scholarly journals Niches of nine mangrove species in a Sonneratia apetala ‐colonized area of Dongzhai Harbor, Hainan Island, China

2020 ◽  
Vol 10 (20) ◽  
pp. 11838-11846
Author(s):  
Feng Wu ◽  
Baowen Liao ◽  
Yujun Chen ◽  
Zhongmao Jiang ◽  
Yunpeng Guo ◽  
...  
Keyword(s):  
Hainan Island ◽  
Mangrove Species ◽  
Sonneratia Apetala

scholarly journals Impact of various factors on in vitro investigation of rare mangrove species Sonneratia apetala Buch.-Ham. (Myrtales: Lythraceae) and Suaeda maritima (L.) Dumort (Caryophyllales: Amaranthaceae)

2016 ◽  
Vol 3 (5) ◽  
pp. 181
Author(s):  
Abdul Kader ◽  
Sankar Narayan Sinha ◽  
Parthadeb Ghosh
Keyword(s):  
Callus Formation ◽  
Monsoon Season ◽  
Gene Isolation ◽  
Nodal Segments ◽  
Mangrove Species ◽  
Sonneratia Apetala ◽  
Suaeda Maritima ◽  
In Vitro Investigation ◽  
Callus Initiation

Recent studies have showed the importance and destruction of mangroves. So their restoration through tissue culture study is urgently required because in vivo propagation is plagued with unforeseen obstacles. In vitro investigation of mangroves found to be suitable material for salt tolerant mechanism studies and anti stress gene isolation. This study describes for the first time in vitro approach for rare species Sonneratia apetala Buch.-Ham. (Myrtales: Lythraceae) and herb species Suaeda maritima (L.) Dumort (Caryophyllales: Amaranthaceae) through callus. For this investigation, as a source of explants various part (leaf, intermodal and nodal segments) of both mangroves were used. These explants were cultured in various types of media (MS, LS, WPM, X and B5) with different combination of phytohormones (2, 4-D and NAA with BAP in combination). We also examined the effect of NaCl and seasons on callus initiation and growth. The highest rate of callus formation was obtained with nodal explants in MS medium supplemented with 1.5 mg.L^-1 NAA and 0.5 mg.L^-1 BAP in combination and 1 mg.L^-1 NAA and 0.5 mg.L^-1 BAP in combination for Sonneratia apetala and Suaeda maritime, respectively. We also found that callus initiation rate and growth decreased with increasing NaCl concentration higher than 80 mM and 120 mM for Sonneratia apetala and Suaeda maritima, respectively in MS media. This study also found that monsoon season was best time for invitro investigation of mangroves. The results presented here give an insight into the development of in vitro investigation suitable for mangroves. The initiated callus could be restored in low salaine or devoid of salaine land.

scholarly journals Salinity: A primary growth driver of mangrove forest

2018 ◽  
Vol 1 (2) ◽  
Author(s):  
ABHIJIT Mitra
Keyword(s):  
Mangrove Forest ◽  
World Heritage Site ◽  
Western Region ◽  
Forest Patches ◽  
Mangrove Species ◽  
Sonneratia Apetala ◽  
Excoecaria Agallocha ◽  
Heritage Site ◽  
Avicennia Alba ◽  
Spatial Locations

The biomass of three dominant mangrove species (Sonneratia apetala, Avicennia alba and Excoecaria agallocha) in the Indian Sundarbans, the designated World Heritage Site was evaluated to understand whether the biomass vary with spatial locations (western region vs. central region) and with seasons (pre-monsoon, monsoon and post-monsoon). The reasons for selecting these two regions and seasons are the contrasting variation in salinity. Among the three studied species, Sonneratia apetala showed the maximum biomass followed by Avicennia alba and Excoecaria agallocha. We also observed that the biomass varied significantly with spatial locations (p<0.05), but not with seasons. The variation may be attributed to different environmental conditions to which these forest patches are exposed to.

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