The response of some photosynthetic parameters (CO2 assimilation, transpiration rate, stomatal conductance, intercellular CO2 concentration, water-use efficiency, and chlorophyll content), shoot development, and the morphological features of the root system to differentiated conditions of nitrogen supply was tested in festulolium (Festulolium braunii K. Richert A. Camus) varieties (Felopa and Sulino). Nitrogen fertilization with no nitrogen added
[0 g(N)], single dosage [0.23 g(N)], and double dosage [0.46 g(N)] per pot and per year was applied. Lack of nitrogen resulted in formation of longer and finer roots and lowered chlorophyll content, CO₂ assimilation, and water-use efficiency, resulting in lower dry matter accumulation. Application of both dosages of nitrogen resulted in improved aboveground features, while root features were enhanced without nitrogen fertilization. Dependence between physiological parameters and morphological traits was significant and positively correlated in the case of the aboveground parts of plants and negatively correlated to the belowground parts., G. Mastalerczuk, B. Borawska-Jarmułowicz, H. M. Kalaji, P. Dąbrowski, J. Paderewski., and Obsahuje bibliografii
We studied water relations and gas exchange in six almond genotypes grafted on GF677 in response to withholding irrigation for 14 days and a subsequent 10-day rehydration period. The responses to drought stress significantly differed in the almond genotypes; the tolerant plants were distinguished and monitored. Leaf relative water content (RWC) decreased by more than 23%, leaf water potential dropped to less than -4.3 MPa, and electrolyte leakage increased to 43% in dehydration-sensitive genotypes. Photosynthesis (PN) and stomatal conductance (gs) of drought-sensitive genotypes were significantly reduced by 70% and 97% in response to water deficiency. Water stress significantly enhanced wateruse efficiency up to 10 folds in drought-tolerant almonds. The difference between leaf temperature and its surrounding air temperature (ΔT) increased significantly to more than 187% under water stress in drought-tolerant genotypes. In addition, the reduction in the g s and further ability to preserve RWC were involved probably in drought-tolerance mechanism in almond. Negative significant correlations were found between ΔT, PN, and gs. Based on the correlations, we suggested that ΔT could be used as a simple measurement for monitoring water stress development in the irrigation management of almond orchards. In conclusion, ‘Supernova’ and the Iranian genotypes ‘6-8’ and ‘B-124’, were found to be more droughttolerant compared with other genotypes in this experiment., S. Karimi, A. Yadollahi, K. Arzani, A. Imani, M. Aghaalikhani., and Obsahuje bibliografii
BACKGROUND: Occurrence of gastric metastasis as the first symptom of breast carcinoma with a long period of latency before presentation of the primary breast carcinoma is rare. CASE REPORT: A patient with gastric metastasis as the first symptom of lobular breast carcinoma, treated by neoadjuvant preoperative chemoradiotherapy and total gastrectomy, with complete local control. Fourteen months after presentation of the gastric metastasis a primary lobular breast carcinoma was discovered, treated by radiotherapy, chemotherapy and hormonal treatment with complete local response. Twenty-three months after diagnosis of breast cancer multiple colorectal metastases from the breast cancer occurred, which were treated by chemotherapy and hormonal treatment. Eighty-six months after diagnosis of gastric metastasis the patient died due to progression of cancer. CONCLUSIONS: Metastases to gastrointestinal or gynaecological tracts are more likely in invasive lobular carcinoma than invasive ductal cancer. The pathologist should determine whether or not they check estrogen and progesterone receptor status not simply by signet ring cell morphology but also by consideration of clinic-pathological correlation of the patient, such as the presence of a past history of breast cancer, or the colorectal localization of poorly differentiated carcinoma, which may occur less frequently than in the stomach. and D. Buka, J. Dvořák, I. Richter, N. D. Hadzi, J. Cyrany
Gastric or intestinal luminal tonometry is a method for monitoring critically ill patients. It offers an index of the adequacy of aerobic metabolism in a tissue that is particularly sensitive to alterations in its perfusion and oxygenation: the gut mucosa. It is based on the measuring the increase in tissue CO2 production that accompanies anaerobic metabolism. The method simply consists of a balloon in the stomach, which measures intramucosal pCO2. From this measurement and from the arterial bicarbonate concentration gastric intramucosal pH (pHi) can be calculated, assuming that bicarbonate concentration in the gastric mucosal tissue is in equilibrium with systemic arterial bicarbonate. Despite possible clinical benefit from the measurement and the therapy of low pHi values in critically ill patients, the theoretical, experimental and pathophysiological implications for the monitoring of intramucosal acidosis in the gut are not yet fully understood. There are still some open methodological questions crucial for further clinical interpretation., V. Černý, K. Cvachovec., and Obsahuje bibliografii
Endometrióza znamená přítomnost tkáně endometria mimo dutinu děložní. Hlubokou infiltrující endometriózu (deep infiltrating endometriosis – DIE) představují rektovaginální léze, infiltrující onemocnění střev, močového měchýře, močovodu a DIE se vzácně objevuje i v dalších lokalizacích. Negynekologické komplikace DIE rozdělujeme do dvou hlavních kategorií: samotné onemocnění zahrnuje pánevní a břišní bolest, střevní striktury, opakující se krvácení z konečníku, dyschezii, chronickou anémii, dysurii, hematurii, stenózu ureterů, ztrátu ledvinných funkcí a komplikace léčby, ty jsou charakterizovány vznikem fistul, dysfunkcí močového měchýře a opakujícími se záněty urinárního traktu. DIE přináší riziko pro vznik malignit zasažených orgánů. DIE může být léčena konzervativně, nebo chirurgicky. Předkládaná práce je přehledem gastrointestinálních a urologických komplikací DIE a předkládá také kazuistiku pacientky centra pro léčbu endometriózy v nemocnici ve Znojmě (ČR)., Endometriosis is the presence of endometrial tissue outside the endometrial cavity. Deep infiltrating endometriosis (DIE) includes rectovaginal lesions as well as infiltrative disease to the bowel, urinary bladder, ureter and other rare locations. Non gynecological complications of DIE can be divided into two major categories: complications of the disease itself which include pelvic and abdominal pain, bowel stricture, cyclic rectal bleeding, dyschezia, chronic anemia, dysuria, hematuria, ureteral stenosis as well as loss of kidney function and complications of the treatment which include fistula formation, bladder void dysfunction and recurrent urinary tract infections. DIE has potential for malignant transformation in the affected organ. DIE may be managed conservatively or surgically. However definitive treatment is surgical. In the current work, literature review of gastrointestinal and urological complications of DIE is presented together with an exemplary case report of a patient managed at the clinical center for treatment of endometriosis in Znojmo Czech republic., and H. Kondo Imani