Abstract
Boron (B) deficiency stress is frequently observed in citrus orchards and causes considerable loss of productivity and fruit quality. Carrizo citrange (Cc) has been reported as a rootstock more tolerant to B deficiency than Trifoliate orange (To). The 'Newhall' navel orange (Ns) performed better when grafted onto Cc (Ns/Cc) than when grafted onto To (Ns/To) under long-term B deficiency. The present study confirmed that Ns/Cc had higher boron content, leaf fresh weight, lower leaf chlorosis and stronger photosynthesis ability than Ns/To. Moreover, B-deficiency significantly reduced the chlorophyll and carotenoid content in Ns/To. The content of total soluble sugar and lignin were dramatically increased and the expression levels of photosynthesis-related genes were substantially down-regulated in Ns/To by B-deficient treatment. B-deficiency also strongly induced expression levels of chlorophyll decomposition-related genes, glucose synthesis-related genes and lignin synthesis-related genes, and significantly inhibited the expression of carotenoid synthesis-related genes in Ns/To. Overall, these findings suggested that the influence of To on the scion of Ns was worse than that of Cc due to differently regulating these metabolic pathways under the long term of B-deficiency. The transcriptome analysis provided further information for understanding the mechanism of the different responses of scion-rootstock combinations to B-deficiency stress.
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Claims 9
Claim · model-written summary
Under long-term B deficiency, the Ns/Cc combination had higher boron content and leaf fresh weight than Ns/To.
- Taxon
- navel orange
Citrus sinensise0 - Material
- Ns/Cce1
- Treatment
- grafted onto Cce0
- Outcome
- boron content, leaf fresh weighte1
- Direction
- highere1
- Comparator
- grafted onto Toe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 'Newhall' navel orange (Ns) performed better when grafted onto Cc (Ns/Cc) than when grafted onto To (Ns/To) under long-term B deficiency”
e1“The present study confirmed that Ns/Cc had higher boron content, leaf fresh weight, lower leaf chlorosis and stronger photosynthesis ability than Ns/To”
Claim · model-written summary
Under long-term B deficiency, the Ns/Cc combination had lower leaf chlorosis than Ns/To.
- Taxon
- navel orangeCitrus sinensise0
- Material
- Ns/Cce1
- Treatment
- grafted onto Cce0
- Outcome
- leaf chlorosise1
- Direction
- lowere1
- Comparator
- grafted onto Toe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 'Newhall' navel orange (Ns) performed better when grafted onto Cc (Ns/Cc) than when grafted onto To (Ns/To) under long-term B deficiency”
e1“The present study confirmed that Ns/Cc had higher boron content, leaf fresh weight, lower leaf chlorosis and stronger photosynthesis ability than Ns/To”
Claim · model-written summary
Under long-term B deficiency, the Ns/Cc combination had stronger photosynthesis ability than Ns/To.
- Taxon
- navel orangeCitrus sinensise0
- Material
- Ns/Cce1
- Treatment
- grafted onto Cce0
- Outcome
- photosynthesis abilitye1
- Direction
- strongere1
- Comparator
- grafted onto Toe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 'Newhall' navel orange (Ns) performed better when grafted onto Cc (Ns/Cc) than when grafted onto To (Ns/To) under long-term B deficiency”
e1“The present study confirmed that Ns/Cc had higher boron content, leaf fresh weight, lower leaf chlorosis and stronger photosynthesis ability than Ns/To”
Claim · model-written summary
B deficiency significantly reduced chlorophyll and carotenoid content in Ns/To.
- Taxon
- navel orangeCitrus sinensise0
- Material
- Ns/Toe2
- Treatment
- B-deficiencye2
- Outcome
- chlorophyll and carotenoid contente2
- Direction
- reducede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 'Newhall' navel orange (Ns) performed better when grafted onto Cc (Ns/Cc) than when grafted onto To (Ns/To) under long-term B deficiency”
e2“B-deficiency significantly reduced the chlorophyll and carotenoid content in Ns/To”
Claim · model-written summary
B-deficient treatment dramatically increased total soluble sugar and lignin content in Ns/To.
- Taxon
- navel orangeCitrus sinensise0
- Material
- Ns/Toe3
- Treatment
- B-deficient treatmente3
- Outcome
- content of total soluble sugar and lignine3
- Direction
- dramatically increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 'Newhall' navel orange (Ns) performed better when grafted onto Cc (Ns/Cc) than when grafted onto To (Ns/To) under long-term B deficiency”
e3“The content of total soluble sugar and lignin were dramatically increased and the expression levels of photosynthesis-related genes were substantially down-regulated in Ns/To by B-deficient treatment”
Claim · model-written summary
B-deficient treatment substantially down-regulated expression of photosynthesis-related genes in Ns/To.
- Taxon
- navel orangeCitrus sinensise0
- Material
- Ns/Toe3
- Treatment
- B-deficient treatmente3
- Outcome
- expression levels of photosynthesis-related genese3
- Direction
- substantially down-regulatede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 'Newhall' navel orange (Ns) performed better when grafted onto Cc (Ns/Cc) than when grafted onto To (Ns/To) under long-term B deficiency”
e3“The content of total soluble sugar and lignin were dramatically increased and the expression levels of photosynthesis-related genes were substantially down-regulated in Ns/To by B-deficient treatment”
Claim · model-written summary
B deficiency strongly induced expression of chlorophyll decomposition-related, glucose synthesis-related and lignin synthesis-related genes in Ns/To.
- Taxon
- navel orangeCitrus sinensise0
- Material
- Ns/Toe4
- Treatment
- B-deficiencye4
- Outcome
- expression levels of chlorophyll decomposition-related genes, glucose synthesis-related genes and lignin synthesis-related genese4
- Direction
- strongly inducede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 'Newhall' navel orange (Ns) performed better when grafted onto Cc (Ns/Cc) than when grafted onto To (Ns/To) under long-term B deficiency”
e4“B-deficiency also strongly induced expression levels of chlorophyll decomposition-related genes, glucose synthesis-related genes and lignin synthesis-related genes, and significantly inhibited the expression of carotenoid synthesis-related genes in Ns/To”
Claim · model-written summary
B deficiency significantly inhibited expression of carotenoid synthesis-related genes in Ns/To.
- Taxon
- navel orangeCitrus sinensise0
- Material
- Ns/Toe4
- Treatment
- B-deficiencye4
- Outcome
- expression of carotenoid synthesis-related genese4
- Direction
- significantly inhibitede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 'Newhall' navel orange (Ns) performed better when grafted onto Cc (Ns/Cc) than when grafted onto To (Ns/To) under long-term B deficiency”
e4“B-deficiency also strongly induced expression levels of chlorophyll decomposition-related genes, glucose synthesis-related genes and lignin synthesis-related genes, and significantly inhibited the expression of carotenoid synthesis-related genes in Ns/To”
Claim · model-written summary
The rootstock To affected the scion of Ns more negatively than Cc, probably by differently regulating metabolic pathways under long-term B deficiency.
- Taxon
- navel orangeCitrus sinensise0
- Treatment
- long term of B-deficiencye5
- Outcome
- the influence of To on the scion of Nse5
- Qualifier
- differently regulating these metabolic pathwayse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 'Newhall' navel orange (Ns) performed better when grafted onto Cc (Ns/Cc) than when grafted onto To (Ns/To) under long-term B deficiency”
e5“the influence of To on the scion of Ns was worse than that of Cc due to differently regulating these metabolic pathways under the long term of B-deficiency”
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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.