment due to its uses in industries as corrosive reagents, paints, batteries, etc. Cd can easily be absorbed through plant roots and may have serious negative impacts on plant growth. To investigate the mechanisms utilized by plants to cope with Cd toxicity, an experiment was conducted on maize seedlings.

Aqueous Extracts of Medicinal Mushrooms Ganoderma lucidum and Pleurotus eryngii (Agaricomycetes) Can Affect Seed Germination and Seedling Survival.

Rapid and complete seed germination results in the rapid initial growth of plants. In this study, aqueous extracts (boiling, maceration + filtration, and maceration + autoclave) of Ganoderma lucidum and Pleurotus eryngii were used to improve seed germination of three crops (maize, clover, and alfalfa). The results revealed that boiled water extractions of G.

Constitutive Overexpression of a Conifer Homolog Affects Somatic Embryo Development in and Promotes Somatic Embryogenesis and Organogenesis in Seedlings.

Although full sequence data of several embryogenesis-related genes are available in conifers, their functions are still poorly understood. In this study, we focused on the transcription factor , which is involved in determination of the apical domain during early embryogenesis, and is required for initiation of the stem cell program in the embryogenic shoot meristem of . We studied the effects of constitutive overexpression of () by -mediated transformation of somatic embryos and seedlings.

Contrasting the expression pattern change of polyamine oxidase genes and photosynthetic efficiency of maize ( L.) genotypes under drought stress.

The aim of this study was to contrast the effects of drought stress on polyamine oxidases gene expression and activity as well as photosynthetic efficiency in relatively tolerant (Karoon) and sensitive (260) maize genotype. d Reduction in leaf relative water content as a result of drought led to increase in root growth, but diminished shoot growth indices. Under drought stress, activity of antioxidant enzyme, catalase, significantly increased in both genotypes, whereas significant higher activity of superoxide dismutase and peroxidase was only observed in Karoon genotype.