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You searched for: Publication year rev 7989-2011 Remove constraint Publication year rev: 7989-2011 Subject term chlorophyll Remove constraint Subject term: chlorophyll Subject term Medicago sativa Remove constraint Subject term: Medicago sativa
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1. Acetoacetyl-CoA thiolase regulates the mevalonate pathway during abiotic stress adaptation

Author:
Gabriela Soto; Margarita Stritzler; Christian Lisi; Karina Alleva; María Elba Pagano; Fernando Ardila; Matteo Mozzicafreddo; Massimiliano Cuccioloni; Mauro Angeletti; Nicolás Daniel Ayub
Source:
Journal of experimental botany 2011 v.62 no.15 pp. 5699-5711
ISSN:
0022-0957
Subject:
salt tolerance; crop production; biosynthesis; phenotype; isoprenoids; enzyme activity; transgenic plants; cold stress; squalene; alfalfa; salt stress; acetyl-CoA acetyltransferase; antioxidant activity; chlorophyll; roots; antioxidants; leaves; ascorbic acid
Abstract:
... Acetoacetyl-CoA thiolase (EC 2.3.1.9), also called thiolase II, condenses two molecules of acetyl-CoA to give acetoacetyl-CoA. This is the first enzymatic step in the biosynthesis of isoprenoids via mevalonate (MVA). In this work, thiolase II from alfalfa (MsAACT1) was identified and cloned. The enzymatic activity was experimentally demonstrated in planta and in heterologous systems. The condensat ...
DOI:
10.1093/jxb/err287
PubMed:
21908473

2. Relationship Between Aphid Infestation and Chlorophyll Content in Fabaceae Species

Author:
Sylwia Goławska; Robert Krzyżanowski; Iwona Łukasik
Source:
Acta biologica Cracoviensia 2011 v.52 no.2 pp. 76-80
ISSN:
1898-0295
Subject:
Acyrthosiphon pisum; Medicago sativa; Pisum sativum; Trifolium pratense; Vicia faba; chlorophyll; leaves
Abstract:
... We determined the chlorophyll a and b levels (SPAD readings) in uninfested leaves and in leaves after 7 and 17 days of aphid infestation in four Fabaceae species (Pisum sativum L., Vicia faba L., Trifolium pretense L, Medicago sativa L.). Feeding by pea aphids Acyrthosiphon pisum Harris (Hemiptera: Aphididae) caused significant loss of chlorophyll a and b in the infested plants. Uninfested leaves ...
DOI:
10.2478/v10182-010-0026-4

3. A normalizált vegetációs index (NDVI) mérésének módszertani vizsgálata lucernában (Medicago sativa L.)

Author:
Róbert Vig; Attila Dobos; János Nagy
Source:
Növénytermelés 2011 v.60 no.3 pp. 111-126
ISSN:
2060-8543
Subject:
Medicago sativa; alfalfa; attitudes and opinions; chlorophyll; environmental factors; humidity; models; nitrogen; normalized difference vegetation index; optical equipment; space and time; temperature
Abstract:
... Summary The chlorophyll content and level of nitrogen supply of the crop stand can also be measured indirectly with non-destructive optical instruments that make it possible to map a crop stand and to replenish nitrogen in a differentiated way. GreenSeeker Model 505 measures the relative chlorophyll content in the form of vegetation index (NDVI) which is calculated on the basis of the intensity of ...
DOI:
10.1556/Novenyterm.60.2011.3.6

4. Accumulation and residue of napropamide in alfalfa (Medicago sativa) and soil involved in toxic response

Author:
Li E. Cui; Hong Yang
Source:
Journal of hazardous materials 2011 v.190 no.1-3 pp. 81-86
ISSN:
0304-3894
Subject:
Medicago sativa; agricultural land; alfalfa; chlorophyll; cultivars; ecosystems; genotype; growth retardation; hydrogen peroxide; napropamide; rhizosphere; roots; shoots; soil; superoxide anion; toxicity; weed control
Abstract:
... Napropamide belongs to the amide herbicide family and widely used to control weeds in farmland. Intensive use of the herbicide has resulted in widespread contamination to ecosystems. The present study demonstrated an analysis on accumulation of the toxic pesticide napropamide in six genotypes of alfalfa (Medicago sativa), along with biological parameters and its residues in soils. Soil was treated ...
DOI:
10.1016/j.jhazmat.2011.02.086

5. From Model to Crop: Functional Analysis of a STAY-GREEN Gene in the Model Legume Medicago truncatula and Effective Use of the Gene for Alfalfa Improvement

Author:
Chuanen Zhou; Lu Han; Catalina Pislariu; Jin Nakashima; Chunxiang Fu; Qingzhen Jiang; Li Quan; Elison B. Blancaflor; Yuhong Tang; Joseph H. Bouton; Michael Udvardi; Guangmin Xia; Zeng-Yu Wang
Source:
Plant physiology 2011 v.157 no.3 pp. 1483-1496
ISSN:
0032-0889
Subject:
RNA interference; alfalfa; genes; transposons; carpels; crude protein; Nicotiana tabacum; leaves; seeds; anthers; genetic improvement; mutation; root nodules; alfalfa hay; tobacco; pods; crop models; forage crops; Medicago sativa; mutants; genetic techniques and protocols; Medicago truncatula; chlorophyll; United States
Abstract:
... Medicago truncatula has been developed into a model legume. Its close relative alfalfa (Medicago sativa) is the most widely grown forage legume crop in the United States. By screening a large population of M. truncatula mutants tagged with the transposable element of tobacco (Nicotiana tabacum) cell type1 (Tnt1), we identified a mutant line (NF2089) that maintained green leaves and showed green an ...
DOI:
10.1104/pp.111.185140
PubMed:
21957014
PubMed Central:
PMC3252161