scholarly journals Effects of Pb and Zn toxicity on chlorophyll fluorescence and biomass production of Koelreuteria paniculata and Zelkova schneideriana young plants

2019 ◽  
Vol 57 (2) ◽  
pp. 688-697 ◽  
Author(s):  
X.H. HUANG ◽  
F. ZHU ◽  
W.D. YAN ◽  
X.Y. CHEN ◽  
G.J. WANG ◽  
...  
Keyword(s):  
Chlorophyll Fluorescence ◽  
Biomass Production ◽  
Zn Toxicity ◽  
Koelreuteria Paniculata

Effects of Pb stress on chlorophyll fluorescence of Schima superba and Koelreuteria paniculata seedling based on Lake-model

2018 ◽  
Vol 38 (4) ◽  
Author(s):  
黄鑫浩 HUANG Xinhao ◽  
朱凡 ZHU Fan ◽  
胡丰姣 HU Fengjiao ◽  
梁惠子 LIANG Huizi ◽  
王仁杰 WANG Renjie ◽  
...  
Keyword(s):  
Chlorophyll Fluorescence ◽  
Schima Superba ◽  
Pb Stress ◽  
Lake Model ◽  
Koelreuteria Paniculata

Optimization of biomass production with enhanced bioactive compound content by the medicinal mushroom Ganoderma australe under submerged culture

Planta Medica ◽  
2011 ◽  
Vol 77 (12) ◽  
Author(s):  
LM Papaspyridi ◽  
E Topakas ◽  
N Aligiannis ◽  
P Christakopoulos ◽  
AL Skaltsounis ◽  
...  
Keyword(s):  
Biomass Production ◽  
Submerged Culture ◽  
Bioactive Compound ◽  
Medicinal Mushroom ◽  
Ganoderma Australe

Quantification of small-scale heterogeneity in aquatic aminopeptidase activity

2020 ◽  
Vol 84 ◽  
pp. 127-140
Author(s):  
BM Gaas ◽  
JW Ammerman
Keyword(s):  
Chlorophyll Fluorescence ◽  
Leucine Aminopeptidase ◽  
Hudson River ◽  
Aminopeptidase Activity ◽  
Small Scale ◽  
Analysis Instrument ◽  
Sequential Samples ◽  
Degree Of Confidence ◽  
The Mean ◽  
Hydrolysis Of

Leucine aminopeptidase (LAP) is one of the enzymes involved in the hydrolysis of peptides, and is sometimes used to indicate potential nitrogen limitation in microbes. Small-scale variability has the potential to confound interpretation of underlying patterns in LAP activity in time or space. An automated flow-injection analysis instrument was used to address the small-scale variability of LAP activity within contiguous regions of the Hudson River plume (New Jersey, USA). LAP activity had a coefficient of variation (CV) of ca. 0.5 with occasional values above 1.0. The mean CVs for other biological parameters—chlorophyll fluorescence and nitrate concentration—were similar, and were much lower for salinity. LAP activity changed by an average of 35 nmol l-1 h-1 at different salinities, and variations in LAP activity were higher crossing region boundaries than within a region. Differences in LAP activity were ±100 nmol l-1 h-1 between sequential samples spaced <10 m apart. Variogram analysis indicated an inherent spatial variability of 52 nmol l-1 h-1 throughout the study area. Large changes in LAP activity were often associated with small changes in salinity and chlorophyll fluorescence, and were sensitive to the sampling frequency. This study concludes that LAP measurements in a sample could realistically be expected to range from zero to twice the average, and changes between areas or times should be at least 2-fold to have some degree of confidence that apparent patterns (or lack thereof) in activity are real.

Biomass production of weeds on the winter wheat stubble in long-term fertilization field experiment

2005 ◽  
Vol 33 (1) ◽  
pp. 251-254 ◽  
Author(s):  
Éva Lehoczky ◽  
András Kismányoky ◽  
Tamás Kismányoky
Keyword(s):  
Winter Wheat ◽  
Field Experiment ◽  
Biomass Production ◽  
Wheat Stubble
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