Abstract
Lignin is a promising biostimulant for enhancing plant growth and stress tolerance. In this study, bamboo kraft lignin (BKL) and its oxygen-alkali-modified derivative (OBKL) were applied to maize seedlings to elucidate the structure-function relationship. The increased hydrophilic groups of OBKL improved its capacity to enhance water and nutrient uptake, resulting in a 50% increase in root elongation, 65% enhancement in photosynthesis, and a 106% rise in transpiration. Low-molecular-weight OBKL promoted chlorophyll synthesis and stress resilience, whereas high-molecular-weight lignin suppressed growth. Transcriptomics analysis revealed that OBKL upregulated 1333 genes, including key transcription factors such as AP2/ERF, WRKY, MYB, and NAC, which are involved in regulating cell proliferation, tropisms, carbon metabolism, and stress responses. Genomes and Gene Ontology analysis further identified plant hormone signal transduction regulated by lignin as a major pathway. These findings reveal that OBKL is an effective biostimulant for improving crop productivity and environmental adaptability.
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Claims 8
Claim · model-written summary
OBKL increased maize root elongation by 50%.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applied to maize seedlings”
e1“The increased hydrophilic groups of OBKL improved its capacity to enhance water and nutrient uptake, resulting in a 50% increase in root elongation, 65% enhancement in photosynthesis, and a 106% rise in transpiration”
Claim · model-written summary
OBKL enhanced maize photosynthesis by 65%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applied to maize seedlings”
e1“The increased hydrophilic groups of OBKL improved its capacity to enhance water and nutrient uptake, resulting in a 50% increase in root elongation, 65% enhancement in photosynthesis, and a 106% rise in transpiration”
Claim · model-written summary
OBKL raised maize transpiration by 106%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applied to maize seedlings”
e1“The increased hydrophilic groups of OBKL improved its capacity to enhance water and nutrient uptake, resulting in a 50% increase in root elongation, 65% enhancement in photosynthesis, and a 106% rise in transpiration”
Claim · model-written summary
Low-molecular-weight OBKL promoted chlorophyll synthesis and stress resilience compared with high-molecular-weight lignin.
- Treatment
- Low-molecular-weight OBKLe2
- Outcome
- chlorophyll synthesis and stress resiliencee2
- Direction
- promotede2
- Comparator
- high-molecular-weight lignine2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applied to maize seedlings”
e2“Low-molecular-weight OBKL promoted chlorophyll synthesis and stress resilience, whereas high-molecular-weight lignin suppressed growth”
Claim · model-written summary
High-molecular-weight lignin suppressed maize growth compared with low-molecular-weight OBKL.
- Treatment
- high-molecular-weight lignine2
- Outcome
- growthe2
- Direction
- suppressede2
- Comparator
- Low-molecular-weight OBKLe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applied to maize seedlings”
e2“Low-molecular-weight OBKL promoted chlorophyll synthesis and stress resilience, whereas high-molecular-weight lignin suppressed growth”
Claim · model-written summary
OBKL upregulated 1333 genes in maize, including transcription factors AP2/ERF, WRKY, MYB and NAC.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applied to maize seedlings”
e3“OBKL upregulated 1333 genes, including key transcription factors such as AP2/ERF, WRKY, MYB, and NAC”
Claim · model-written summary
Plant hormone signal transduction was identified as a major pathway regulated by lignin in maize.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applied to maize seedlings”
e4“Genomes and Gene Ontology analysis further identified plant hormone signal transduction regulated by lignin as a major pathway”
Claim · model-written summary
OBKL is an effective biostimulant for improving maize crop productivity and environmental adaptability.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applied to maize seedlings”
e5“OBKL is an effective biostimulant for improving crop productivity and environmental adaptability”
The same questions in other papers
lignin · growth · Zea mays (maize)Positive and negative results
5 in the opposite direction
- positive
- positive
- 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.