Paper · 2021 · PLoS ONE

High efficient de novo root-to-shoot organogenesis in Citrus jambhiri Lush.: Gene expression, genetic stability and virus indexing

Tongbram Roshni Devi; Madhumita Dasgupta; Manas Ranjan Sahoo; et al.

9
claims
18
verbatim quotes
9
citations
6
research areas
✓
Open access · cc-by

Abstract

A protocol for high-frequency direct organogenesis from root explants of Kachai lemon (Citrus jambhiri Lush.) was developed. Full-length roots (~3 cm) were isolated from the in vitro grown seedlings and cultured on Murashige and Skoog basal medium supplemented with Nitsch vitamin (MSN) with different concentrations of cytokinin [6-benzylaminopurine, (BAP)] and gibberellic acid (GA3). The frequency of multiple shoot proliferation was very high, with an average of 34.3 shoots per root explant when inoculated on the MSN medium supplemented with BAP (1.0 mg L-1) and GA3 (1.0 mg L-1). Optimal rooting was induced in the plantlets under half strength MSN medium supplemented with indole-3-acetic acid (IAA, 0.5-1.0 mg L-1). IAA induced better root structure than 1-naphthaleneacetic acid (NAA), which was evident from the scanning electron microscopy (SEM). The expressions of growth regulating factor genes (GRF1 and GRF5) and GA3 signaling genes (GA2OX1 and KO1) were elevated in the regenerants obtained from MSN+BAP (1.0 mg L-1)+GA3 (1.0 mg L-1). The expressions of auxin regulating genes were high in roots obtained in ½ MSN+IAA 1.0 mg L-1. Furthermore, indexing of the regenerants confirmed that there was no amplicons detected for Huanglongbing bacterium and Citrus tristeza virus. Random amplified polymorphic DNA (RAPD) and inter simple sequence repeat (ISSR) markers detected no polymorphic bands amongst the regenerated plants. This is the first report that describes direct organogenesis from the root explant of Citrus jambhiri Lush. The high-frequency direct regeneration protocol in the present study provides an enormous significance in Citrus organogenesis, its commercial cultivation and genetic conservation.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

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Claims 9

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

MSN medium with BAP and GA3 produced an average of 34.3 shoots per root explant.

Taxon
Citrus jambhiri Lush.Citrus jambhirit0
Treatment
MSN medium supplemented with BAP (1.0 mg L-1) and GA3 (1.0 mg L-1)e0
Outcome
multiple shoot proliferatione0
Direction
very highe0
Value
34.3 shoots per root explante0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus jambhiri
Citrus jambhiri · TaxonTon Rulkens from Mozambique · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The frequency of multiple shoot proliferation was very high, with an average of 34.3 shoots per root explant when inoculated on the MSN medium supplemented with BAP (1.0 mg L-1) and GA3 (1.0 mg L-1).”

✓ located verbatim in the source · abstract, characters 387–586 · show in text ↑
t0

“Citrus jambhiri Lush.”

✓ located verbatim in the source · title, characters 54–75 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Half-strength MSN with IAA induced optimal rooting.

Taxon
Citrus jambhiri Lush.Citrus jambhirit0
Treatment
half strength MSN medium supplemented with indole-3-acetic acid (IAA, 0.5-1.0 mg L-1)e0
Outcome
rootinge0
Direction
Optimale0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus jambhiri
Citrus jambhiri · TaxonTon Rulkens from Mozambique · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Optimal rooting was induced in the plantlets under half strength MSN medium supplemented with indole-3-acetic acid (IAA, 0.5-1.0 mg L-1).”

✓ located verbatim in the source · abstract, characters 587–724 · show in text ↑
t0

“Citrus jambhiri Lush.”

✓ located verbatim in the source · title, characters 54–75 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

IAA induced better root structure than NAA.

Taxon
Citrus jambhiri Lush.Citrus jambhirit0
Treatment
IAAe0
Outcome
root structuree0
Direction
bettere0
Comparator
1-naphthaleneacetic acid (NAA)e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus jambhiri
Citrus jambhiri · TaxonTon Rulkens from Mozambique · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“IAA induced better root structure than 1-naphthaleneacetic acid (NAA), which was evident from the scanning electron microscopy (SEM).”

✓ located verbatim in the source · abstract, characters 725–858 · show in text ↑
t0

“Citrus jambhiri Lush.”

✓ located verbatim in the source · title, characters 54–75 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Regenerants from MSN+BAP+GA3 had elevated GRF1 and GRF5 expression.

Taxon
Citrus jambhiri Lush.Citrus jambhirit0
Treatment
MSN+BAP (1.0 mg L-1)+GA3 (1.0 mg L-1)e0
Gene
GRF1 and GRF5e0
Outcome
expressions of growth regulating factor genese0
Direction
elevatede0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus jambhiri
Citrus jambhiri · TaxonTon Rulkens from Mozambique · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The expressions of growth regulating factor genes (GRF1 and GRF5) and GA3 signaling genes (GA2OX1 and KO1) were elevated in the regenerants obtained from MSN+BAP (1.0 mg L-1)+GA3 (1.0 mg L-1).”

✓ located verbatim in the source · abstract, characters 859–1051 · show in text ↑
t0

“Citrus jambhiri Lush.”

✓ located verbatim in the source · title, characters 54–75 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Regenerants from MSN+BAP+GA3 had elevated GA2OX1 and KO1 expression.

Taxon
Citrus jambhiri Lush.Citrus jambhirit0
Treatment
MSN+BAP (1.0 mg L-1)+GA3 (1.0 mg L-1)e0
Gene
GA2OX1 and KO1e0
Outcome
expressions of growth regulating factor genes (GRF1 and GRF5) and GA3 signaling genese0
Direction
elevatede0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus jambhiri
Citrus jambhiri · TaxonTon Rulkens from Mozambique · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The expressions of growth regulating factor genes (GRF1 and GRF5) and GA3 signaling genes (GA2OX1 and KO1) were elevated in the regenerants obtained from MSN+BAP (1.0 mg L-1)+GA3 (1.0 mg L-1).”

✓ located verbatim in the source · abstract, characters 859–1051 · show in text ↑
t0

“Citrus jambhiri Lush.”

✓ located verbatim in the source · title, characters 54–75 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Roots grown on half-strength MSN plus IAA had high auxin-regulating gene expression.

Taxon
Citrus jambhiri Lush.Citrus jambhirit0
Treatment
½ MSN+IAA 1.0 mg L-1e0
Gene
auxin regulating genese0
Outcome
expressions of auxin regulating genese0
Direction
highe0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus jambhiri
Citrus jambhiri · TaxonTon Rulkens from Mozambique · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The expressions of auxin regulating genes were high in roots obtained in ½ MSN+IAA 1.0 mg L-1.”

✓ located verbatim in the source · abstract, characters 1052–1146 · show in text ↑
t0

“Citrus jambhiri Lush.”

✓ located verbatim in the source · title, characters 54–75 · show in text ↑
Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

Indexing detected no Huanglongbing bacterium amplicons in regenerants.

Taxon
Citrus jambhiri Lush.Citrus jambhirit0
Interactor
Huanglongbing bacteriume0pathogen
Outcome
no amplicons detected for Huanglongbing bacteriume0

Not reportedComparatorValue

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus jambhiri
Citrus jambhiri · TaxonTon Rulkens from Mozambique · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Furthermore, indexing of the regenerants confirmed that there was no amplicons detected for Huanglongbing bacterium and Citrus tristeza virus.”

✓ located verbatim in the source · abstract, characters 1147–1289 · show in text ↑
t0

“Citrus jambhiri Lush.”

✓ located verbatim in the source · title, characters 54–75 · show in text ↑
Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

Indexing detected no Citrus tristeza virus amplicons in regenerants.

Taxon
Citrus jambhiri Lush.Citrus jambhirit0
Interactor
Citrus tristeza virusCitrus tristeza viruse0pathogen
Outcome
no amplicons detected for Huanglongbing bacterium and Citrus tristeza viruse0

Not reportedComparatorValue

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus jambhiri
Citrus jambhiri · TaxonTon Rulkens from Mozambique · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Furthermore, indexing of the regenerants confirmed that there was no amplicons detected for Huanglongbing bacterium and Citrus tristeza virus.”

✓ located verbatim in the source · abstract, characters 1147–1289 · show in text ↑
t0

“Citrus jambhiri Lush.”

✓ located verbatim in the source · title, characters 54–75 · show in text ↑
Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

RAPD and ISSR markers detected no polymorphic bands among regenerated plants.

Taxon
Citrus jambhiri Lush.Citrus jambhirit0
Outcome
no polymorphic bands amongst the regenerated plantse0
Comparator
regenerated plantse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus jambhiri
Citrus jambhiri · TaxonTon Rulkens from Mozambique · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Random amplified polymorphic DNA (RAPD) and inter simple sequence repeat (ISSR) markers detected no polymorphic bands amongst the regenerated plants.”

✓ located verbatim in the source · abstract, characters 1290–1439 · show in text ↑
t0

“Citrus jambhiri Lush.”

✓ located verbatim in the source · title, characters 54–75 · show in text ↑

indole-3-acetic acid · growth · Citrus jambhiri (rough lemon)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

2 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. negative
  3. positive
See all 4 papers →

in vitro · growth · Citrus jambhiri (rough lemon)Positive and negative results

10 papers: 7 positive, 3 negative or no effect

6 papers in the same direction as this paper · 3 in the opposite direction

  1. positive
  2. positive
  3. negative

6 papers more in this group

See all 10 papers →

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.