Alternative induction of de novo shoot organogenesis or somatic embryogenesis from in vitro cultures of mature zygotic embryos of passion fruit (Passiflora edulis Sims) is modulated by the ratio between auxin and cytokinin in the medium

2014 ◽  
Vol 120 (3) ◽  
pp. 1087-1098 ◽  
Author(s):  
Diego Ismael Rocha ◽  
Carolina Cassano Monte-Bello ◽  
Marcelo Carnier Dornelas
Keyword(s):  
Somatic Embryogenesis ◽  
De Novo ◽  
Shoot Organogenesis ◽  
In Vitro Cultures ◽  
Passion Fruit ◽  
Zygotic Embryos ◽  
Passiflora Edulis ◽  
Passiflora Edulis Sims

Anatomical and ultrastructural analyses of in vitro organogenesis from root explants of commercial passion fruit (Passiflora edulis Sims)

2012 ◽  
Vol 111 (1) ◽  
pp. 69-78 ◽  
Author(s):  
Diego Ismael Rocha ◽  
Lorena Melo Vieira ◽  
Francisco André Ossamu Tanaka ◽  
Luzimar Campos da Silva ◽  
Wagner Campos Otoni
Keyword(s):  
Passion Fruit ◽  
Root Explants ◽  
Passiflora Edulis ◽  
In Vitro Organogenesis ◽  
Passiflora Edulis Sims

scholarly journals Somatic embryogenesis from mature zygotic embryos of commercial passionfruit (Passiflora edulis Sims) genotypes

2011 ◽  
Vol 107 (3) ◽  
pp. 521-530 ◽  
Author(s):  
Daniela Lopes Paim Pinto ◽  
Ana Maria Rocha de Almeida ◽  
Mailson Monteiro Rêgo ◽  
Maurecilne Lemes da Silva ◽  
Evelyn Jardim de Oliveira ◽  
...  
Keyword(s):  
Somatic Embryogenesis ◽  
Zygotic Embryos ◽  
Passiflora Edulis ◽  
Passiflora Edulis Sims

scholarly journals Biological fixation, transfer and balance of nitrogen in passion fruit (Passiflora edulis Sims) orchard intercropped with different green manure crops

2019 ◽  
Vol 13 ((03) 2019) ◽  
pp. 465-471 ◽  
Author(s):  
Edilândia Farias Dantas ◽  
Ana Dolores Santiago de Freitas ◽  
Maria do Carmo Catanho Pereira de Lyra ◽  
Carolina Etienne de Rosália e Silva Santos ◽  
Stella Jorge de Carvalho Neta ◽  
...  
Keyword(s):  
Cover Crops ◽  
Pigeon Pea ◽  
Passion Fruit ◽  
Biological Fixation ◽  
Mineral Fertilization ◽  
Passiflora Edulis ◽  
Jack Bean ◽  
Positive Balance ◽  
Sunn Hemp ◽  
Passiflora Edulis Sims

Green manures can replace or supplement mineral fertilization and add organic matter to the soils, ensuring greater sustainability to fruit growing in semiarid regions. Biological fixation, transfer and balance of nitrogen were determined on an irrigated yellow passion fruit orchard (Passiflora edulis Sims) intercropped separately with three cover crops: sunn hemp, Crotalaria juncea (L.); pigeon pea, Cajanus cajan (L.) Mill; and jack bean, Canavalia ensiformis (L.) DC. In a fourth treatment, legumes were not planted, but spontaneous vegetation was left to grow freely. The legumes were croped for 90 days in three lines (0.5 m apart) inside the passion fruit plant lines (2.5 m apart). Fixation and transfers were determined by the 15N natural abundance technique, using sunflower as a reference plant. The three planted legumes nodulated abundantly and fixed nitrogen in high proportions (between 50 and 90% of their N), forming symbiosis with bacteria naturally established in the soil. Jack bean produced more biomass than sunn hemp and pigeon pea, and as much as the spontaneous plants, of which 23% were legumes. The amounts of fixed N (150, 43, 30 and 29 kg ha-1) were determined mainly by the biomass of legumes. More than 40% of the N of passion fruit plants came from the biological nitrogen fixation of the intercropped jack bean, which provided an amount of N higher than that exported in the fruits, generating a positive balance of more than 100 kg ha-1. Therefore, it is recommended to intercrop jack bean in irrigated passion fruit orchards.

scholarly journals Natural Variation in Plant Pluripotency and Regeneration

Plants ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1261
Author(s):  
Robin Lardon ◽  
Danny Geelen
Keyword(s):  
De Novo ◽  
Shoot Organogenesis ◽  
In Vitro Regeneration ◽  
Relative Role ◽  
Root Explants ◽  
Experimental Systems ◽  
Complex Process ◽  
Insight Into ◽  
Molecular Framework

Plant regeneration is essential for survival upon wounding and is, hence, considered to be a strong natural selective trait. The capacity of plant tissues to regenerate in vitro, however, varies substantially between and within species and depends on the applied incubation conditions. Insight into the genetic factors underlying this variation may help to improve numerous biotechnological applications that exploit in vitro regeneration. Here, we review the state of the art on the molecular framework of de novo shoot organogenesis from root explants in Arabidopsis, which is a complex process controlled by multiple quantitative trait loci of various effect sizes. Two types of factors are distinguished that contribute to natural regenerative variation: master regulators that are conserved in all experimental systems (e.g., WUSCHEL and related homeobox genes) and conditional regulators whose relative role depends on the explant and the incubation settings. We further elaborate on epigenetic variation and protocol variables that likely contribute to differential explant responsivity within species and conclude that in vitro shoot organogenesis occurs at the intersection between (epi) genetics, endogenous hormone levels, and environmental influences.

scholarly journals Morpho-anatomical and physiological aspects of Passiflora edulis Sims (passion fruit) subjected to flooded conditions during early developmental stages

Biotemas ◽  
2018 ◽  
Vol 31 (3) ◽  
pp. 15-23
Author(s):  
Kamilla Pacheco Govêa ◽  
Antônio Rodrigues Cunha Neto ◽  
Natália Martins Resck ◽  
Letícia Leite Moreira ◽  
Valdir Veroneze Júnior ◽  
...  
Keyword(s):  
Developmental Stages ◽  
Passion Fruit ◽  
Passiflora Edulis ◽  
Early Developmental Stages ◽  
Passiflora Edulis Sims ◽  
Early Developmental

O alagamento no solo é um fenômeno que reduz a sobrevivência, o crescimento e o desenvolvimento de plantas, podendo ocasionar queda na produtividade quando essas são agricultáveis. O maracujazeiro (Passiflora edulis Sims) é uma frutífera comercial com propriedades medicinais cuja produção incentiva a irrigação; e não são encontrados estudos que apresentem efeitos do excesso de água no solo sobre estas plantas. O objetivo deste trabalho foi verificar alterações morfoanatômicas e fisiológicas no desenvolvimento inicial de plântulas de maracujazeiro expostas a diferentes níveis de água no solo. As plântulas foram organizadas em três tratamentos: solo com capacidade de campo, pré-submergido e alagado. Após sete dias, foram feitas análises de trocas gasosas, potencial hídrico, quantificação de prolina e cortes anatômicos de raízes. O solo alagado influencia as trocas gasosas e afeta negativamente a fotossíntese. Não houve alterações no potencial hídrico nem na quantificação de prolina entre os tratamentos. Os tratamentos pré-submergido e alagado apresentaram aerênquima e aumento no diâmetro das raízes e na espessura das barreiras apoplásticas e do córtex. O maracujazeiro apresentou alterações fisiológicas e anatômicas que permitiram sua sobrevivência em condições pré-submergidas e alagadas, o que significa que plântulas jovens dessa espécie suportam maiores quantidades de água no solo.

scholarly journals DEMANDA HÍDRICA DO MARACUJAZEIRO AMARELO (Passiflora edulis Sims f. flavicarpa Deg.)

Irriga ◽  
2002 ◽  
Vol 7 (3) ◽  
pp. 185-190
Author(s):  
Ana Alexandrina Gama da Silva ◽  
Antonio Evaldo Klar
Keyword(s):  
Water Demand ◽  
Crop Coefficient ◽  
Passion Fruit ◽  
Crop Water ◽  
Passiflora Edulis ◽  
Crop Water Demand ◽  
Passiflora Edulis Sims ◽  
E Mail ◽  
Fruit Formation ◽  
Yellow Passion Fruit

DEMANDA HÍDRICA DO MARACUJAZEIRO AMARELO (Passiflora edulis Sims f. flavicarpa Deg.)   Ana Alexandrina Gama da SilvaEmbrapa Tabuleiros Costeiros, CP 44, CEP 49025-040, Aracaju, SE. E-mail: [email protected] Evaldo KlarDepartamento de Engenharia Rural, Faculdade de Ciências Agronômicas, Universidade Estadual Paulista, CP 237, CEP 18603-970, Botucatu, SP. E-mail: [email protected] Científico do CNPq   1 RESUMO  Determinou-se à demanda hídrica e o coeficiente de cultivo (Kc) do maracujá amarelo (Passiflora edulis Sims f. flavicarpa Deg.), seleção Sul-Brasil, cultivado sob irrigação localizada, no município de Botucatu-SP (22o 51’ S,  48o 26’ W). A evapotranspiração máxima da cultura (ETc) e a evapotranspiração de referência (ETo) foram medidas em lisímetros de nível de lençol freático constante, durante o período de 29 de setembro de 2000 a 20 de julho de 2001. Os valores da ETc e ETo foram de 954,98 mm e  1.069,21 mm, respectivamente, durante todo o período medido. Os valores de Kc variaram de 0,42 a 1,12, com os valores máximos registrados entre 150 e 210 dias após o transplantio das mudas no campo (DAT), período correspondente aos estádios fenológicos de florescimento e formação dos frutos.  UNITERMOS: Passiflora edulis, evapotranspiração, coeficiente de cultivo (Kc).   SILVA, A.A.G. da, KLAR, A.E.  YELLOW PASSION FRUIT (Passiflora edulis Sims f. flavicarpa Deg.) CROP: WATER DEMAND.   2 ABSTRACT  Crop water demand and crop water coefficient (Kc = ETc/ETo) of yellow passion fruit were evaluated in constant level lysimeters under drip irrigation from September 21, 2000 to July 31, 2001 in Botucatu-SP. The maximum crop water demand (ETc) and the Reference Evapotranspiration (ETo), measured by lysimeters, were 954.98 mm and 1,069.21 mm, respectively, during all period measured. The values of Kc varied from 0.42 to 1.12  with maximum values registered from 150 to 210 days following transplanting during flowering and fruit formation  phases.  KEYWORDS: Passiflora edulis, evapotranspiration, crop coefficient (Kc). 

scholarly journals Somatic embryogenesis as an alternative for in vitro multiplication of Butia odorata from mature zygotic embryos

2020 ◽  
Vol 92 (suppl 1) ◽  
Author(s):  
SAMANTA S. DE CAMPOS ◽  
JONNY E. SCHERWINSKI-PEREIRA ◽  
REGINA B. BERND ◽  
CLAUDIMAR S. FIOR ◽  
SERGIO F. SCHWAZ
Keyword(s):  
Somatic Embryogenesis ◽  
Zygotic Embryos ◽  
In Vitro Multiplication
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