Paper · 2025 · Agronomy

Inhibitory Effects and Underlying Mechanisms of a Selenium Compound Agent Against the Pathogenic Fungus Sclerotinia sclerotiorum Causing Sclerotinia Stem Rot in Brassica napus

Xiaojuan Zhang; Yangzi Hou; Xiuqi Ma; et al.

7
claims
22
verbatim quotes
0
citations
1
research areas
✓
Open access · cc-by

Abstract

Sclerotinia sclerotiorum (S. sclerotiorum), a necrotrophic phytopathogen, causes sclerotinia stem rot (SSR) in many crops like oilseed rape, resulting in severe economic losses. Developing eco-friendly compound fungicides has become a critical research priority. This study explored the combination of sodium selenite and cuminic acid to screen for the optimal mixing ratio and investigate its inhibitory effects and mechanisms against S. sclerotiorum. The results demonstrated that synergistic effects were observed with a 1:3 combination ratio of sodium selenite to cuminic acid. After treatment with the selenium compound agent, ultrastructural observations revealed that the hyphae of S. sclerotiorum became severely shriveled, deformed, and twisted. The agent significantly reduced oxalic acid production and the activities of polymethylgalacturonide (PMG) and carboxymethylcellulose enzymes (Cx), while increasing the exocytosis of nucleic acids and proteins from the mycelium. Foliar application of the selenium compound agent significantly reduced lesion areas in rapeseed. Combined with the results of transcriptome sequencing, this study suggests that the compound agent effectively inhibits the growth of S. sclerotiorum by disrupting its membrane system, reducing the activity of cell wall-degrading enzymes, and suppressing protein synthesis, etc. This research provides a foundation for developing environmentally friendly and effective fungicides to control S. sclerotiorum.

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 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A 1:3 combination of sodium selenite and cuminic acid showed synergistic effects.

Taxon
Brassica napusBrassica napust1
Treatment
1:3 combination ratio of sodium selenite to cuminic acide1
Interactor
S. sclerotiorumSclerotinia sclerotiorume0pathogen
Outcome
synergistic effectse1

Not reportedComparatorDirection

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

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗
Sclerotinia sclerotiorum
Sclerotinia sclerotiorum · InteractorRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t1

“Brassica napus”

✓ located verbatim in the source · title, characters 161–175 · show in text ↑
e1

“synergistic effects were observed with a 1:3 combination ratio of sodium selenite to cuminic acid”

✓ located verbatim in the source · abstract, characters 483–580 · show in text ↑
e0

“Sclerotinia sclerotiorum (S. sclerotiorum), a necrotrophic phytopathogen, causes sclerotinia stem rot (SSR) in many crops like oilseed rape”

✓ located verbatim in the source · abstract, characters 0–139 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The selenium compound agent made S. sclerotiorum hyphae severely shriveled, deformed and twisted.

Taxon
Brassica napusBrassica napust1
Treatment
selenium compound agente2
Interactor
S. sclerotiorumSclerotinia sclerotiorume2pathogen
Outcome
hyphae of S. sclerotiorum became severely shriveled, deformed, and twistede2

Not reportedComparatorDirection

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

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗
Sclerotinia sclerotiorum
Sclerotinia sclerotiorum · InteractorRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t1

“Brassica napus”

✓ located verbatim in the source · title, characters 161–175 · show in text ↑
e2

“After treatment with the selenium compound agent, ultrastructural observations revealed that the hyphae of S. sclerotiorum became severely shriveled, deformed, and twisted”

✓ located verbatim in the source · abstract, characters 582–753 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The selenium compound agent significantly reduced oxalic acid production by S. sclerotiorum.

Taxon
Brassica napusBrassica napust1
Treatment
selenium compound agente2
Interactor
S. sclerotiorumSclerotinia sclerotiorume0pathogen
Outcome
oxalic acid productione3
Direction
reducede3

Not reportedComparator

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

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗
Sclerotinia sclerotiorum
Sclerotinia sclerotiorum · InteractorRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t1

“Brassica napus”

✓ located verbatim in the source · title, characters 161–175 · show in text ↑
e2

“After treatment with the selenium compound agent, ultrastructural observations revealed that the hyphae of S. sclerotiorum became severely shriveled, deformed, and twisted”

✓ located verbatim in the source · abstract, characters 582–753 · show in text ↑
e3

“The agent significantly reduced oxalic acid production and the activities of polymethylgalacturonide (PMG) and carboxymethylcellulose enzymes (Cx)”

✓ located verbatim in the source · abstract, characters 755–901 · show in text ↑
e0

“Sclerotinia sclerotiorum (S. sclerotiorum), a necrotrophic phytopathogen, causes sclerotinia stem rot (SSR) in many crops like oilseed rape”

✓ located verbatim in the source · abstract, characters 0–139 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The selenium compound agent significantly reduced the activities of PMG and Cx enzymes of S. sclerotiorum.

Taxon
Brassica napusBrassica napust1
Treatment
selenium compound agente2
Interactor
S. sclerotiorumSclerotinia sclerotiorume0pathogen
Outcome
activities of polymethylgalacturonide (PMG) and carboxymethylcellulose enzymes (Cx)e3
Direction
reducede3

Not reportedComparator

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

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗
Sclerotinia sclerotiorum
Sclerotinia sclerotiorum · InteractorRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t1

“Brassica napus”

✓ located verbatim in the source · title, characters 161–175 · show in text ↑
e2

“After treatment with the selenium compound agent, ultrastructural observations revealed that the hyphae of S. sclerotiorum became severely shriveled, deformed, and twisted”

✓ located verbatim in the source · abstract, characters 582–753 · show in text ↑
e3

“The agent significantly reduced oxalic acid production and the activities of polymethylgalacturonide (PMG) and carboxymethylcellulose enzymes (Cx)”

✓ located verbatim in the source · abstract, characters 755–901 · show in text ↑
e0

“Sclerotinia sclerotiorum (S. sclerotiorum), a necrotrophic phytopathogen, causes sclerotinia stem rot (SSR) in many crops like oilseed rape”

✓ located verbatim in the source · abstract, characters 0–139 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The selenium compound agent increased the exocytosis of nucleic acids and proteins from the S. sclerotiorum mycelium.

Taxon
Brassica napusBrassica napust1
Treatment
selenium compound agente2
Interactor
S. sclerotiorumSclerotinia sclerotiorume0pathogen
Outcome
exocytosis of nucleic acids and proteins from the myceliume4
Direction
increasinge4

Not reportedComparator

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

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗
Sclerotinia sclerotiorum
Sclerotinia sclerotiorum · InteractorRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t1

“Brassica napus”

✓ located verbatim in the source · title, characters 161–175 · show in text ↑
e2

“After treatment with the selenium compound agent, ultrastructural observations revealed that the hyphae of S. sclerotiorum became severely shriveled, deformed, and twisted”

✓ located verbatim in the source · abstract, characters 582–753 · show in text ↑
e4

“while increasing the exocytosis of nucleic acids and proteins from the mycelium”

✓ located verbatim in the source · abstract, characters 903–982 · show in text ↑
e0

“Sclerotinia sclerotiorum (S. sclerotiorum), a necrotrophic phytopathogen, causes sclerotinia stem rot (SSR) in many crops like oilseed rape”

✓ located verbatim in the source · abstract, characters 0–139 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Foliar application of the selenium compound agent significantly reduced lesion areas on rapeseed.

Taxon
rapeseede5
Treatment
Foliar application of the selenium compound agente5
Interactor
S. sclerotiorumSclerotinia sclerotiorume0pathogen
Outcome
lesion arease5
Direction
reducede5

Not reportedComparator

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

Sclerotinia sclerotiorum
Sclerotinia sclerotiorum · InteractorRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t1

“Brassica napus”

✓ located verbatim in the source · title, characters 161–175 · show in text ↑
e5

“Foliar application of the selenium compound agent significantly reduced lesion areas in rapeseed”

✓ located verbatim in the source · abstract, characters 984–1080 · show in text ↑
e0

“Sclerotinia sclerotiorum (S. sclerotiorum), a necrotrophic phytopathogen, causes sclerotinia stem rot (SSR) in many crops like oilseed rape”

✓ located verbatim in the source · abstract, characters 0–139 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

The compound agent appears to inhibit S. sclerotiorum growth by disrupting its membrane system, reducing cell wall-degrading enzyme activity and suppressing protein synthesis.

Taxon
Brassica napusBrassica napust1
Treatment
compound agente6
Interactor
S. sclerotiorumSclerotinia sclerotiorume6pathogen
Outcome
growthe6
Qualifier
disrupting its membrane system, reducing the activity of cell wall-degrading enzymes, and suppressing protein synthesise6

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

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗
Sclerotinia sclerotiorum
Sclerotinia sclerotiorum · InteractorRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t1

“Brassica napus”

✓ located verbatim in the source · title, characters 161–175 · show in text ↑
e6

“this study suggests that the compound agent effectively inhibits the growth of S. sclerotiorum by disrupting its membrane system, reducing the activity of cell wall-degrading enzymes, and suppressing protein synthesis”

✓ located verbatim in the source · abstract, characters 1137–1354 · show in text ↑

selenium atom · Sclerotinia sclerotiorum · Brassica napus (oilseed rape)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive
See all 4 papers →

application · Sclerotinia sclerotiorum · Brassica napus (oilseed rape)Positive and negative results

16 papers: 9 positive, 7 negative or no effect

8 papers in the same direction as this paper · 7 in the opposite direction

  1. negative
  2. negative
  3. negative

12 papers more in this group

See all 16 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.