Paper · 2023 · Cereal Research Communications

Zinc solubilizing bacteria synergize the effect of zinc sulfate on growth, yield and grain zinc content of rice (Oryza sativa)

Muhammad Shakeel; Fauzia Yusuf Hafeez; Imran Riaz Malik; et al.

8
claims
16
verbatim quotes
16
citations
3
research areas
✓
Open access · cc-by

Abstract

Abstract Zinc solubilizing bacteria inhabiting root endosphere possesses great potential to enhance plant yield by solubilizing the nutrients. The potential of Zn solubilizing bacteria Bacillus sp. SH-10 and Bacillus cereus SH-17 to improve yield and grain zinc content of rice was investigated under different regimes of individual and co-inoculation in the presence and absence of chemical fertilizer zinc sulfate (ZnSO 4 ). The strains were applied to the rice varieties basmati 385 and super basmati under field conditions for two consecutive years. A significantly improved growth of rice plants, such as plant height (102–118 cm), number of tillers per plant (8.5–11.5), chlorophyll content (29.5–35.1), zinc requiring enzymes, i.e., superoxide dismutase (396–570 per gram fresh weight (g −1 FW)), carbonic anhydrase activity (CA) (10–15.06 U g −1 FW) and grain yield (3.0–3.8 tons ha −1 ), was observed in the plants inoculated with Bacillus sp. in the presence of chemical fertilizer (ZnSO 4 ). Consortium of zinc solubilizing bacteria also caused higher grain Zn content (25.0–30.5 mg kg −1 ) of the rice varieties basmati 385 and super basmati as compared to that of un-inoculated plants. Hence, it can be concluded that Zn solubilizing bacteria has immense potential to be used as agricultural crop inoculants as they synergize the effect of chemical Zn, increase yield and improve the nutritional value of crops.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 8

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Bacillus inoculation with zinc sulfate significantly improved rice plant height, reaching 102–118 cm.

Treatment
inoculated with Bacillus sp. in the presence of chemical fertilizer (ZnSO 4 )e0
Interactor
Bacillus sp.e0symbiont
Outcome
plant heighte0
Direction
improvede0
Value
102–118 cme0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“rice (Oryza sativa)”

✓ located verbatim in the source · title, characters 107–126 · show in text ↑
e0

“A significantly improved growth of rice plants, such as plant height (102–118 cm), number of tillers per plant (8.5–11.5), chlorophyll content (29.5–35.1), zinc requiring enzymes, i.e., superoxide dismutase (396–570 per gram fresh weight (g −1 FW)), carbonic anhydrase activity (CA) (10–15.06 U g −1 FW) and grain yield (3.0–3.8 tons ha −1 ), was observed in the plants inoculated with Bacillus sp. in the presence of chemical fertilizer (ZnSO 4 ).”

✓ located verbatim in the source · abstract, characters 554–1002 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Bacillus inoculation with zinc sulfate significantly improved tiller number to 8.5–11.5 per plant.

Treatment
inoculated with Bacillus sp. in the presence of chemical fertilizer (ZnSO 4 )e0
Interactor
Bacillus sp.e0symbiont
Outcome
number of tillers per plante0
Direction
improvede0
Value
8.5–11.5e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“rice (Oryza sativa)”

✓ located verbatim in the source · title, characters 107–126 · show in text ↑
e0

“A significantly improved growth of rice plants, such as plant height (102–118 cm), number of tillers per plant (8.5–11.5), chlorophyll content (29.5–35.1), zinc requiring enzymes, i.e., superoxide dismutase (396–570 per gram fresh weight (g −1 FW)), carbonic anhydrase activity (CA) (10–15.06 U g −1 FW) and grain yield (3.0–3.8 tons ha −1 ), was observed in the plants inoculated with Bacillus sp. in the presence of chemical fertilizer (ZnSO 4 ).”

✓ located verbatim in the source · abstract, characters 554–1002 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Bacillus inoculation with zinc sulfate significantly improved chlorophyll content to 29.5–35.1.

Treatment
inoculated with Bacillus sp. in the presence of chemical fertilizer (ZnSO 4 )e0
Interactor
Bacillus sp.e0symbiont
Outcome
chlorophyll contente0
Direction
improvede0
Value
29.5–35.1e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“rice (Oryza sativa)”

✓ located verbatim in the source · title, characters 107–126 · show in text ↑
e0

“A significantly improved growth of rice plants, such as plant height (102–118 cm), number of tillers per plant (8.5–11.5), chlorophyll content (29.5–35.1), zinc requiring enzymes, i.e., superoxide dismutase (396–570 per gram fresh weight (g −1 FW)), carbonic anhydrase activity (CA) (10–15.06 U g −1 FW) and grain yield (3.0–3.8 tons ha −1 ), was observed in the plants inoculated with Bacillus sp. in the presence of chemical fertilizer (ZnSO 4 ).”

✓ located verbatim in the source · abstract, characters 554–1002 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Bacillus inoculation with zinc sulfate significantly improved superoxide dismutase to 396–570 per gram fresh weight.

Treatment
inoculated with Bacillus sp. in the presence of chemical fertilizer (ZnSO 4 )e0
Interactor
Bacillus sp.e0symbiont
Gene
superoxide dismutasee0
Outcome
superoxide dismutasee0
Direction
improvede0
Value
396–570 per gram fresh weight (g −1 FW)e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“rice (Oryza sativa)”

✓ located verbatim in the source · title, characters 107–126 · show in text ↑
e0

“A significantly improved growth of rice plants, such as plant height (102–118 cm), number of tillers per plant (8.5–11.5), chlorophyll content (29.5–35.1), zinc requiring enzymes, i.e., superoxide dismutase (396–570 per gram fresh weight (g −1 FW)), carbonic anhydrase activity (CA) (10–15.06 U g −1 FW) and grain yield (3.0–3.8 tons ha −1 ), was observed in the plants inoculated with Bacillus sp. in the presence of chemical fertilizer (ZnSO 4 ).”

✓ located verbatim in the source · abstract, characters 554–1002 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Bacillus inoculation with zinc sulfate significantly improved carbonic anhydrase activity to 10–15.06 U g −1 FW.

Treatment
inoculated with Bacillus sp. in the presence of chemical fertilizer (ZnSO 4 )e0
Interactor
Bacillus sp.e0symbiont
Gene
carbonic anhydrasee0
Outcome
carbonic anhydrase activitye0
Direction
improvede0
Value
10–15.06 U g −1 FWe0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“rice (Oryza sativa)”

✓ located verbatim in the source · title, characters 107–126 · show in text ↑
e0

“A significantly improved growth of rice plants, such as plant height (102–118 cm), number of tillers per plant (8.5–11.5), chlorophyll content (29.5–35.1), zinc requiring enzymes, i.e., superoxide dismutase (396–570 per gram fresh weight (g −1 FW)), carbonic anhydrase activity (CA) (10–15.06 U g −1 FW) and grain yield (3.0–3.8 tons ha −1 ), was observed in the plants inoculated with Bacillus sp. in the presence of chemical fertilizer (ZnSO 4 ).”

✓ located verbatim in the source · abstract, characters 554–1002 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Bacillus inoculation with zinc sulfate significantly improved grain yield to 3.0–3.8 tons ha −1.

Treatment
inoculated with Bacillus sp. in the presence of chemical fertilizer (ZnSO 4 )e0
Interactor
Bacillus sp.e0symbiont
Outcome
grain yielde0
Direction
improvede0
Value
3.0–3.8 tons ha −1e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“rice (Oryza sativa)”

✓ located verbatim in the source · title, characters 107–126 · show in text ↑
e0

“A significantly improved growth of rice plants, such as plant height (102–118 cm), number of tillers per plant (8.5–11.5), chlorophyll content (29.5–35.1), zinc requiring enzymes, i.e., superoxide dismutase (396–570 per gram fresh weight (g −1 FW)), carbonic anhydrase activity (CA) (10–15.06 U g −1 FW) and grain yield (3.0–3.8 tons ha −1 ), was observed in the plants inoculated with Bacillus sp. in the presence of chemical fertilizer (ZnSO 4 ).”

✓ located verbatim in the source · abstract, characters 554–1002 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The bacterial consortium raised grain zinc content to 25.0–30.5 mg kg −1 versus uninoculated plants.

Material
basmati 385 and super basmatie0
Treatment
Consortium of zinc solubilizing bacteriae0
Outcome
grain Zn contente0
Direction
highere0
Value
25.0–30.5 mg kg −1e0
Comparator
un-inoculated plantse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“rice (Oryza sativa)”

✓ located verbatim in the source · title, characters 107–126 · show in text ↑
e0

“Consortium of zinc solubilizing bacteria also caused higher grain Zn content (25.0–30.5 mg kg −1 ) of the rice varieties basmati 385 and super basmati as compared to that of un-inoculated plants.”

✓ located verbatim in the source · abstract, characters 1003–1198 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors propose zinc-solubilizing bacteria as crop inoculants to increase yield and nutritional value.

Treatment
Zn solubilizing bacteriae0
Outcome
used as agricultural crop inoculantse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“rice (Oryza sativa)”

✓ located verbatim in the source · title, characters 107–126 · show in text ↑
e0

“Zn solubilizing bacteria has immense potential to be used as agricultural crop inoculants as they synergize the effect of chemical Zn, increase yield and improve the nutritional value of crops.”

✓ located verbatim in the source · abstract, characters 1231–1424 · show in text ↑

zinc sulfate · yield · Oryza sativa (rice)Results differ

145 papers: 144 positive, 1 negative or no effect

143 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

141 papers more in this group

See all 145 papers →

zinc atom · nutrient: content · Oryza sativa (rice)Results differ

276 papers: 254 positive, 22 negative or no effect

253 papers in the same direction as this paper · 21 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

272 papers more in this group

See all 276 papers →

zinc sulfate · growth · Oryza sativa (rice)Positive and negative results

50 papers: 48 positive, 2 negative or no effect

47 papers in the same direction as this paper · 2 in the opposite direction

  1. no effect
  2. negative
  3. positive

46 papers more in this group

See all 50 papers →

zinc sulfate · physiology: antioxidant enzymes · Oryza sativa (rice)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

zinc sulfate · physiology: enzyme activity · Oryza sativa (rice)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

zinc sulfate · physiology: pigments · Oryza sativa (rice)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

fertilization · physiology: antioxidant enzymes · Oryza sativa (rice)Positive and negative results

22 papers: 21 positive, 1 negative or no effect

20 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive

18 papers more in this group

See all 22 papers →

inoculation · physiology: enzyme activity · Oryza sativa (rice)Positive and negative results

23 papers: 22 positive, 1 negative or no effect

21 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive

19 papers more in this group

See all 23 papers →

8 of 17 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.