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309169 occurrences (No.70 in the rank) during 5 years in the PubMed. [no cache] 500 found

396) growth with the EC50 (concentration for 50% of maximal effect) of 0.74 ± 0.01 and 0.3 ± 0.01 mg/L, respectively.

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PMID:24519877 DOI:10.1002/tox.21964

2015 Environmental toxicology

* The influence of humic acid on the toxicity of nano-ZnO and Zn2+ to the Anabaena sp.

- This study explored the effects of humic acid (HA) on the toxicity of ZnO nanoparticles (nano-ZnO) and Zn(2+) to Anabaena sp. Typical chlorophyll fluorescence parameters, including effective quantum yield, photosynthetic efficiency and maximal electron transport rate, were measured by a pulse-amplitude modulated fluorometer. Results showed that nano-ZnO and Zn(2+) could inhibit Anabaena sp. growth with the EC50 (concentration for 50% of maximal effect) of 0.74 ± 0.01 and 0.3 ± 0.01 mg/L, respectively. In the presence of 3.0 mg/L of HA, EC50 of nano-ZnO increased to 1.15 ± 0.04 mg/L and EC50 of Zn(2+) was still 0.3 ± 0.01 mg/L. Scanning electron microscopy observation revealed that HA prevented the adhesion of nano-ZnO on the algae cells due to the increased electrostatic repulsion. The generation of intracellular reactive oxygen species and cellular lipid peroxidation were significantly limited by HA. Nano-ZnO had more damage to the cell membrane than Zn(2+) did, which could be proven by the malondialdehyde content in Anabaena sp. cells. © 2014 Wiley Periodicals, Inc. Environ Toxicol 30: 895-903, 2015.

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(1)69 and	(12)5 at	(25)3 models	(36)2 model
(2)48 factor	(13)4 but	(26)3 or	(37)2 modeling
(3)48 of	(14)4 during	(27)3 traits	(38)2 outcomes
(4)41 null	(15)4 factor,	(28)3 trajectories	(39)2 phase
(5)32 in	(17)4 patterns	(29)2 among	(40)2 properties
(6)25 factors	(18)4 plate	(30)2 are	(41)2 responses
(7)9 inhibition	(19)4 response	(31)2 as	(42)2 restriction
(8)8 rate	(20)4 was	(32)2 dynamics	(43)2 stunting
(9)6 factors,	(21)3 cone	(33)2 effects	(44)2 to
(10)6 rates	(22)3 curve	(34)2 forest	(45)2 velocities
(11)5 arrest	(23)3 factor-C	(35)2 hormone	(46)2 were

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--- WordNet output for growth --- =>茂み, 成長, 増加, 発展, 栽培, 腫よう, 成長物 Overview of noun growth The noun growth has 7 senses (first 5 from tagged texts) 1. (37) growth, growing, maturation, development, ontogeny, ontogenesis -- ((biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level; "he proposed an indicator of osseous development in children") 2. (20) growth -- (a progression from simpler to more complex forms; "the growth of culture") 3. (3) increase, increment, growth -- (a process of becoming larger or longer or more numerous or more important; "the increase in unemployment"; "the growth of population") 4. (3) growth -- (vegetation that has grown; "a growth of trees"; "the only growth was some salt grass") 5. (1) emergence, outgrowth, growth -- (the gradual beginning or coming forth; "figurines presage the emergence of sculpture in Greece") 6. growth -- ((pathology) an abnormal proliferation of tissue (as in a tumor)) 7. growth -- (something grown or growing; "a growth of hair") --- WordNet end ---