Abstract
Stem rot caused by Sclerotinia sclerotiorum poses a significant threat to global agriculture, leading to substantial economic losses. To explore innovative integrated pest management strategies and elucidate the underlying mechanisms, this study examined the impact of nano-silicon on enhancing resistance to Sclerotinia sclerotiorum in Brassica napus. Bacteriostatic assays revealed that nano-silicon effectively inhibited the mycelial growth of Sclerotinia sclerotiorum in a dose-dependent manner. Field trials corroborated the utility of nano-silicon as a fertilizer, substantially bolstering resistance in the Brassica napus cultivar Xiangyou 420. Specifically, the disease index was reduced by 39–52% across three distinct geographical locations when compared to untreated controls. This heightened resistance was attributed to nano-silicon’s role in promoting the accumulation of essential elements such as silicon (Si), potassium (K), and calcium (Ca), while concurrently reducing sodium (Na) absorption. Furthermore, nano-silicon was found to elevate the levels of soluble sugars and lignin, while reducing cellulose content in both leaves and stems. It also enhanced the activity levels of antioxidant enzymes. Transcriptomic analysis revealed 22,546 differentially expressed genes in Si-treated Brassica napus post-Sclerotinia inoculation, with the most pronounced transcriptional changes observed one day post-inoculation. Weighted gene co-expression network analysis identified a module comprising 45 hub genes that are implicated in signaling, transcriptional regulation, metabolism, and defense mechanisms. In summary, nano-silicon confers resistance to Brassica napus against Sclerotinia sclerotiorum by modulating biochemical defenses, enhancing antioxidative activities, and rapidly reprogramming key resistance-associated genes. These findings contribute to our mechanistic understanding of Si-mediated resistance against necrotrophic fungi and offer valuable insights for the development of stem-rot-resistant Brassica napus cultivars.
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Claims 11
Claim · model-written summary
Nano-silicon inhibited mycelial growth of Sclerotinia sclerotiorum in a dose-dependent manner.
- Taxon
- Brassica napus
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napust0 - Treatment
- nano-silicone1
- Interactor
- Sclerotinia sclerotiorum
Sclerotinia sclerotiorume1pathogen - Outcome
- mycelial growthe1
- Direction
- inhibitede1
- Qualifier
- dose-dependent mannere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
t0“Nano-Silicon Triggers Rapid Transcriptomic Reprogramming and Biochemical Defenses in Brassica napus Challenged with Sclerotinia sclerotiorum”
e1“nano-silicon effectively inhibited the mycelial growth of Sclerotinia sclerotiorum in a dose-dependent manner”
Claim · model-written summary
Nano-silicon reduced stem rot disease index by 39–52% across three geographical locations compared with untreated controls.
- Taxon
- Brassica napusBrassica napust0
- Treatment
- Nano-Silicont0
- Interactor
- Sclerotinia sclerotiorumSclerotinia sclerotiorumt0pathogen
- Outcome
- disease indexe2
- Direction
- reducede2
- Value
- 39–52%e2
- Comparator
- untreated controlse2
- Setting
- three distinct geographical locationse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Nano-Silicon Triggers Rapid Transcriptomic Reprogramming and Biochemical Defenses in Brassica napus Challenged with Sclerotinia sclerotiorum”
e2“the disease index was reduced by 39–52% across three distinct geographical locations when compared to untreated controls”
Claim · model-written summary
Nano-silicon applied as a fertilizer bolstered resistance of the Xiangyou 420 cultivar in field trials.
- Taxon
- Brassica napusBrassica napust0
- Material
- Xiangyou 420e3
- Treatment
- nano-silicon as a fertilizere3
- Outcome
- resistancee3
- Direction
- bolsteringe3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Nano-Silicon Triggers Rapid Transcriptomic Reprogramming and Biochemical Defenses in Brassica napus Challenged with Sclerotinia sclerotiorum”
e3“Field trials corroborated the utility of nano-silicon as a fertilizer, substantially bolstering resistance in the Brassica napus cultivar Xiangyou 420”
Claim · model-written summary
Nano-silicon promoted accumulation of silicon, potassium and calcium in Brassica napus.
- Taxon
- Brassica napusBrassica napust0
- Treatment
- nano-silicone4
- Outcome
- accumulation of essential elements such as silicon (Si), potassium (K), and calcium (Ca)e4
- Direction
- promotinge4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Nano-Silicon Triggers Rapid Transcriptomic Reprogramming and Biochemical Defenses in Brassica napus Challenged with Sclerotinia sclerotiorum”
e4“nano-silicon’s role in promoting the accumulation of essential elements such as silicon (Si), potassium (K), and calcium (Ca), while concurrently reducing sodium (Na) absorption”
Claim · model-written summary
Nano-silicon reduced sodium absorption in Brassica napus.
- Taxon
- Brassica napusBrassica napust0
- Treatment
- nano-silicone4
- Outcome
- sodium (Na) absorptione4
- Direction
- reducinge4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Nano-Silicon Triggers Rapid Transcriptomic Reprogramming and Biochemical Defenses in Brassica napus Challenged with Sclerotinia sclerotiorum”
e4“nano-silicon’s role in promoting the accumulation of essential elements such as silicon (Si), potassium (K), and calcium (Ca), while concurrently reducing sodium (Na) absorption”
Claim · model-written summary
Nano-silicon elevated soluble sugars and lignin in Brassica napus leaves and stems.
- Taxon
- Brassica napusBrassica napust0
- Organ / stage
- leaves and stemse5
- Treatment
- nano-silicone5
- Outcome
- levels of soluble sugars and lignine5
- Direction
- elevatee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Nano-Silicon Triggers Rapid Transcriptomic Reprogramming and Biochemical Defenses in Brassica napus Challenged with Sclerotinia sclerotiorum”
e5“nano-silicon was found to elevate the levels of soluble sugars and lignin, while reducing cellulose content in both leaves and stems”
Claim · model-written summary
Nano-silicon reduced cellulose content in Brassica napus leaves and stems.
- Taxon
- Brassica napusBrassica napust0
- Organ / stage
- leaves and stemse5
- Treatment
- nano-silicone5
- Outcome
- cellulose contente5
- Direction
- reducinge5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Nano-Silicon Triggers Rapid Transcriptomic Reprogramming and Biochemical Defenses in Brassica napus Challenged with Sclerotinia sclerotiorum”
e5“nano-silicon was found to elevate the levels of soluble sugars and lignin, while reducing cellulose content in both leaves and stems”
Claim · model-written summary
Nano-silicon enhanced the activity levels of antioxidant enzymes in Brassica napus.
- Taxon
- Brassica napusBrassica napust0
- Treatment
- Nano-Silicont0
- Outcome
- activity levels of antioxidant enzymese6
- Direction
- enhancede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Nano-Silicon Triggers Rapid Transcriptomic Reprogramming and Biochemical Defenses in Brassica napus Challenged with Sclerotinia sclerotiorum”
e6“It also enhanced the activity levels of antioxidant enzymes”
Claim · model-written summary
Si-treated Brassica napus had 22,546 differentially expressed genes after Sclerotinia inoculation.
- Taxon
- Brassica napusBrassica napuse7
- Treatment
- Si-treatede7
- Interactor
- Sclerotinia
Sclerotiniae7pathogen - Outcome
- differentially expressed genese7
- Value
- 22,546e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Transcriptomic analysis revealed 22,546 differentially expressed genes in Si-treated Brassica napus post-Sclerotinia inoculation”
Claim · model-written summary
The most pronounced transcriptional changes in Si-treated Brassica napus occurred one day post-inoculation.
- Taxon
- Brassica napusBrassica napust0
- Outcome
- transcriptional changese0
- Qualifier
- one day post-inoculatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Nano-Silicon Triggers Rapid Transcriptomic Reprogramming and Biochemical Defenses in Brassica napus Challenged with Sclerotinia sclerotiorum”
e0“with the most pronounced transcriptional changes observed one day post-inoculation”
Claim · model-written summary
Weighted gene co-expression network analysis identified a module of 45 hub genes in signaling, transcriptional regulation, metabolism and defense.
- Taxon
- Brassica napusBrassica napust0
- Outcome
- hub genese0
- Value
- 45e0
- Qualifier
- implicated in signaling, transcriptional regulation, metabolism, and defense mechanismse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Nano-Silicon Triggers Rapid Transcriptomic Reprogramming and Biochemical Defenses in Brassica napus Challenged with Sclerotinia sclerotiorum”
e0“Weighted gene co-expression network analysis identified a module comprising 45 hub genes that are implicated in signaling, transcriptional regulation, metabolism, and defense mechanisms”
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