نتایج جستجو برای: plant anatomy
تعداد نتایج: 483752 فیلتر نتایج به سال:
salinity is the major limiting factor for plant growth and crop productivity. salt stress is effective on physiological characteristics, morphology, anatomy, chemical composition and water content of plant tissue. pulses are the second of food source after the cereals for human. among the pulses, the bean has special importance. in order to investigate the effect of silicon on the physiological...
Introduction: Theoretical courses on anatomical sciences are taught through integrative or regional approaches. It seems that integration helps teachers to convey the materials better to medical students, especially during their clinical stage. Therefore, we decided to study the viewpoints of faculty members of anatomy department in medical universities of Iran toward the horizontal integration...
The amphibious leafless sedge Eleocharis vivipara develops C4-like traits as well as Kranz anatomy under terrestrial conditions, but it develops C3-like traits without Kranz anatomy under submerged conditions. When submerged plants are exposed to aerial conditions, they rapidly produce new photosynthetic tissues with C4-like traits. In this study, experiments were performed to determine whether...
Kranz anatomy, with its separation of elements of the C4 pathway between two cells, has been an accepted criterion for function of C4 photosynthesis in terrestrial plants. However, Bienertia cycloptera (Chenopodiaceae), which grows in salty depressions of Central Asian semi-deserts, has unusual chlorenchyma, lacks Kranz anatomy, but has photosynthetic features of C4 plants. Its photosynthetic r...
The amphibious leafless sedge Eleocharis vivipara develops C 4 -like traits as well as Kranz anatomy under terrestrial conditions, but it develops C 3 -like traits without Kranz anatomy under submerged conditions. When submerged plants are exposed to aerial conditions, they rapidly produce new photosynthetic tissues with C 4 -like traits. In this study, experiments were performed to determine w...
Background: Understanding some part of the human body such as serous membrane, peritoneal cavity, lesser sac and proper mesentery is difficult for medical students. The objective of this study was to determine the effect of animal dissection on improving medical student knowledge and view related viscera and serous membrane anatomy. Methods: In YUMS in 2011, sixty eight medical students were ra...
Forensic botany encompasses many sub-disciplines, including plant anatomy, plant ecology, plant systematics, plant molecular biology, palynology, and limnology. Although the field of forensic botany has been recognized since the mid-1900’s, the use of trace plant material as physical evidence in criminal casework is still novel. A review of published forensic casework that used plant evidence i...
Forensic botany encompasses many sub-disciplines, including plant anatomy, plant ecology, plant systematics, plant molecular biology, palynology, and limnology. Although the field of forensic botany has been recognized since the mid-1900's, the use of trace plant material as physical evidence in criminal casework is still novel. A review of published forensic casework that used plant evidence i...
Summary Sherwin Carlquist established xylem vessel indices and parameters to quantify the degree of mesomorphy or xeromorphy exhibited by plants. These were developed as part efforts establish a quantitative approach plant anatomy developing fields functional ecological anatomy. In this paper, we discuss origin such their merits demerits in light current theory practice. Vessel diameter, elemen...
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