Claim · model-written summary
Photosynthetic pigment content under T-1 increased during the first 2 days, then recovered to the CK level.
- Taxon
- cucumber
Cucumis sativuse0 - Material
- Xintaimicie0
- Organ / stage
- seedlingse0
- Treatment
- T-1e1
- Outcome
- Photosynthetic pigment contente1
- Direction
- increasede1
- Qualifier
- during the first 2 de1
- Comparator
- CKe1
- Setting
- hydroponic culturee0
Not reportedGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effects of three nitrate levels - 14(CK), 56(T-1), and 140 mmol L-1 (T-2) - on growth and photosynthetic capacity of cucumber (Cucumis sativus L. cv. Xintaimici) seedlings grown in hydroponic culture were investigated”
e1“Photosynthetic pigment content of T-1 and T-2 increased during the first 2 d, and gradually recovered to the level of CK thereafter”
Title
Changes in growth and photosynthetic capacity of cucumber seedlings in response to nitrate stress
Xiaoyu Yang; Xiufeng Wang; Min Wei; et al. Brazilian Journal of Plant Physiology 2009. doi:10.1590/s1677-04202009000400007
Other claims from this paper (19)
- Intervention effect At 12 days, 56 mmol L-1 nitrate stimulated plant height, stem diameter and leaf area of cucumber seedlings relative to CK.
- Intervention effect At 12 days, 56 mmol L-1 nitrate stimulated leaf number of cucumber seedlings relative to CK.
- Intervention effect At 12 days, 140 mmol L-1 nitrate significantly inhibited plant height, stem diameter and leaf area of cucumber seedlings relative to CK.
- Intervention effect At 12 days, 140 mmol L-1 nitrate significantly inhibited leaf number of cucumber seedlings relative to CK.
- Intervention effect Under T-1, photosynthetic rate was briefly stimulated and then recovered to the CK level.
- Intervention effect Under T-2, photosynthetic rate significantly decreased relative to CK over the treatment course.
- Intervention effect Photosynthetic pigment content under T-2 increased during the first 2 days, then recovered to the CK level.
- Intervention effect Under T-1, chlorophyll a/b and carotenoids/chlorophyll did not differ significantly from CK.
- Intervention effect Under T-1, PSII efficiency and photochemical quenching did not differ significantly from CK.
- Intervention effect Under T-1, non-photochemical quenching was slightly higher than CK after 2 days.
- Intervention effect Under T-2, chlorophyll a/b and carotenoids/chlorophyll did not differ significantly from CK during the first 4 days.
- Intervention effect Under T-2, chlorophyll a/b increased gradually after 4 days.
- Intervention effect Under T-2, carotenoids/chlorophyll decreased after 4 days.
- Intervention effect Under T-2, PSII efficiency and photochemical quenching showed little difference from CK during the first 2 days.
- Intervention effect Under T-2, PSII efficiency and photochemical quenching decreased to a great extent after 2 days.
- Intervention effect Under T-2, non-photochemical quenching increased significantly over the treatment course.
- Intervention effect Under T-1, Hill reaction activity decreased slightly relative to CK.
- Intervention effect Under T-2, Hill reaction activity decreased significantly relative to CK.
- Mechanism High-level nitrate stress may reduce photosynthesis through effects on stomatal conductance and on the photosynthetic apparatus.