Abstract
Enhanced UV -B radiation significantly decreased plant weight, leaf area, and specific leaf area of pomelo seedlings, increased leaf thickness and mesophyll density. The contents of chloro- phyll, soluble proteins and the activity of NR were reduced, soluble sugar content was increased. Dif- ferent responses to UV -B were existed among different pomelo cultivars. Under enhanced UV - Btreatment, leaf Pn was declined, Rd increased at first, then returned original standard. Fv/Fm, ■qpⅡ，qp were decreased at different level, qN and KD were raised, these demonstrated that enhanced UV -B radiation led to PS Ⅱ inactivaton, the primary photochemical efficiency, the number of PS Ⅱ opening centre, and noncyclic electron transport of PSⅡ were reduced. Partial excitation energy might dissipate the useful nonphotochemical fluorecence quenching. Enhanced UV -B radiation led to a re- markble increase of MDA. The activities of SOD, APX were promoted at initial stage of treatment, then dropped. The results suggested that enhanced UV-B radiation induced membrane lipid peroxida- tion, attacked photosytnem center and led to PS Ⅱ inactivation, thus reduced plant photosynthesis and metabolism strength, finally led to the inhibition on the growth of pomelo seedlings.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 12
Claim · model-written summary
Enhanced UV-B radiation significantly decreased plant weight, leaf area and specific leaf area of pomelo seedlings.
- Taxon
- pomelo seedlings
Citrus maximat0 - Treatment
- Enhanced UV -B radiatione0
- Outcome
- plant weight, leaf area, and specific leaf areae0
- Direction
- significantly decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pomelo Seedlings”
e0“Enhanced UV -B radiation significantly decreased plant weight, leaf area, and specific leaf area of pomelo seedlings, increased leaf thickness and mesophyll density”
Claim · model-written summary
Enhanced UV-B radiation increased leaf thickness and mesophyll density of pomelo seedlings.
- Taxon
- pomelo seedlingsCitrus maximat0
- Treatment
- Enhanced UV -B radiatione0
- Outcome
- leaf thickness and mesophyll densitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pomelo Seedlings”
e0“Enhanced UV -B radiation significantly decreased plant weight, leaf area, and specific leaf area of pomelo seedlings, increased leaf thickness and mesophyll density”
Claim · model-written summary
Enhanced UV-B reduced chlorophyll contents, soluble protein contents and nitrate reductase activity of pomelo seedlings.
- Taxon
- pomelo seedlingsCitrus maximat0
- Treatment
- Enhanced UV -B radiatione0
- Outcome
- chloro- phyll, soluble proteins and the activity of NRe1
- Direction
- were reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pomelo Seedlings”
e0“Enhanced UV -B radiation significantly decreased plant weight, leaf area, and specific leaf area of pomelo seedlings, increased leaf thickness and mesophyll density”
e1“The contents of chloro- phyll, soluble proteins and the activity of NR were reduced, soluble sugar content was increased”
Claim · model-written summary
Enhanced UV-B increased soluble sugar content of pomelo seedlings.
- Taxon
- pomelo seedlingsCitrus maximat0
- Treatment
- Enhanced UV -B radiatione0
- Outcome
- soluble sugar contente1
- Direction
- was increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pomelo Seedlings”
e0“Enhanced UV -B radiation significantly decreased plant weight, leaf area, and specific leaf area of pomelo seedlings, increased leaf thickness and mesophyll density”
e1“The contents of chloro- phyll, soluble proteins and the activity of NR were reduced, soluble sugar content was increased”
Claim · model-written summary
Pomelo cultivars differed in their responses to enhanced UV-B.
- Taxon
- pomeloCitrus maximae2
- Outcome
- responses to UV -Be2
- Qualifier
- among different pomelo cultivarse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Dif- ferent responses to UV -B were existed among different pomelo cultivars”
Claim · model-written summary
Enhanced UV-B declined leaf Pn of pomelo seedlings.
- Taxon
- pomelo seedlingsCitrus maximat0
- Treatment
- enhanced UV - Btreatmente3
- Outcome
- leaf Pne3
- Direction
- was declinede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pomelo Seedlings”
e3“Under enhanced UV - Btreatment, leaf Pn was declined, Rd increased at first, then returned original standard”
Claim · model-written summary
Enhanced UV-B first increased Rd of pomelo seedlings, which then returned to the original standard.
- Taxon
- pomelo seedlingsCitrus maximat0
- Treatment
- enhanced UV - Btreatmente3
- Outcome
- Rde3
- Direction
- increased at firste3
- Qualifier
- then returned original standarde3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pomelo Seedlings”
e3“Under enhanced UV - Btreatment, leaf Pn was declined, Rd increased at first, then returned original standard”
Claim · model-written summary
Enhanced UV-B decreased Fv/Fm of pomelo seedlings.
- Taxon
- pomelo seedlingsCitrus maximat0
- Treatment
- enhanced UV -B radiatione4
- Outcome
- Fv/Fme4
- Direction
- were decreasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pomelo Seedlings”
e4“Fv/Fm, ■qpⅡ，qp were decreased at different level, qN and KD were raised, these demonstrated that enhanced UV -B radiation led to PS Ⅱ inactivaton, the primary photochemical efficiency, the number of PS Ⅱ opening centre, and noncyclic electron transport of PSⅡ were reduced”
Claim · model-written summary
Enhanced UV-B raised qN and KD of pomelo seedlings.
- Taxon
- pomelo seedlingsCitrus maximat0
- Treatment
- enhanced UV -B radiatione4
- Outcome
- qN and KDe4
- Direction
- were raisede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pomelo Seedlings”
e4“Fv/Fm, ■qpⅡ，qp were decreased at different level, qN and KD were raised, these demonstrated that enhanced UV -B radiation led to PS Ⅱ inactivaton, the primary photochemical efficiency, the number of PS Ⅱ opening centre, and noncyclic electron transport of PSⅡ were reduced”
Claim · model-written summary
Enhanced UV-B led to PS II inactivation in pomelo seedlings.
- Taxon
- pomelo seedlingsCitrus maximat0
- Treatment
- enhanced UV -B radiatione4
- Outcome
- PS Ⅱ inactivatone4
- Direction
- led toe4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pomelo Seedlings”
e4“Fv/Fm, ■qpⅡ，qp were decreased at different level, qN and KD were raised, these demonstrated that enhanced UV -B radiation led to PS Ⅱ inactivaton, the primary photochemical efficiency, the number of PS Ⅱ opening centre, and noncyclic electron transport of PSⅡ were reduced”
Claim · model-written summary
Enhanced UV-B reduced the primary photochemical efficiency, the number of PS II opening centres and noncyclic electron transport of PSII in pomelo seedlings.
- Taxon
- pomelo seedlingsCitrus maximat0
- Treatment
- enhanced UV -B radiatione4
- Outcome
- the primary photochemical efficiency, the number of PS Ⅱ opening centre, and noncyclic electron transport of PSⅡe4
- Direction
- were reducede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pomelo Seedlings”
e4“Fv/Fm, ■qpⅡ，qp were decreased at different level, qN and KD were raised, these demonstrated that enhanced UV -B radiation led to PS Ⅱ inactivaton, the primary photochemical efficiency, the number of PS Ⅱ opening centre, and noncyclic electron transport of PSⅡ were reduced”
Claim · model-written summary
Enhanced UV-B markedly increased MDA content of pomelo seedlings.
- Taxon
- pomelo seedlingsCitrus maximat0
- Treatment
- Enhanced UV -B radiatione5
- Outcome
- MDAe5
- Direction
- increasee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pomelo Seedlings”
e5“Enhanced UV -B radiation led to a re- markble increase of MDA”
The same questions in other papers
radiation · physiology: photosynthesis · Citrus maxima (pummelo)Results agree
1 paper in the same direction as this paper
- no effect
uv · physiology: photosynthesis · Citrus maxima (pummelo)Results agree
2 papers in the same direction as this paper
- negative
- no effect
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.