Abstract
The enrichment of cadmium (Cd) is an important factor threatening crop growth and food safety. However, it is unclear whether exogenous selenium (Se) can simultaneously achieve Cd reduction and promote the growth of peppers. This study used Yuefeng 750 and Hongtianhu 101 as materials and investigated the interaction effects of different Se-Cd concentrations (Cd = 2 and 5 μM; Se = 0, 0.5, and 2 μM) on the uptake and transport of Cd and Se, resistance physiology, and growth and development of pepper seedlings in a hydroponic experiment. The organ Cd content was significantly increased in pepper seedlings, inhibiting their growth and aggravating their physiological stress under Cd application. However, the growth and photosynthetic capacity of peppers were promoted after Se application under Cd stress. The superoxide anion (O2−), hydrogen peroxide (H2O2), malondialdehyde (MDA), and abscisic acid (ABA) contents and indole-3-acetic acid oxidase (IAAO) activity in the leaves showed a significantly progressive decline, while the proline (Pro), ascorbic acid (ASA), and trans zeatin riboside (ZR) contents showed a significant rising trend. Thus, the growth, development, and dry matter accumulation of peppers were enhanced by reducing Cd stress. Meanwhile, the application of exogenous Se significantly improved the accumulation of Se in seedlings. In addition, compared to Hongtianhu 101, the Yuefeng 750 cultivars had a greater Cd and Se enrichment capacity. The cultivation of Cd-excluding cultivars combined with exogenous Se addition can be used as a recommended solution to reduce Cd toxicity and achieve Cd reduction and Se enrichment in peppers under Cd pollution.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 14
Claim · model-written summary
Cadmium application significantly increased cadmium content in pepper seedling organs.
Not reportedComparator
Verbatim
e0“The organ Cd content was significantly increased in pepper seedlings, inhibiting their growth and aggravating their physiological stress under Cd application”
Claim · model-written summary
Cadmium application inhibited pepper seedling growth.
Not reportedComparator
Verbatim
e0“inhibiting their growth and aggravating their physiological stress under Cd application”
e1“organ Cd content was significantly increased in pepper seedlings”
Claim · model-written summary
Cadmium application aggravated physiological stress in pepper seedlings.
Not reportedComparator
Verbatim
e0“aggravating their physiological stress under Cd application”
e1“organ Cd content was significantly increased in pepper seedlings”
Claim · model-written summary
Selenium promoted pepper growth under cadmium stress.
CapsicumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the growth and photosynthetic capacity of peppers were promoted after Se application under Cd stress”
Claim · model-written summary
Selenium promoted pepper photosynthetic capacity under cadmium stress.
- Treatment
- Se applicatione0
- Outcome
- photosynthetic capacitye0
- Direction
- promotede0
- Qualifier
- under Cd stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the growth and photosynthetic capacity of peppers were promoted after Se application under Cd stress”
Claim · model-written summary
Pepper leaf superoxide anion, hydrogen peroxide and malondialdehyde contents declined progressively under selenium treatment.
- Organ / stage
- leavese0
- Treatment
- Se applicatione1
- Outcome
- superoxide anion (O2−), hydrogen peroxide (H2O2), malondialdehyde (MDA)e0
- Direction
- progressive declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The superoxide anion (O2−), hydrogen peroxide (H2O2), malondialdehyde (MDA), and abscisic acid (ABA) contents and indole-3-acetic acid oxidase (IAAO) activity in the leaves showed a significantly progressive decline”
e1“Se application under Cd stress”
e2“photosynthetic capacity of peppers were promoted”
Claim · model-written summary
Pepper leaf abscisic acid content declined progressively under selenium treatment.
- Organ / stage
- leavese0
- Treatment
- Se applicatione1
- Outcome
- abscisic acid (ABA) contentse0
- Direction
- progressive declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“abscisic acid (ABA) contents and indole-3-acetic acid oxidase (IAAO) activity in the leaves showed a significantly progressive decline”
e1“Se application under Cd stress”
e2“photosynthetic capacity of peppers were promoted”
Claim · model-written summary
Pepper leaf indole-3-acetic acid oxidase activity declined progressively under selenium treatment.
- Organ / stage
- leavese0
- Treatment
- Se applicatione1
- Outcome
- indole-3-acetic acid oxidase (IAAO) activitye0
- Direction
- progressive declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“indole-3-acetic acid oxidase (IAAO) activity in the leaves showed a significantly progressive decline”
e1“Se application under Cd stress”
e2“photosynthetic capacity of peppers were promoted”
Claim · model-written summary
Pepper leaf proline, ascorbic acid and trans zeatin riboside contents rose significantly under selenium treatment.
- Treatment
- Se applicatione1
- Outcome
- proline (Pro), ascorbic acid (ASA), and trans zeatin riboside (ZR) contentse0
- Direction
- rising trende0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the proline (Pro), ascorbic acid (ASA), and trans zeatin riboside (ZR) contents showed a significant rising trend”
e1“Se application under Cd stress”
e2“photosynthetic capacity of peppers were promoted”
Claim · model-written summary
Selenium mitigation of cadmium stress enhanced pepper growth, development and dry matter accumulation.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the growth, development, and dry matter accumulation of peppers were enhanced by reducing Cd stress”
e1“application of exogenous Se significantly improved”
Claim · model-written summary
Exogenous selenium significantly increased selenium accumulation in pepper seedlings.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of exogenous Se significantly improved the accumulation of Se in seedlings”
e1“photosynthetic capacity of peppers were promoted”
Claim · model-written summary
Yuefeng 750 had greater cadmium enrichment capacity than Hongtianhu 101.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compared to Hongtianhu 101, the Yuefeng 750 cultivars had a greater Cd and Se enrichment capacity”
e1“photosynthetic capacity of peppers were promoted”
Claim · model-written summary
Yuefeng 750 had greater selenium enrichment capacity than Hongtianhu 101.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compared to Hongtianhu 101, the Yuefeng 750 cultivars had a greater Cd and Se enrichment capacity”
e1“photosynthetic capacity of peppers were promoted”
Claim · model-written summary
The authors recommended combining cadmium-excluding pepper cultivars with exogenous selenium to reduce cadmium toxicity and enrich selenium under cadmium pollution.
- Treatment
- exogenous Se additione0
- Outcome
- reduce Cd toxicity and achieve Cd reduction and Se enrichmente0
- Qualifier
- under Cd pollutione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cultivation of Cd-excluding cultivars combined with exogenous Se addition can be used as a recommended solution to reduce Cd toxicity and achieve Cd reduction and Se enrichment in peppers under Cd pollution”
The same questions in other papers
selenium atom · yield · Capsicum (peppers)Results agree
1 paper in the same direction as this paper
- positive
selenium atom · quality: phytochemicals · Capsicum (peppers)Results agree
1 paper in the same direction as this paper
- positive
selenium atom · physiology: oxidative · Capsicum (peppers)Results agree
1 paper in the same direction as this paper
- positive
selenium atom · physiology: photosynthesis · Capsicum (peppers)Results agree
1 paper in the same direction as this paper
- positive
selenium atom · molecular: metabolites · Capsicum (peppers)Results agree
1 paper in the same direction as this paper
- positive
selenium atom · growth · Capsicum (peppers)Results agree
2 papers in the same direction as this paper
- positive
- 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.