Abstract
Soil microorganisms and their metabolites may affect crop growth. Spring No.1 Rice was used as tested rice seeds, and Streptomyces JD211 and its solid agents are used as tested strains. Through platter experiment we studied the effects of Streptomyces JD211 on the seedling quality and microbial flora. Results showed that 10 g/kg agents played a very significant role in promoting the growth of rice seedlings, and greatly improved the various physiological conditions of rice seedlings, including the seedling plants height, leaf age, pseudo-stem width, leaf width, total number of roots, white roots,root length, main root length, fresh weight, dry weight, respectively, compared with the control group, indexes improved by25.71%, 32.42%, 54.95%, 49.53%, 49.28%, 50.84%, 14.84%, 28.42%, 157.06%, 145.54%. Chlorophyll, root activity and soluble sugar content increased by 50.00%, 19.07%, 29.75%, respectively. After Streptomyces JD211 was applied, the number of soil bacteria and fungi reduced, while the number of actinomycetes increased, and the number of nitrifying bacteria and bacterial nitrification bacteria declined, the number of aerobic cellulose-decomposing bacteria, silicate bacteria and organic phosphorus bacteria improved. Moreover, changes of the function of soil microflora accelerated the soil nutrient cycling process and enhanced the rice nutrient absorption capacity, thereby promoted the growth of rice.
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Claims 19
Claim · model-written summary
JD211 increased rice seedling height by 25.71%.
- Taxon
- rice
Oryza sativat0 - Treatment
- Streptomyces JD211t0
- Outcome
- seedling plants heighte0
- Direction
- improvede0
- Value
- 25.71%e0
- Comparator
- control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seedling plants height, leaf age, pseudo-stem width, leaf width, total number of roots, white roots,root length, main root length, fresh weight, dry weight, respectively, compared with the control group, indexes improved by25.71%, 32.42%, 54.95%, 49.53%, 49.28%, 50.84%, 14.84%, 28.42%, 157.06%, 145.54%.”
t0“Streptomyces JD211 on the seedling growth of rice”
Claim · model-written summary
JD211 increased rice leaf age by 32.42%.
- Taxon
- riceOryza sativat0
- Treatment
- Streptomyces JD211t0
- Outcome
- leaf agee0
- Direction
- improvede0
- Value
- 32.42%e0
- Comparator
- control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf age, pseudo-stem width, leaf width, total number of roots, white roots,root length, main root length, fresh weight, dry weight, respectively, compared with the control group, indexes improved by25.71%, 32.42%, 54.95%, 49.53%, 49.28%, 50.84%, 14.84%, 28.42%, 157.06%, 145.54%.”
t0“Streptomyces JD211 on the seedling growth of rice”
Claim · model-written summary
JD211 increased rice pseudostem width by 54.95%.
- Taxon
- riceOryza sativat0
- Treatment
- Streptomyces JD211t0
- Outcome
- pseudo-stem widthe0
- Direction
- improvede0
- Value
- 54.95%e0
- Comparator
- control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pseudo-stem width, leaf width, total number of roots, white roots,root length, main root length, fresh weight, dry weight, respectively, compared with the control group, indexes improved by25.71%, 32.42%, 54.95%, 49.53%, 49.28%, 50.84%, 14.84%, 28.42%, 157.06%, 145.54%.”
t0“Streptomyces JD211 on the seedling growth of rice”
Claim · model-written summary
JD211 increased rice leaf width by 49.53%.
- Taxon
- riceOryza sativat0
- Treatment
- Streptomyces JD211t0
- Outcome
- leaf widthe0
- Direction
- improvede0
- Value
- 49.53%e0
- Comparator
- control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf width, total number of roots, white roots,root length, main root length, fresh weight, dry weight, respectively, compared with the control group, indexes improved by25.71%, 32.42%, 54.95%, 49.53%, 49.28%, 50.84%, 14.84%, 28.42%, 157.06%, 145.54%.”
t0“Streptomyces JD211 on the seedling growth of rice”
Claim · model-written summary
JD211 increased total rice root number by 49.28%.
- Taxon
- riceOryza sativat0
- Treatment
- Streptomyces JD211t0
- Outcome
- total number of rootse0
- Direction
- improvede0
- Value
- 49.28%e0
- Comparator
- control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total number of roots, white roots,root length, main root length, fresh weight, dry weight, respectively, compared with the control group, indexes improved by25.71%, 32.42%, 54.95%, 49.53%, 49.28%, 50.84%, 14.84%, 28.42%, 157.06%, 145.54%.”
t0“Streptomyces JD211 on the seedling growth of rice”
Claim · model-written summary
JD211 increased white rice roots by 50.84%.
- Taxon
- riceOryza sativat0
- Treatment
- Streptomyces JD211t0
- Outcome
- white rootse0
- Direction
- improvede0
- Value
- 50.84%e0
- Comparator
- control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“white roots,root length, main root length, fresh weight, dry weight, respectively, compared with the control group, indexes improved by25.71%, 32.42%, 54.95%, 49.53%, 49.28%, 50.84%, 14.84%, 28.42%, 157.06%, 145.54%.”
t0“Streptomyces JD211 on the seedling growth of rice”
Claim · model-written summary
JD211 increased rice root length by 14.84%.
- Taxon
- riceOryza sativat0
- Treatment
- Streptomyces JD211t0
- Outcome
- root lengthe0
- Direction
- improvede0
- Value
- 14.84%e0
- Comparator
- control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root length, main root length, fresh weight, dry weight, respectively, compared with the control group, indexes improved by25.71%, 32.42%, 54.95%, 49.53%, 49.28%, 50.84%, 14.84%, 28.42%, 157.06%, 145.54%.”
t0“Streptomyces JD211 on the seedling growth of rice”
Claim · model-written summary
JD211 increased rice main root length by 28.42%.
- Taxon
- riceOryza sativat0
- Treatment
- Streptomyces JD211t0
- Outcome
- main root lengthe0
- Direction
- improvede0
- Value
- 28.42%e0
- Comparator
- control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“main root length, fresh weight, dry weight, respectively, compared with the control group, indexes improved by25.71%, 32.42%, 54.95%, 49.53%, 49.28%, 50.84%, 14.84%, 28.42%, 157.06%, 145.54%.”
t0“Streptomyces JD211 on the seedling growth of rice”
Claim · model-written summary
JD211 increased rice seedling fresh weight by 157.06%.
- Taxon
- riceOryza sativat0
- Treatment
- Streptomyces JD211t0
- Outcome
- fresh weighte0
- Direction
- improvede0
- Value
- 157.06%e0
- Comparator
- control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fresh weight, dry weight, respectively, compared with the control group, indexes improved by25.71%, 32.42%, 54.95%, 49.53%, 49.28%, 50.84%, 14.84%, 28.42%, 157.06%, 145.54%.”
t0“Streptomyces JD211 on the seedling growth of rice”
Claim · model-written summary
JD211 increased rice seedling dry weight by 145.54%.
- Taxon
- riceOryza sativat0
- Treatment
- Streptomyces JD211t0
- Outcome
- dry weighte0
- Direction
- improvede0
- Value
- 145.54%e0
- Comparator
- control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fresh weight, dry weight, respectively, compared with the control group, indexes improved by25.71%, 32.42%, 54.95%, 49.53%, 49.28%, 50.84%, 14.84%, 28.42%, 157.06%, 145.54%.”
t0“Streptomyces JD211 on the seedling growth of rice”
Claim · model-written summary
JD211 increased rice chlorophyll by 50.00%.
- Taxon
- riceOryza sativat0
- Treatment
- Streptomyces JD211t0
- Outcome
- Chlorophylle0
- Direction
- increasede0
- Value
- 50.00%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorophyll, root activity and soluble sugar content increased by 50.00%, 19.07%, 29.75%, respectively.”
t0“Streptomyces JD211 on the seedling growth of rice”
Claim · model-written summary
JD211 increased rice root activity by 19.07%.
- Taxon
- riceOryza sativat0
- Treatment
- Streptomyces JD211t0
- Outcome
- root activitye0
- Direction
- increasede0
- Value
- 19.07%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorophyll, root activity and soluble sugar content increased by 50.00%, 19.07%, 29.75%, respectively.”
t0“Streptomyces JD211 on the seedling growth of rice”
Claim · model-written summary
JD211 increased rice soluble sugar content by 29.75%.
- Taxon
- riceOryza sativat0
- Treatment
- Streptomyces JD211t0
- Outcome
- soluble sugar contente0
- Direction
- increasede0
- Value
- 29.75%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorophyll, root activity and soluble sugar content increased by 50.00%, 19.07%, 29.75%, respectively.”
t0“Streptomyces JD211 on the seedling growth of rice”
Claim · model-written summary
JD211 reduced soil bacteria and fungi numbers.
- Taxon
- riceOryza sativat0
- Treatment
- Streptomyces JD211e0
- Outcome
- number of soil bacteria and fungie0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After Streptomyces JD211 was applied, the number of soil bacteria and fungi reduced, while the number of actinomycetes increased”
t0“rice”
Claim · model-written summary
JD211 increased soil actinomycetes.
- Taxon
- riceOryza sativat0
- Treatment
- Streptomyces JD211e0
- Outcome
- number of actinomycetese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After Streptomyces JD211 was applied, the number of soil bacteria and fungi reduced, while the number of actinomycetes increased”
t0“rice”
Claim · model-written summary
JD211 reduced nitrifying bacteria and bacterial nitrification bacteria.
- Taxon
- riceOryza sativat0
- Treatment
- Streptomyces JD211t0
- Outcome
- number of nitrifying bacteria and bacterial nitrification bacteriae0
- Direction
- declinede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the number of nitrifying bacteria and bacterial nitrification bacteria declined”
t0“Streptomyces JD211 on the seedling growth of rice”
Claim · model-written summary
JD211 increased aerobic cellulose decomposing bacteria, silicate bacteria and organic phosphorus bacteria.
- Taxon
- riceOryza sativat0
- Treatment
- Streptomyces JD211t0
- Outcome
- number of aerobic cellulose-decomposing bacteria, silicate bacteria and organic phosphorus bacteriae0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the number of aerobic cellulose-decomposing bacteria, silicate bacteria and organic phosphorus bacteria improved.”
t0“Streptomyces JD211 on the seedling growth of rice”
Claim · model-written summary
JD211-associated soil microflora changes accelerated nutrient cycling.
- Taxon
- riceOryza sativae0
- Outcome
- soil nutrient cycling processe0
- Direction
- acceleratede0
- Qualifier
- changes of the function of soil microflorae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“changes of the function of soil microflora accelerated the soil nutrient cycling process and enhanced the rice nutrient absorption capacity, thereby promoted the growth of rice.”
Claim · model-written summary
JD211-associated microflora changes enhanced rice nutrient absorption capacity.
- Taxon
- riceOryza sativae0
- Outcome
- rice nutrient absorption capacitye0
- Direction
- enhancede0
- Qualifier
- changes of the function of soil microflorae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“changes of the function of soil microflora accelerated the soil nutrient cycling process and enhanced the rice nutrient absorption capacity, thereby promoted the growth of rice.”
The same questions in other papers
Streptomyces · growth · Oryza sativa (rice)Positive and negative results
12 papers in the same direction as this paper · 1 reporting no difference from an alternative
- no effect
- positive
- positive
10 papers more in this group
See all 14 papers →Streptomyces · molecular: metabolites · Oryza sativa (rice)Results agree
1 paper in the same direction as this paper
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.