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Drought alters plant metabolic processes resulting in some changes at the anatomical and morphological levels. Experiments were conducted to determine the morphologic and anatomic responses of two cultivars of tomato (Solanum lycopersicum L., cultivars CaljN3 and Superstrain B) to different irrigation regimes [100, 75, 50, and 25% of Field Capacity (FC)]. Catalase 1 (CAT1) gene expression was investigated by real-time RT-qPCR and protein interaction studies in tomatoes. Drought stress caused an increase in the number of vessels in roots and stems of both cultivars. The diameter of vascular cylinders in roots of the control plants (both cultivars) was larger. Expression of the CAT1 gene did not show any significant difference in the CaljN3 cultivar under drought conditions. However, expression of the CAT1 gene indicated a significant increase in Superstrain B cultivar at the 50 and 25% FC treatments. The gene network showed that this protein interacts with superoxide dismutase, acyl-CoA oxidase, and glutathione peroxidase. CaljN3 cultivars and showed more tolerance than Superstrain B at all levels of drought treatment. Therefore, Superstrain B is considered a susceptible cultivar under drought conditions. This suggested that the defense against oxidative stress may initiate one step before the activity of antioxidant enzymes. Thus, tomato plant tries to fight the stress factor by activating proteins, especially channels, pumps, and some cellular messengers.

The high mobility and solubility of cadmium pose a serious threat to the health of humans and other organisms. There are no signs of toxicity when cadmium metal accumulates in the tissues of plants and enters the human food chain. Cadmium transfer rates from vegetables to the human diet depend on their accumulation. Thus, inorder to investigate heavy metal absorption by lettuce, this research evaluated the levels of cadmium accumulating in various lettuce organs.

The seeds of lettuce (Lactuca sativa Linn) were cultivated in autoclaved pots containing perlite and cocopeat (with a ratio of 2 to 1). The pots were kept under greenhouse conditions of 25±1 (day temperature) and 20±1 (night temperature) and light/dark conditions were placed. About three weeks after the plants reached the three-leaf stage, the seedlings were treated with cadmium chloride in 3 replicates. Four concentrations (0, 30, 60 and 90 μg/g perlite) were used every 3 days. After 5 stages of treatment and 28 days after cultivation, the third leaf of the plants was used for the studies.

Cadmium increased lettuce's phenol, flavonoid and antioxidant content significantly as compared to the control sample. Furthermore, by increasing the concentrations of cadmium, lettuce showed an increase in total protein, soluble sugar, free amino acids, proline, malondialdehyde, and hydrogen peroxide as compared to the control sample. Due to the increasing amount of cadmium applied to lettuce plants, an increase in the amount of cadmium in the roots was greater than in the aerial parts.

In general, the results of this research indicated that lettuce is a cadmium accumulating plant with the ability to accumulate heavy metals in its roots and aerial parts. Contaminated with heavy metals, it seems necessary to protect the health of consumers.

Expansion of salt stress in cultivable fields prevents plant physiological functions and reduces crop yield. Arbuscular Mycorrhizal Fungi (AMF), as a bio-amelioration of salt stress, protects cellular osmosis via disaccharide and polysaccharide metabolism changes. In this study, three Gossypium species (i.e., G. hirsutum, G. barbadense, and G. herbaceum) colonized with Rhizophagus intraradices [with AMF and without AMF] were cultivated under saline irrigation treatments (ECe< 4 Ds m-1= S0, 8-9= S1, and 12-13= S2) as a factorial experiment. Salinity treatments were initiated at flowering. Generally, according to physiological traits, [+AMF] colonized with G. barbadense was more tolerant in exposure to 12-13 dS m-1 salinity, while G. hirsutum with [+AMF] was just tolerant until 8-9 dS m-1. This is because, the highest and the least leaf area were observed in G. barbadense [+AMF] under 8-9 and 12-13 dS m-1, respectively. In 12-13 dS m-1, the highest root volume, root dry weight, seed weight, and fiber weight were obtained in G. barbadense [+AMF]. Moreover, the highest sugar content in root and leaves and the highest starch content of root, leaves, and seed cotyledon were observed in G. barbadense [+AMF] under 12-13 dS m-1 treatment. Under 8-9 dS.m-1 salinity, the highest starch, Sucrose Phosphate Synthase (SPS) and Sucrose Phosphatase (SP) enzyme activities were in roots of G. barbadense [+AMF]. The present study suggests that despite dramatic physiological alterations under high-salinity in comparison with mild-salinity, AMF and G. barbadense showed the best symbiotic performance under 12-13 dS m-1.

Study of water stress effect in traits of crops is related to stress tolerance, increasing their growth and yield in stress situation.This research was performed to evaluate the impact of different irrigation regimes on cotton yield, fiber quality were conducted using a split-plot factorial design with four irrigation levels (rainfed, 33%, 66% and 100%) as the main factor. After physiological maturation, fiber performance and quality traits were evaluated.protein and phylogenetic properties have been evaluated by bioinformatics tools. The results indicated that the highest yield with 1.2 kg was observed in 66% irrigation treatment. The highest fiber weight was observed in 66% treatment and the lowest in rainfed conditions. Seeds grown under 66% irrigation saved more water and produced potential seeds with high quality fibers. Bioinformatics analysis also revealed that the intracellular locations of CesA and XET1 enzymes are plasma membrane and cell wall, respectively. The enzymes CesA and XET1 belong to the protein family of transferases and hydrolase, respectively. Phylogenetic analysis revealed that the sequences of both cotton enzymes with co-family genera were separated in the Malvaceae . It appears that in order to grow cotton seeds with desirable fibers in low water conditions and in dry areas, it is better to use seeds that are irrigated under optimal irrigation conditions (66%). by cultivating cotton seeds with about one third of the water requirement in three years, in addition to reducing the amount of water requirement and irrigation water consumption, better yields can be achieved.

The Halophytic plant of Ashanan With Scientific name Seidlitzia rosmarinous From the Chenopodiceae family, Plant with applications in various industries Which often grow in saline and alkaline areas, deserts and salt marsh as indigenous and adapted species. In the present study plant of ashnan Using three solvents, ethanol, methanol and water were extracted by Soxhlet method, Then, the ethanolic extract was examined phytochemically. In order to identify the chemical compounds and elements available in the plant Respectively, GC / MS analysis was performed on methanol extract and EDS analysis on Ashnan powder. also, the content of some of the early metabolites, such as protein, fiber and carbohydrate, was measured in plant powder. Finally, its antioxidant activity was evaluated using the ABTS test. the highest Weighted Efficiency was related to water solvent extraction. Phytochemical studies revealed the presence of alkaloids compounds, flavonoids, tannins, saponins, steroids and glycosides, and the absence of terpenoids. The GC / MSS analysis showed the presence of 51 chemical compounds, and the EDS analysis showed the presence of 8 elements in the plant. The most antioxidant activity is in the ethanolic extract. Based on the results Ashnan plant can be a natural antioxidant, In Sanitary, medicine and food industries. Also, the presence of sodium, chlorine and calcium elements in the plant indicates saltiness of the Ashnan plant. It can be very important to manage environmental problems and cultivate in saline soils.

Conflicts over natural resources increase due to a lack or limitation of natural resources and an increasing demand for growing populations. The current research aimed to investigate the conflict management between people and natural resources organizations. A list of local beneficiaries was obtained from Office of Natural Resources and Watershed Management of Kalatnader County, Khorasan-Razavi Province, Iran. The beneficiaries were surveyed through the in-person interview as well as a researcher-made questionnaire. Data were analyzed and modeled by SPSS and Amos softwares. The results indicated that 52% of the respondents had a positive attitude towards natural resources, but 36% were in conflict with the Office, 41% with other institutions, and 43% with other ranchers. Sixty seven percent of participants believed that collaboration with other ranchers could be a solution for the conflict. The most important influencing variables were social trust and violence, which could explain the dependent variable up to 71%. As a result, a conflict resolution approach and advancing negotiation techniques are needed to resolve disputes. Furthermore, the preparation of comprehensive cadastral maps, detailed investigation of conflicting issues, and continuous updating of the investigation process lead to a reduction of land conflicts.

In this study, the effect of TiO2 nanoparticles, as nanoparticles that are the most widely used in industry, on the morphological, and anatomical and biochemical properties of the baby sun rose Aptenia cordifolia was studied by method of spraying in four different concentrations.

Titanium dioxide nanoparticles were sprayed on the baby sun rose plant twice a week. Growth parameters and chlorophyll content, phenol and flavonoids were measured. To study the anatomical structure of the plant; manual cutting, composite staining and Stomatal count were performed. Data analysis was performed using SPSS 16 software and the Duncan test.

Treatment of titanium dioxide nanoparticles significantly increased photosynthetic pigments of chlorophyll a and b in the treated plants. The highest amount of phenol and flavonoids in the fourth leaf was related to the plant treated with 0.05% titanium dioxide nanoparticles. Also, the treatment of titanium dioxide nanoparticles increased the vascular diameter in the root and decreased the vascular diameter in the stem of some treatments.

The different morphological, biochemical, and anatomical responses of the baby sun rose to indicate the plant's genetic potential for growth in an environment contaminated with titanium dioxide nanoparticles.

Although living in a village might be very pleasant and dreamy at first glance, it is hard and harsh because of many factors such as poverty, unemployment, drought, global warming, and low water and agricultural productivity. Despite such difficult conditions and low quality of rural life, a significant number of people remain in villages and do not migrate. This study aimed to investigate the factors affecting survival, sustainability and staying of people in the villages to answer this question: Why do the rural people still remain in their villages? The statistical population included the rural households living in Bayg sub-district of Torbat Heydariyeh County, Razavi Khorasan province of Iran. Using Cochran's formula, 188 households were systematically randomly selected and surveyed via stratified sampling method by a questionnaire. The studied variables included social cohesion, social trust, social participation, and natural, cultural, welfare and economic attractions as well as individual characteristics. The study results showed that a combination of four economic, cultural, natural and individual factors affected sustainable rurality, respectively; and among these factors, lack of economic strength had the greatest impact on the persistence and non-migration of the rural people. However, the fragile social-environmental conditions could change the rural people’s decisions if we failed to engage in capacity building and social empowerment and facilitation by participation of the rural people themselves.

Salinity is the most important abiotic agents limiting plant growth and yield. Mycorrhizal symbiosis can play an important role in moderate the effects on salinity in plants. This study was conducted to evaluate different cotton cultivars in different salinity concentrations and determine the suitable genotype symbiosis with mycorrhiza by effects of carbohydrates synthesis and plant growth parameters. This research was arranged as factorial in a randomized complete block design with three replications at the greenhouse. Factors included three soil salinity levels as the main plot: control (Ec -1), moderate salinity (Ec -1) and severe salinity (Ec -1) and three cottonseed cultivars (Golestan; Termez 14 and Red leaf) with two levels of mycorrhiza (Rhizophagus intraradices) (with and without mycorrhiza). The number of carpels, number of seeds in the carpel, seed weight, fiber weight, sepal weight, seed length, root volume, stem and root length, carbohydrate content in coat and endosperm seed (glucose, xylose, rhamnose, and starch), and mycorrhiza symbiosis percentage traits were studied. Data were analyzed with SAS software. Results showed that red leaf had the most monosaccharide and polysaccharide content in coat and endosperm in moderate salinity with mycorrhiza. The most seed weight and root length were in moderate salinity with mycorrhiza. Golestan cultivar had the most symbiosis percent against non-salinity. The maximum carbohydrate concentration with mycorrhizal symbiosis, showed an efficient role in improving salinity stress-tolerant in red leaf cultivar.

Main question of this research is how “self” is made during the “Student stage” of life? Most researches consider self-making process as the result of the efforts of socialization agents and important active role of the student is neglected. The results of our research showed the plans of the socialization agents constitute just a part of the student’s life-world which has called here as “plan sub-world”. But there is another neglected but important part here called as “play sub-world” which have not been addressed adequately by previous researches. “Play” here is defined as the activity which is done for its own sake not for any advantage it will bring. Play sub-world is where one can express him/herself freely, independent of the control of every pre-designed planning. Juvenile mischiefs like childish fights, teasing the teacher, runaway from the school, and cheating in the exams are samples of the activities of this sub-world. The student’s self, more can be made through this sub-world than everywhere else; because it is at this sub-world that student can express him/herself freely, actively and creatively (unlike plan sub-world in which student is more passive and under control). Therefore, the student life-world includes two plan and play sub-worlds and is made through the dialectic between these two sub-worlds; a dialectic which corresponds to dialectic between practice-thought; active-passive; creativity-memory; sender-receiver, and source-destination. The process of making self in this dialectic is the same as the process of making society.