ELIZA

return kwic search for growth out of >500 occurrences
309169 occurrences (No.70 in the rank) during 5 years in the PubMed. [cache]

336) By using random sampling in the ensuing flux space, we found that storage of glycogen or exudation of organic acids are favored when the growth is nitrogen limited, while exudation of amino acids becomes more likely when phosphate is the limiting resource.

--- ABSTRACT ---

PMID:33633777 DOI:10.3389/fgene.2021.586293

2021 Frontiers in genetics

* Dynamic Allocation of Carbon Storage and Nutrient-Dependent Exudation in a Revised Genome-Scale Model of Prochlorococcus.

- Microbial life in the oceans impacts the entire marine ecosystem, global biogeochemistry and climate. The marine cyanobacterium Prochlorococcus, an abundant component of this ecosystem, releases a significant fraction of the carbon fixed through photosynthesis, but the amount, timing and molecular composition of released carbon are still poorly understood. These depend on several factors, including nutrient availability, light intensity and glycogen storage. Here we combine multiple computational approaches to provide insight into carbon storage and exudation in Prochlorococcus. First, with the aid of a new algorithm for recursive filling of metabolic gaps (ReFill), and through substantial manual curation, we extended an existing genome-scale metabolic model of Prochlorococcus MED4. In this revised model (iSO595), we decoupled glycogen biosynthesis/degradation from growth, thus enabling dynamic allocation of carbon storage. In contrast to standard implementations of flux balance modeling, we made use of forced influx of carbon and light into the cell, to recapitulate overflow metabolism due to the decoupling of photosynthesis and carbon fixation from growth during nutrient limitation. By using random sampling in the ensuing flux space, we found that storage of glycogen or exudation of organic acids are favored when the growth is nitrogen limited, while exudation of amino acids becomes more likely when phosphate is the limiting resource. We next used COMETS to simulate day-night cycles and found that the model displays dynamic glycogen allocation and exudation of organic acids. The switch from photosynthesis and glycogen storage to glycogen depletion is associated with a redistribution of fluxes from the Entner-Doudoroff to the Pentose Phosphate pathway. Finally, we show that specific gene knockouts in iSO595 exhibit dynamic anomalies compatible with experimental observations, further demonstrating the value of this model as a tool to probe the metabolic dynamic of Prochlorococcus.

--- ABSTRACT END ---

[
right
kwic]

[frequency of next (right) word to growth]

(1)85 and	(12)4 performance	(25)2 as	(36)2 hormone
(2)71 factor	(13)4 phase	(26)2 compared	(37)2 lean
(3)51 of	(14)4 rate	(27)2 conditions	(38)2 on
(4)33 in	(15)4 restriction	(28)2 curve	(39)2 response
(5)26 null	(16)3 factor,	(29)2 curves	(40)2 stage
(6)12 inhibition	(19)3 failure	(30)2 defect	(41)2 the
(7)8 factors	(20)3 is	(31)2 during	(42)2 we
(8)7 plate	(21)3 rates,	(32)2 environmental	(43)2 were
(9)5 by	(22)3 was	(33)2 factor-beta
(10)4 factor-1	(23)3 will	(34)2 for
(11)4 mindset	(24)2 are	(35)2 functions

add keyword

--- 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 ---