Paper · 2018 · Planta

Efficacy of biological agents and compost on growth and resistance of tomatoes to late blight

Amirhossein Bahramisharif; Laura E. Rose

9
claims
17
verbatim quotes
57
citations
3
research areas
✓
Open access · cc-by

Abstract

MAIN CONCLUSION: This study identified biocontrol measures for improving plant quality and resistance under biotic stress caused by the most devastating pathogen in tomato production. The management of plant diseases are dependent on a variety of factors. Two important variables are the soil quality and its bacterial/fungal community. However, the interaction of these factors is not well understood and remains problematic in producing healthy crops. Here, the effect of oak-bark compost, Bacillus subtilis subsp. subtilis, Trichoderma harzianum and two commercial products (FZB24 and FZB42) were investigated on tomato growth, production of metabolites and resistance under biotic stress condition (infection with Phytophthora infestans). Oak-bark compost, B. subtilis subsp. subtilis, and T. harzianum significantly enhanced plant growth and immunity when exposed to P. infestans. However, the commercial products were not as effective in promoting growth, with FZB42 having the weakest protection. Furthermore, elevated levels of anthocyanins did not correlate with enhanced plant resistance. Overall, the most effective and consistent plant protection was obtained when B. subtilis subsp. subtilis was combined with oak-bark compost. In contrast, the combination of T. harzianum and oak-bark compost resulted in increased disease severity. The use of compost in combination with bio-agents should, therefore, be evaluated carefully for a reliable and consistent tomato protection.

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 9

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Oak-bark compost enhanced tomato growth and immunity under P. infestans infection.

Treatment
Oak-bark composte0
Interactor
P. infestansPhytophthora infestanse0pathogen
Outcome
plant growth and immunitye0
Direction
enhancede0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Phytophthora infestans
Phytophthora infestans · InteractorHoward F. Schwartz, Colorado State University, United States · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Oak-bark compost, B. subtilis subsp. subtilis, and T. harzianum significantly enhanced plant growth and immunity when exposed to P. infestans”

✓ located verbatim in the source · abstract, characters 743–884 · show in text ↑
t0

“tomatoes”

✓ located verbatim in the source · title, characters 70–78 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

B. subtilis subsp. subtilis enhanced tomato growth and immunity under P. infestans infection.

Treatment
B. subtilis subsp. subtilise0
Interactor
P. infestansPhytophthora infestanse0pathogen
Second interactor
B. subtilis subsp. subtilisBacillus subtilis subsp. subtilise0biocontrol_agent
Outcome
plant growth and immunitye0
Direction
enhancede0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Phytophthora infestans
Phytophthora infestans · InteractorHoward F. Schwartz, Colorado State University, United States · CC BY 3.0 us · Wikimedia Commons ↗
Bacillus subtilis subsp. subtilis
Bacillus subtilis subsp. subtilis · Second interactorAgricultural Research Service (NRRL)Culture Collection · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Oak-bark compost, B. subtilis subsp. subtilis, and T. harzianum significantly enhanced plant growth and immunity when exposed to P. infestans”

✓ located verbatim in the source · abstract, characters 743–884 · show in text ↑
t0

“tomatoes”

✓ located verbatim in the source · title, characters 70–78 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

T. harzianum enhanced tomato growth and immunity under P. infestans infection.

Treatment
T. harzianume0
Interactor
P. infestansPhytophthora infestanse0pathogen
Second interactor
T. harzianumTrichoderma harzianume0biocontrol_agent
Outcome
plant growth and immunitye0
Direction
enhancede0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Phytophthora infestans
Phytophthora infestans · InteractorHoward F. Schwartz, Colorado State University, United States · CC BY 3.0 us · Wikimedia Commons ↗
Trichoderma harzianum
Trichoderma harzianum · Second interactorUS Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Oak-bark compost, B. subtilis subsp. subtilis, and T. harzianum significantly enhanced plant growth and immunity when exposed to P. infestans”

✓ located verbatim in the source · abstract, characters 743–884 · show in text ↑
t0

“tomatoes”

✓ located verbatim in the source · title, characters 70–78 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Commercial products were less effective at promoting tomato growth.

Treatment
the commercial productse0
Outcome
growthe0
Direction
not as effectivee0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the commercial products were not as effective in promoting growth”

✓ located verbatim in the source · abstract, characters 895–960 · show in text ↑
t0

“tomatoes”

✓ located verbatim in the source · title, characters 70–78 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

FZB42 gave the weakest protection of tomato.

Treatment
FZB42e0
Outcome
protectione0
Direction
weakeste0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“FZB42 having the weakest protection”

✓ located verbatim in the source · abstract, characters 967–1002 · show in text ↑
t0

“tomatoes”

✓ located verbatim in the source · title, characters 70–78 · show in text ↑
Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Elevated anthocyanins did not correlate with enhanced tomato resistance.

Compound
anthocyaninse0
Outcome
plant resistancee0
Direction
did not correlatee0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“elevated levels of anthocyanins did not correlate with enhanced plant resistance”

✓ located verbatim in the source · abstract, characters 1017–1097 · show in text ↑
t0

“tomatoes”

✓ located verbatim in the source · title, characters 70–78 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combining B. subtilis subsp. subtilis with oak-bark compost gave the most effective and consistent tomato protection.

Treatment
B. subtilis subsp. subtilis was combined with oak-bark composte0
Interactor
B. subtilis subsp. subtilisBacillus subtilis subsp. subtilise0biocontrol_agent
Outcome
plant protectione0
Direction
most effectivee0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Bacillus subtilis subsp. subtilis
Bacillus subtilis subsp. subtilis · InteractorAgricultural Research Service (NRRL)Culture Collection · Public domain · Wikimedia Commons ↗

Verbatim

e0

“the most effective and consistent plant protection was obtained when B. subtilis subsp. subtilis was combined with oak-bark compost”

✓ located verbatim in the source · abstract, characters 1108–1239 · show in text ↑
t0

“tomatoes”

✓ located verbatim in the source · title, characters 70–78 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Combining T. harzianum with oak-bark compost increased disease severity in tomato.

Treatment
the combination of T. harzianum and oak-bark composte0
Interactor
T. harzianumTrichoderma harzianume0biocontrol_agent
Outcome
disease severitye0
Direction
increasede0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Trichoderma harzianum
Trichoderma harzianum · InteractorUS Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e0

“the combination of T. harzianum and oak-bark compost resulted in increased disease severity”

✓ located verbatim in the source · abstract, characters 1254–1345 · show in text ↑
t0

“tomatoes”

✓ located verbatim in the source · title, characters 70–78 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors recommend careful evaluation of compost with bio-agents for consistent tomato protection.

Outcome
The use of compost in combination with bio-agents should, therefore, be evaluated carefullye0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The use of compost in combination with bio-agents should, therefore, be evaluated carefully for a reliable and consistent tomato protection”

✓ located verbatim in the source · abstract, characters 1347–1486 · show in text ↑

Trichoderma harzianum · disease · Solanum lycopersicum (tomato)Positive and negative results

45 papers: 42 positive, 3 negative or no effect

2 papers in the same direction as this paper · 42 in the opposite direction

  1. positive
  2. positive
  3. positive

41 papers more in this group

See all 45 papers →

Trichoderma harzianum · Phytophthora infestans · Solanum lycopersicum (tomato)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

fertilization · control · Solanum lycopersicum (tomato)Positive and negative results

22 papers: 19 positive, 3 negative or no effect

18 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. no effect
  3. negative

18 papers more in this group

See all 22 papers →

fertilization · disease · Solanum lycopersicum (tomato)Positive and negative results

111 papers: 94 positive, 17 negative or no effect

16 papers in the same direction as this paper · 94 in the opposite direction

  1. positive
  2. positive
  3. positive

107 papers more in this group

See all 111 papers →

fertilization · Phytophthora infestans · Solanum lycopersicum (tomato)Results agree

6 papers: 6 positive, 0 negative or no effect

5 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

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.