Abstract
The deleterious effects of ultraviolet B (UV-B) radiation on photosynthesis and photosynthetic proteins of tropical and temperate plants have been studied. Like tropical plants (black gram and green gram), the temperate plants (carrot and radish) also successfully grown in the tropical region. They were exposed to enhanced UV-B radiation under field condition. Comparative studies show that under enhanced UV-B radiation photosynthetic activity was increased in black gram. In green gram and radish the UV-B radiation slightly enhanced the photosynthetic activity, but it inhibited the photosynthetic activity in carrot. The comparative results showed changes in contents of thylakoid 55, The PSII protein profile results showed a strong correlation between the presence of a membrane polypeptide and photosynthetic activity. In black gram and green gram the UV-B radiation did not produce any significant difference in the PSII polypeptides. As in the case of radish the UV-B radiation increased the accumulation of 33-28 kDa protein and affected expression of the 63 kDa protein. In the case of carrot, severe degradation of 32 kDa and 33 kDa, corresponding to D1 and D2 core proteins of PSII, was observed. It could be concluded that the ability of plants to tolerate increased levels of UV-B radiation, relative to photosynthetic capacity, depends on acclimation processes of the plant in the growing region.
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Claims 11
Claim · model-written summary
Enhanced UV-B radiation increased photosynthetic activity in black gram in the field.
- Taxon
- black gram
Vigna mungoe2 - Treatment
- enhanced UV-B radiatione1
- Outcome
- photosynthetic activitye2
- Direction
- increasede2
- Setting
- field conditione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Comparative studies show that under enhanced UV-B radiation photosynthetic activity was increased in black gram”
e1“They were exposed to enhanced UV-B radiation under field condition”
Claim · model-written summary
UV-B radiation slightly enhanced photosynthetic activity in green gram in the field.
- Taxon
- green gram
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Vigna radiata var. radiatae3 - Treatment
- UV-B radiatione3
- Outcome
- photosynthetic activitye3
- Direction
- slightly enhancede3
- Setting
- field conditione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e3“In green gram and radish the UV-B radiation slightly enhanced the photosynthetic activity, but it inhibited the photosynthetic activity in carrot”
e1“They were exposed to enhanced UV-B radiation under field condition”
Claim · model-written summary
UV-B radiation slightly enhanced photosynthetic activity in radish in the field.
- Taxon
- radish
Raphanus sativuse3 - Treatment
- UV-B radiatione3
- Outcome
- photosynthetic activitye3
- Direction
- slightly enhancede3
- Setting
- field conditione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“In green gram and radish the UV-B radiation slightly enhanced the photosynthetic activity, but it inhibited the photosynthetic activity in carrot”
e1“They were exposed to enhanced UV-B radiation under field condition”
Claim · model-written summary
UV-B radiation inhibited photosynthetic activity in carrot in the field.
- Taxon
- carrot
Daucus carotae3 - Treatment
- UV-B radiatione3
- Outcome
- photosynthetic activitye3
- Direction
- inhibitede3
- Setting
- field conditione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“In green gram and radish the UV-B radiation slightly enhanced the photosynthetic activity, but it inhibited the photosynthetic activity in carrot”
e1“They were exposed to enhanced UV-B radiation under field condition”
Claim · model-written summary
Photosynthetic activity showed a strong correlation with the presence of a membrane polypeptide in the PSII protein profile across the plants studied.
Not reportedDirection
Verbatim
e4“The PSII protein profile results showed a strong correlation between the presence of a membrane polypeptide and photosynthetic activity”
e5“The deleterious effects of ultraviolet B (UV-B) radiation on photosynthesis and photosynthetic proteins of tropical and temperate plants have been studied”
Claim · model-written summary
UV-B radiation did not produce a significant difference in PSII polypeptides in black gram.
- Taxon
- black gramVigna mungoe6
- Treatment
- UV-B radiatione6
- Outcome
- PSII polypeptidese6
- Direction
- did not produce any significant differencee6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“In black gram and green gram the UV-B radiation did not produce any significant difference in the PSII polypeptides”
Claim · model-written summary
UV-B radiation did not produce a significant difference in PSII polypeptides in green gram.
- Taxon
- green gramVigna radiata var. radiatae6
- Treatment
- UV-B radiatione6
- Outcome
- PSII polypeptidese6
- Direction
- did not produce any significant differencee6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“In black gram and green gram the UV-B radiation did not produce any significant difference in the PSII polypeptides”
Claim · model-written summary
UV-B radiation increased the accumulation of a 33-28 kDa protein in radish.
- Taxon
- radishRaphanus sativuse7
- Treatment
- UV-B radiatione7
- Gene
- 33-28 kDa proteine7
- Outcome
- accumulatione7
- Direction
- increasede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“As in the case of radish the UV-B radiation increased the accumulation of 33-28 kDa protein and affected expression of the 63 kDa protein”
Claim · model-written summary
UV-B radiation affected expression of a 63 kDa protein in radish.
- Taxon
- radishRaphanus sativuse7
- Treatment
- UV-B radiatione7
- Gene
- 63 kDa proteine7
- Outcome
- expressione7
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“As in the case of radish the UV-B radiation increased the accumulation of 33-28 kDa protein and affected expression of the 63 kDa protein”
Claim · model-written summary
Enhanced UV-B radiation caused severe degradation of 32 kDa and 33 kDa proteins, corresponding to D1 and D2 core PSII proteins, in carrot in the field.
- Taxon
- carrotDaucus carotae7
- Treatment
- enhanced UV-B radiatione1
- Gene
- D1 and D2 core proteinse7
- Outcome
- degradation of 32 kDa and 33 kDae7
- Direction
- degradatione7
- Setting
- field conditione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“In the case of carrot, severe degradation of 32 kDa and 33 kDa, corresponding to D1 and D2 core proteins of PSII, was observed”
e1“They were exposed to enhanced UV-B radiation under field condition”
Claim · model-written summary
The ability of plants to tolerate increased UV-B radiation depends on acclimation processes in the growing region.
- Taxon
- plantsViridiplantaee6
- Outcome
- ability of plants to tolerate increased levels of UV-B radiatione6
- Qualifier
- acclimation processese6
Verbatim
e6“It could be concluded that the ability of plants to tolerate increased levels of UV-B radiation, relative to photosynthetic capacity, depends on acclimation processes of the plant in the growing region”
The same questions in other papers
uv · physiology: photosynthesis · Vigna mungo (black gram)Positive and negative results
1 in the opposite direction
- negative
radiation · physiology: photosynthesis · Raphanus sativus (radish)Positive and negative results
1 in the opposite direction
- negative
radiation · physiology: photosynthesis · Daucus carota (carrot)Positive and negative results
1 in the opposite direction
- positive
radiation · physiology: photosynthesis · Vigna radiata (mung bean)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
uv · physiology: photosynthesis · Raphanus sativus (radish)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
uv · physiology: photosynthesis · Vigna radiata (mung bean)Positive and negative results
1 paper in the same direction as this paper · 5 in the opposite direction
- negative
- negative
- negative
3 papers more in this group
See all 7 papers →uv · physiology: photosynthesis · Daucus carota (carrot)Results agree
1 paper in the same direction as this paper
- no effect
radiation · physiology: photosynthesis · Vigna mungo (black gram)Results agree
1 paper in the same direction as this paper
- positive
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.