Abstract
INTRODUCTION: Rare earth elements (REEs) have been demonstrated to exert broad growth-promoting effects on crop production, showing great potential for application in agriculture. However, the effects of REEs on peanut seed germination and the underlying mechanisms remain unreported. RATIONALE: In this study, four REEs-lanthanum, cerium, neodymium, and praseodymium were selected, along with three peanut varieties (Beihua 12, Silihong, and Yunnan Qicai), to investigate the differential effects of REEs on peanut seed germination. Furthermore, based on the combination of praseodymium and Beihua 12, which significantly promoted hypocotyl elongation, transcriptome sequencing was employed to analyze the potential mechanisms by which REEs enhance hypocotyl growth. RESULTS:The results showed that different REEs had distinct effects on seed germination, and the sensitivity of peanut varieties to the same REE also varied. Under treatment with 50 µmol•L⁻¹ praseodymium chloride, the hypocotyl of Beihua 12 seeds was significantly elongated, accompanied by significant enrichment of pathways related to flavonoid biosynthesis and transporter activity, as well as a marked increase in flavonoid content. Quantitative real-time PCR (qRT-PCR) confirmed the upregulation of the relevant differentially expressed genes. Furthermore, foliar application of praseodymium chloride solution to Beihua 12 seedlings revealed that low-concentration praseodymium increased leaf chlorophyll content, soluble sugar content, and photosynthetic rate. CONCLUSION:This study provides a reference for the rational and scientific application of rare earth fertilizers in peanut production in the future.
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Claims 7
Claim · model-written summary
Different rare earth elements had distinct effects on peanut seed germination.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- different REEse2
- Outcome
- seed germinatione2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“germination and growth of peanut Beihua12”
e2“The results showed that different REEs had distinct effects on seed germination, and the sensitivity of peanut varieties to the same REE also varied”
Claim · model-written summary
Peanut varieties differed in their sensitivity to the same rare earth element.
- Taxon
- peanutArachis hypogaeat0
- Outcome
- sensitivity of peanut varietiese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“germination and growth of peanut Beihua12”
e2“The results showed that different REEs had distinct effects on seed germination, and the sensitivity of peanut varieties to the same REE also varied”
Claim · model-written summary
Praseodymium chloride at 50 µmol•L⁻¹ significantly elongated the hypocotyl of Beihua 12 seeds.
- Taxon
- peanutArachis hypogaeat0
- Material
- Beihua 12e3
- Organ / stage
- hypocotyle3
- Treatment
- 50 µmol•L⁻¹ praseodymium chloridee3
- Outcome
- hypocotyle3
- Direction
- elongatede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“germination and growth of peanut Beihua12”
e3“Under treatment with 50 µmol•L⁻¹ praseodymium chloride, the hypocotyl of Beihua 12 seeds was significantly elongated, accompanied by significant enrichment of pathways related to flavonoid biosynthesis and transporter activity, as well as a marked increase in flavonoid content”
Claim · model-written summary
Praseodymium chloride at 50 µmol•L⁻¹ caused significant enrichment of pathways related to flavonoid biosynthesis and transporter activity in Beihua 12 seeds.
- Taxon
- peanutArachis hypogaeat0
- Material
- Beihua 12e3
- Treatment
- 50 µmol•L⁻¹ praseodymium chloridee3
- Outcome
- pathways related to flavonoid biosynthesis and transporter activitye3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“germination and growth of peanut Beihua12”
e3“Under treatment with 50 µmol•L⁻¹ praseodymium chloride, the hypocotyl of Beihua 12 seeds was significantly elongated, accompanied by significant enrichment of pathways related to flavonoid biosynthesis and transporter activity, as well as a marked increase in flavonoid content”
Claim · model-written summary
Praseodymium chloride at 50 µmol•L⁻¹ markedly increased flavonoid content in Beihua 12 seeds.
- Taxon
- peanutArachis hypogaeat0
- Material
- Beihua 12e3
- Treatment
- 50 µmol•L⁻¹ praseodymium chloridee3
- Outcome
- flavonoid contente3
- Direction
- increasee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“germination and growth of peanut Beihua12”
e3“Under treatment with 50 µmol•L⁻¹ praseodymium chloride, the hypocotyl of Beihua 12 seeds was significantly elongated, accompanied by significant enrichment of pathways related to flavonoid biosynthesis and transporter activity, as well as a marked increase in flavonoid content”
Claim · model-written summary
qRT-PCR confirmed upregulation of the relevant differentially expressed genes in peanut.
- Taxon
- peanutArachis hypogaeat0
- Gene
- differentially expressed genese4
- Outcome
- upregulation of the relevant differentially expressed genese4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“germination and growth of peanut Beihua12”
e4“Quantitative real-time PCR (qRT-PCR) confirmed the upregulation of the relevant differentially expressed genes”
Claim · model-written summary
Foliar application of praseodymium chloride solution to Beihua 12 seedlings at low concentration increased leaf chlorophyll content, soluble sugar content and photosynthetic rate.
- Taxon
- peanutArachis hypogaeat0
- Material
- Beihua 12e5
- Organ / stage
- leafe5
- Treatment
- foliar application of praseodymium chloride solutione5
- Outcome
- leaf chlorophyll content, soluble sugar content, and photosynthetic ratee5
- Direction
- increasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“germination and growth of peanut Beihua12”
e5“foliar application of praseodymium chloride solution to Beihua 12 seedlings revealed that low-concentration praseodymium increased leaf chlorophyll content, soluble sugar content, and photosynthetic rate”
The same questions in other papers
application · physiology: photosynthesis · Arachis hypogaea (peanut)Positive and negative results
18 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
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See all 20 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.