The in vitro germination and storage characteristics of Keteleeria fortunei var. cyclolepis pollen provide a reference for cross breeding

PROTOPLASMA ◽  
2020 ◽  
Vol 257 (4) ◽  
pp. 1221-1230
Author(s):  
Xiongsheng Liu ◽  
Yufei Xiao ◽  
Yong Wang ◽  
Fengfan Chen ◽  
Ronglin Huang ◽  
...  
1985 ◽  
Vol 27 (3-4) ◽  
pp. 303-316 ◽  
Author(s):  
Juvenal G. Luza ◽  
Vito S. Polito

2021 ◽  
Vol 34 (2) ◽  
pp. 1-9
Author(s):  
Zaid K. Kadhim ◽  
Muslim A. A. Abdulhussein

An experiment for strawberry Fragaria ananassa cv. Festival in vitro conservation of cultures for nine months was studied. Three MS medium strength (full strength MS, ¾ MS, ½ MS, and ¼ MS) and the storage period (3, 6, and 9 months) in slowing down or reducing growth. Results showed a significant effect of the medium salt strength, as the full strength treatment was higher by achieved the highest percentage of viability (survival %) and storage characteristics of cultures (N%, P%, carbohydrates%, protein %) and regeneration ability characteristics (shoots and roots number and length). Three-month storage period achieved the highest rate compared to the nine-month storage period, which recorded the lowest average for the studied characteristics. The full strength treatment for three months storage period realized the highest rate compared to treatment ¼ strength for the storage period of nine months, which recorded the lowest rate of the studied traits. The application of minimal strength for in vitro conservation allows strawberry cultures to remain viable with a slow growth rate and a significant increase in the storage life of the tissues to nine months.


2019 ◽  
Vol 20 (2) ◽  
pp. 117-122 ◽  
Author(s):  
Martin Williams ◽  
Kathleen Forbes ◽  
Charlene Williams ◽  
Tannis Beardmore

1991 ◽  
Vol 37 (2) ◽  
pp. 186-190 ◽  
Author(s):  
Karl-P Vorderwinkler ◽  
Eilka Artner-Dworzak ◽  
Gab Jakob ◽  
Johanne Mair ◽  
Franz Diensti ◽  
...  

Abstract Concentrations of atrial natriuretic peptide (ANP) are increased in plasma of patients with impaired cardiac and renal function. The second messenger of ANP, cyclic guanosine monophosphate (cGMP), is released into the plasma specifically upon stimulation of cells with ANP. Although nitrates can also activate intracellular cGMP synthesis, we detected no increase in plasma cGMP concentrations after infusions of glycerol trinitrate. Because immunoreactive ANP is highly susceptible to degradation and nonspecific influences in blood samples, determinations of ANP require immediate centrifugation and storage of plasma at -20 degrees C. In contrast, we found that cGMP is stable for five days in vitro in blood samples containing EDTA. In 147 healthy blood donors, the upper cutoff value for plasma cGMP was 6.60 nmol/L, not significantly different (P greater than 0.05) from that for 222 patients with disorders other than cardiovascular and renal. In 69 patients with manifest congestive heart failure (NYHA stages II-IV), 65 had increased cGMP values. Using the above cutoff value for cGMP gave diagnostic sensitivity of 94.2% and specificity of 93.7%. Plasma cGMP may thus provide an alternative for routine clinical measurements of ANP in cardiac diseases in the absence of renal disorders.


2002 ◽  
Vol 16 (2) ◽  
pp. 113-120 ◽  
Author(s):  
S.K. Yadav ◽  
S. Sehgal

Spinach ( Spinacia oleracia) and amaranth ( Amaranthus tricolor) leaves were stored in polyethylene bags and without packing for 24 and 48 hours in a refrigerator at 5°C and 30°C in polyethylene bags. The fresh leaves were also dried (oven and sun), blanched (5, 10 and 15 min) and cooked in an open pan and a pressure cooker. The processed leaves were analysed for total iron, its availability and antinutrient content. The iron content of these leaves varied from 26.54 to 34.14 mg/l00g, dry weight and its HCl-extractability and in vitro availability were 62.11–67.18% and 3.03–3.97% of total respectively. Drying and storage had no significant effect on total iron content, Hel-extractability and availability ( in vitro), while blanching and cooking resulted in significant improvement of iron availability, and a significant reduction in oxalic acid content, while only blanching significantly reduced phytic acid and polyphenol contents. Thus cooking and blanching are good ways to improve HCl-extractability and in vitro availability of iron.


2006 ◽  
Vol 108 (1) ◽  
pp. 91-94 ◽  
Author(s):  
J. Lora ◽  
M.A. Pérez de Oteyza ◽  
P. Fuentetaja ◽  
J.I. Hormaza

2005 ◽  
Vol 25 (5) ◽  
pp. 450-456 ◽  
Author(s):  
Danilo D. Fernando ◽  
Javonna L. Richards ◽  
Julie R. Kikkert

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