Bansh N. Singh, Padmanabh Dwivedi, Birinchi K. Sarma, Gopal S. Singh, Harikesh B. Singh
Abstract
Trichoderma
spp., are saprophytic fungi that can improve plant growth through increased nutrient acquisition and change in the root architecture. In the present study, we demonstrate thatTrichoderma asperellumT42 mediate enhancement in host biomass, total nitrogen content, nitric oxide (NO) production and cytosolic Ca2+accumulation in tobacco. T42 inoculation enhanced lateral root, root hair length, root hair density and root/shoot dry mass in tobacco under deprived nutrients condition. Interestingly, these growth attributes were further elevated in presence of T42 and supplementation of NO3-and NH4+nutrients to tobacco at 40 and 70 days, particularly in NO3-supplementation, whereas no significant increment was observed innia30mutant. In addition, NO production was more in tobacco roots in T42 inoculated plants fed with NO3-nutrient confirming NO generation was dependent on NR pathway. NO3-dependent NO production contributed to increase in lateral root initiation, Ca2+accumulation and activities of nitrate transporters (NRTs) in tobacco. Higher activities of several NRT genes in response to T42 and N nutrients and suppression of ammonium transporter (AMT1) suggested that induction of high affinity NRTs help NO3-acquisition through roots of tobacco. Among the NRTsNRT2.1andNRT2.2were more up-regulated compared to the other NRTs. Addition of sodium nitroprusside (SNP), relative to those supplied with NO3-/NH4+nutrition and T42 treated plants singly, and with application of NO inhibitor, cPTIO, confirmed the altered NO fluorescence intensity in tobacco roots. Our findings suggest that T42 promoted plant growth significantly ant N content in the tobacco plants grown under N nutrients, notably higher in NO3-, providing insight of the strategy for not only tobacco but probably for other crops as well to adapt to fluctuating nitrate availability in soil.
Pharmacology, Toxicology and Pharmaceutical Science
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Unspecified
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Other
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Unknown
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Attention Score in Context
Attention Score in Context
This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 20 May 2019.
All research outputs
#12,871,062
of 23,023,224 outputs
Outputs from Frontiers in Plant Science
#5,245
of 20,547 outputs
Outputs of similar age
#156,647
of 331,055 outputs
Outputs of similar age from Frontiers in Plant Science
#169
of 467 outputs
Altmetric has tracked 23,023,224 research outputs across all sources so far. This one is in the 43rd percentile – i.e., 43% of other outputs scored the same or lower than it.
So far Altmetric has tracked 20,547 research outputs from this source. They receive a mean Attention Score of 4.0. This one has gotten more attention than average, scoring higher than 73% of its peers.
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We're also able to compare this research output to 467 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 63% of its contemporaries.
